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Posted to commits@trafficserver.apache.org by mt...@apache.org on 2010/05/17 06:52:43 UTC
svn commit: r944969 [2/3] - in /trafficserver/traffic/trunk: Makefile.am
build/ build/common.m4 build/crypto.m4 build/dbd.m4 build/lzma.m4
build/network.m4 build/pcre.m4 build/tcl.m4 build/xml.m4 build/zlib.m4
configure.ac m4/
Added: trafficserver/traffic/trunk/build/tcl.m4
URL: http://svn.apache.org/viewvc/trafficserver/traffic/trunk/build/tcl.m4?rev=944969&view=auto
==============================================================================
--- trafficserver/traffic/trunk/build/tcl.m4 (added)
+++ trafficserver/traffic/trunk/build/tcl.m4 Mon May 17 04:52:42 2010
@@ -0,0 +1,3303 @@
+#------------------------------------------------------------------------
+# SC_PATH_TCLCONFIG --
+#
+# Locate the tclConfig.sh file and perform a sanity check on
+# the Tcl compile flags
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --with-tcl=...
+#
+# Defines the following vars:
+# TCL_BIN_DIR Full path to the directory containing
+# the tclConfig.sh file
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_TCLCONFIG], [
+ #
+ # Ok, lets find the tcl configuration
+ # First, look for one uninstalled.
+ # the alternative search directory is invoked by --with-tcl
+ #
+
+ if test x"${no_tcl}" = x ; then
+ # we reset no_tcl in case something fails here
+ no_tcl=true
+ AC_ARG_WITH(tcl,
+ AC_HELP_STRING([--with-tcl],
+ [directory containing tcl configuration (tclConfig.sh)]),
+ with_tclconfig="${withval}")
+ AC_MSG_CHECKING([for Tcl configuration])
+ AC_CACHE_VAL(ac_cv_c_tclconfig,[
+
+ # First check to see if --with-tcl was specified.
+ if test x"${with_tclconfig}" != x ; then
+ case "${with_tclconfig}" in
+ */tclConfig.sh )
+ if test -f "${with_tclconfig}"; then
+ AC_MSG_WARN([--with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself])
+ with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
+ fi ;;
+ esac
+ if test -f "${with_tclconfig}/tclConfig.sh" ; then
+ ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
+ else
+ AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
+ fi
+ fi
+
+ # then check for a private Tcl installation
+ if test x"${ac_cv_c_tclconfig}" = x ; then
+ for i in \
+ ../tcl \
+ `ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ ../../tcl \
+ `ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ ../../../tcl \
+ `ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+ if test -f "$i/unix/tclConfig.sh" ; then
+ ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+ break
+ fi
+ done
+ fi
+
+ # on Darwin, check in Framework installation locations
+ if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tclconfig}" = x ; then
+ for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
+ `ls -d /Library/Frameworks 2>/dev/null` \
+ `ls -d /Network/Library/Frameworks 2>/dev/null` \
+ `ls -d /System/Library/Frameworks 2>/dev/null` \
+ ; do
+ if test -f "$i/Tcl.framework/tclConfig.sh" ; then
+ ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
+ break
+ fi
+ done
+ fi
+
+ # check in a few common install locations
+ if test x"${ac_cv_c_tclconfig}" = x ; then
+ for i in `ls -d ${libdir} 2>/dev/null` \
+ `ls -d ${exec_prefix}/lib 2>/dev/null` \
+ `ls -dr ${exec_prefix}/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ${exec_prefix}/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ${exec_prefix}/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ `ls -d ${prefix}/lib 2>/dev/null` \
+ `ls -dr ${prefix}/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ${prefix}/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ${prefix}/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ `ls -d /usr/local/lib 2>/dev/null` \
+ `ls -dr /usr/local/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr /usr/local/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr /usr/local/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ `ls -d /usr/lib64 2>/dev/null` \
+ `ls -dr /usr/lib64/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr /usr/lib64/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr /usr/lib64/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ `ls -d /usr/contrib/lib 2>/dev/null` \
+ `ls -dr /usr/contrib/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr /usr/contrib/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr /usr/contrib/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ `ls -d /usr/lib 2>/dev/null` \
+ `ls -dr /usr/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr /usr/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr /usr/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+ ; do
+ if test -f "$i/tclConfig.sh" ; then
+ ac_cv_c_tclconfig="`(cd $i; pwd)`"
+ break
+ fi
+ done
+ fi
+
+ # check in a few other private locations
+ if test x"${ac_cv_c_tclconfig}" = x ; then
+ for i in \
+ ${srcdir}/../tcl \
+ `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+ if test -f "$i/unix/tclConfig.sh" ; then
+ ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+ break
+ fi
+ done
+ fi
+ ])
+
+ if test x"${ac_cv_c_tclconfig}" = x ; then
+ TCL_BIN_DIR="# no Tcl configs found"
+ AC_MSG_WARN([Can't find Tcl configuration definitions])
+ exit 0
+ else
+ no_tcl=
+ TCL_BIN_DIR="${ac_cv_c_tclconfig}"
+ AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
+ fi
+ fi
+])
+
+#------------------------------------------------------------------------
+# SC_PATH_TKCONFIG --
+#
+# Locate the tkConfig.sh file
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --with-tk=...
+#
+# Defines the following vars:
+# TK_BIN_DIR Full path to the directory containing
+# the tkConfig.sh file
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_TKCONFIG], [
+ #
+ # Ok, lets find the tk configuration
+ # First, look for one uninstalled.
+ # the alternative search directory is invoked by --with-tk
+ #
+
+ if test x"${no_tk}" = x ; then
+ # we reset no_tk in case something fails here
+ no_tk=true
+ AC_ARG_WITH(tk,
+ AC_HELP_STRING([--with-tk],
+ [directory containing tk configuration (tkConfig.sh)]),
+ with_tkconfig="${withval}")
+ AC_MSG_CHECKING([for Tk configuration])
+ AC_CACHE_VAL(ac_cv_c_tkconfig,[
+
+ # First check to see if --with-tkconfig was specified.
+ if test x"${with_tkconfig}" != x ; then
+ case "${with_tkconfig}" in
+ */tkConfig.sh )
+ if test -f "${with_tkconfig}"; then
+ AC_MSG_WARN([--with-tk argument should refer to directory containing tkConfig.sh, not to tkConfig.sh itself])
+ with_tkconfig="`echo "${with_tkconfig}" | sed 's!/tkConfig\.sh$!!'`"
+ fi ;;
+ esac
+ if test -f "${with_tkconfig}/tkConfig.sh" ; then
+ ac_cv_c_tkconfig="`(cd "${with_tkconfig}"; pwd)`"
+ else
+ AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
+ fi
+ fi
+
+ # then check for a private Tk library
+ if test x"${ac_cv_c_tkconfig}" = x ; then
+ for i in \
+ ../tk \
+ `ls -dr ../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ../tk[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+ ../../tk \
+ `ls -dr ../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+ ../../../tk \
+ `ls -dr ../../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+ if test -f "$i/unix/tkConfig.sh" ; then
+ ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
+ break
+ fi
+ done
+ fi
+
+ # on Darwin, check in Framework installation locations
+ if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tkconfig}" = x ; then
+ for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
+ `ls -d /Library/Frameworks 2>/dev/null` \
+ `ls -d /Network/Library/Frameworks 2>/dev/null` \
+ `ls -d /System/Library/Frameworks 2>/dev/null` \
+ ; do
+ if test -f "$i/Tk.framework/tkConfig.sh" ; then
+ ac_cv_c_tkconfig="`(cd $i/Tk.framework; pwd)`"
+ break
+ fi
+ done
+ fi
+
+ # check in a few common install locations
+ if test x"${ac_cv_c_tkconfig}" = x ; then
+ for i in `ls -d ${libdir} 2>/dev/null` \
+ `ls -d ${exec_prefix}/lib 2>/dev/null` \
+ `ls -d ${prefix}/lib 2>/dev/null` \
+ `ls -d /usr/local/lib 2>/dev/null` \
+ `ls -d /usr/contrib/lib 2>/dev/null` \
+ `ls -d /usr/lib 2>/dev/null` \
+ ; do
+ if test -f "$i/tkConfig.sh" ; then
+ ac_cv_c_tkconfig="`(cd $i; pwd)`"
+ break
+ fi
+ done
+ fi
+
+ # check in a few other private locations
+ if test x"${ac_cv_c_tkconfig}" = x ; then
+ for i in \
+ ${srcdir}/../tk \
+ `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+ `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
+ `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+ if test -f "$i/unix/tkConfig.sh" ; then
+ ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
+ break
+ fi
+ done
+ fi
+ ])
+
+ if test x"${ac_cv_c_tkconfig}" = x ; then
+ TK_BIN_DIR="# no Tk configs found"
+ AC_MSG_WARN([Can't find Tk configuration definitions])
+ exit 0
+ else
+ no_tk=
+ TK_BIN_DIR="${ac_cv_c_tkconfig}"
+ AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
+ fi
+ fi
+])
+
+#------------------------------------------------------------------------
+# SC_LOAD_TCLCONFIG --
+#
+# Load the tclConfig.sh file
+#
+# Arguments:
+#
+# Requires the following vars to be set:
+# TCL_BIN_DIR
+#
+# Results:
+#
+# Subst the following vars:
+# TCL_BIN_DIR
+# TCL_SRC_DIR
+# TCL_LIB_FILE
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_LOAD_TCLCONFIG], [
+ AC_MSG_CHECKING([for existence of ${TCL_BIN_DIR}/tclConfig.sh])
+
+ if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
+ AC_MSG_RESULT([loading])
+ . "${TCL_BIN_DIR}/tclConfig.sh"
+ else
+ AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
+ fi
+
+ # eval is required to do the TCL_DBGX substitution
+ eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
+ eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
+
+ # If the TCL_BIN_DIR is the build directory (not the install directory),
+ # then set the common variable name to the value of the build variables.
+ # For example, the variable TCL_LIB_SPEC will be set to the value
+ # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
+ # instead of TCL_BUILD_LIB_SPEC since it will work with both an
+ # installed and uninstalled version of Tcl.
+ if test -f "${TCL_BIN_DIR}/Makefile" ; then
+ TCL_LIB_SPEC="${TCL_BUILD_LIB_SPEC}"
+ TCL_STUB_LIB_SPEC="${TCL_BUILD_STUB_LIB_SPEC}"
+ TCL_STUB_LIB_PATH="${TCL_BUILD_STUB_LIB_PATH}"
+ elif test "`uname -s`" = "Darwin"; then
+ # If Tcl was built as a framework, attempt to use the libraries
+ # from the framework at the given location so that linking works
+ # against Tcl.framework installed in an arbitary location.
+ case ${TCL_DEFS} in
+ *TCL_FRAMEWORK*)
+ if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
+ for i in "`cd "${TCL_BIN_DIR}"; pwd`" \
+ "`cd "${TCL_BIN_DIR}"/../..; pwd`"; do
+ if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
+ TCL_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TCL_LIB_FILE}"
+ break
+ fi
+ done
+ fi
+ if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
+ TCL_STUB_LIB_SPEC="-L`echo "${TCL_BIN_DIR}" | sed -e 's/ /\\\\ /g'` ${TCL_STUB_LIB_FLAG}"
+ TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
+ fi
+ ;;
+ esac
+ fi
+
+ # eval is required to do the TCL_DBGX substitution
+ eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
+ eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
+ eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
+ eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
+
+ AC_SUBST(TCL_VERSION)
+ AC_SUBST(TCL_PATCH_LEVEL)
+ AC_SUBST(TCL_BIN_DIR)
+ AC_SUBST(TCL_SRC_DIR)
+
+ AC_SUBST(TCL_LIB_FILE)
+ AC_SUBST(TCL_LIB_FLAG)
+ AC_SUBST(TCL_LIB_SPEC)
+
+ AC_SUBST(TCL_STUB_LIB_FILE)
+ AC_SUBST(TCL_STUB_LIB_FLAG)
+ AC_SUBST(TCL_STUB_LIB_SPEC)
+])
+
+#------------------------------------------------------------------------
+# SC_LOAD_TKCONFIG --
+#
+# Load the tkConfig.sh file
+#
+# Arguments:
+#
+# Requires the following vars to be set:
+# TK_BIN_DIR
+#
+# Results:
+#
+# Sets the following vars that should be in tkConfig.sh:
+# TK_BIN_DIR
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_LOAD_TKCONFIG], [
+ AC_MSG_CHECKING([for existence of ${TK_BIN_DIR}/tkConfig.sh])
+
+ if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
+ AC_MSG_RESULT([loading])
+ . "${TK_BIN_DIR}/tkConfig.sh"
+ else
+ AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
+ fi
+
+ # eval is required to do the TK_DBGX substitution
+ eval "TK_LIB_FILE=\"${TK_LIB_FILE}\""
+ eval "TK_STUB_LIB_FILE=\"${TK_STUB_LIB_FILE}\""
+
+ # If the TK_BIN_DIR is the build directory (not the install directory),
+ # then set the common variable name to the value of the build variables.
+ # For example, the variable TK_LIB_SPEC will be set to the value
+ # of TK_BUILD_LIB_SPEC. An extension should make use of TK_LIB_SPEC
+ # instead of TK_BUILD_LIB_SPEC since it will work with both an
+ # installed and uninstalled version of Tcl.
+ if test -f "${TK_BIN_DIR}/Makefile" ; then
+ TK_LIB_SPEC="${TK_BUILD_LIB_SPEC}"
+ TK_STUB_LIB_SPEC="${TK_BUILD_STUB_LIB_SPEC}"
+ TK_STUB_LIB_PATH="${TK_BUILD_STUB_LIB_PATH}"
+ elif test "`uname -s`" = "Darwin"; then
+ # If Tk was built as a framework, attempt to use the libraries
+ # from the framework at the given location so that linking works
+ # against Tk.framework installed in an arbitary location.
+ case ${TK_DEFS} in
+ *TK_FRAMEWORK*)
+ if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
+ for i in "`cd "${TK_BIN_DIR}"; pwd`" \
+ "`cd "${TK_BIN_DIR}"/../..; pwd`"; do
+ if test "`basename "$i"`" = "${TK_LIB_FILE}.framework"; then
+ TK_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TK_LIB_FILE}"
+ break
+ fi
+ done
+ fi
+ if test -f "${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"; then
+ TK_STUB_LIB_SPEC="-L` echo "${TK_BIN_DIR}" | sed -e 's/ /\\\\ /g'` ${TK_STUB_LIB_FLAG}"
+ TK_STUB_LIB_PATH="${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"
+ fi
+ ;;
+ esac
+ fi
+
+ # eval is required to do the TK_DBGX substitution
+ eval "TK_LIB_FLAG=\"${TK_LIB_FLAG}\""
+ eval "TK_LIB_SPEC=\"${TK_LIB_SPEC}\""
+ eval "TK_STUB_LIB_FLAG=\"${TK_STUB_LIB_FLAG}\""
+ eval "TK_STUB_LIB_SPEC=\"${TK_STUB_LIB_SPEC}\""
+
+ AC_SUBST(TK_VERSION)
+ AC_SUBST(TK_BIN_DIR)
+ AC_SUBST(TK_SRC_DIR)
+
+ AC_SUBST(TK_LIB_FILE)
+ AC_SUBST(TK_LIB_FLAG)
+ AC_SUBST(TK_LIB_SPEC)
+
+ AC_SUBST(TK_STUB_LIB_FILE)
+ AC_SUBST(TK_STUB_LIB_FLAG)
+ AC_SUBST(TK_STUB_LIB_SPEC)
+])
+
+#------------------------------------------------------------------------
+# SC_PROG_TCLSH
+# Locate a tclsh shell installed on the system path. This macro
+# will only find a Tcl shell that already exists on the system.
+# It will not find a Tcl shell in the Tcl build directory or
+# a Tcl shell that has been installed from the Tcl build directory.
+# If a Tcl shell can't be located on the PATH, then TCLSH_PROG will
+# be set to "". Extensions should take care not to create Makefile
+# rules that are run by default and depend on TCLSH_PROG. An
+# extension can't assume that an executable Tcl shell exists at
+# build time.
+#
+# Arguments
+# none
+#
+# Results
+# Subst's the following values:
+# TCLSH_PROG
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PROG_TCLSH], [
+ AC_MSG_CHECKING([for tclsh])
+ AC_CACHE_VAL(ac_cv_path_tclsh, [
+ search_path=`echo ${PATH} | sed -e 's/:/ /g'`
+ for dir in $search_path ; do
+ for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
+ `ls -r $dir/tclsh* 2> /dev/null` ; do
+ if test x"$ac_cv_path_tclsh" = x ; then
+ if test -f "$j" ; then
+ ac_cv_path_tclsh=$j
+ break
+ fi
+ fi
+ done
+ done
+ ])
+
+ if test -f "$ac_cv_path_tclsh" ; then
+ TCLSH_PROG="$ac_cv_path_tclsh"
+ AC_MSG_RESULT([$TCLSH_PROG])
+ else
+ # It is not an error if an installed version of Tcl can't be located.
+ TCLSH_PROG=""
+ AC_MSG_RESULT([No tclsh found on PATH])
+ fi
+ AC_SUBST(TCLSH_PROG)
+])
+
+#------------------------------------------------------------------------
+# SC_BUILD_TCLSH
+# Determine the fully qualified path name of the tclsh executable
+# in the Tcl build directory. This macro will correctly determine
+# the name of the tclsh executable even if tclsh has not yet
+# been built in the build directory. The build tclsh must be used
+# when running tests from an extension build directory. It is not
+# correct to use the TCLSH_PROG in cases like this.
+#
+# Arguments
+# none
+#
+# Results
+# Subst's the following values:
+# BUILD_TCLSH
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_BUILD_TCLSH], [
+ AC_MSG_CHECKING([for tclsh in Tcl build directory])
+ BUILD_TCLSH="${TCL_BIN_DIR}"/tclsh
+ AC_MSG_RESULT([$BUILD_TCLSH])
+ AC_SUBST(BUILD_TCLSH)
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_SHARED --
+#
+# Allows the building of shared libraries
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --enable-shared=yes|no
+#
+# Defines the following vars:
+# STATIC_BUILD Used for building import/export libraries
+# on Windows.
+#
+# Sets the following vars:
+# SHARED_BUILD Value of 1 or 0
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_SHARED], [
+ AC_MSG_CHECKING([how to build libraries])
+ AC_ARG_ENABLE(shared,
+ AC_HELP_STRING([--enable-shared],
+ [build and link with shared libraries (default: on)]),
+ [tcl_ok=$enableval], [tcl_ok=yes])
+
+ if test "${enable_shared+set}" = set; then
+ enableval="$enable_shared"
+ tcl_ok=$enableval
+ else
+ tcl_ok=yes
+ fi
+
+ if test "$tcl_ok" = "yes" ; then
+ AC_MSG_RESULT([shared])
+ SHARED_BUILD=1
+ else
+ AC_MSG_RESULT([static])
+ SHARED_BUILD=0
+ AC_DEFINE(STATIC_BUILD, 1, [Is this a static build?])
+ fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_FRAMEWORK --
+#
+# Allows the building of shared libraries into frameworks
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --enable-framework=yes|no
+#
+# Sets the following vars:
+# FRAMEWORK_BUILD Value of 1 or 0
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_FRAMEWORK], [
+ if test "`uname -s`" = "Darwin" ; then
+ AC_MSG_CHECKING([how to package libraries])
+ AC_ARG_ENABLE(framework,
+ AC_HELP_STRING([--enable-framework],
+ [package shared libraries in MacOSX frameworks (default: off)]),
+ [enable_framework=$enableval], [enable_framework=no])
+ if test $enable_framework = yes; then
+ if test $SHARED_BUILD = 0; then
+ AC_MSG_WARN([Frameworks can only be built if --enable-shared is yes])
+ enable_framework=no
+ fi
+ if test $tcl_corefoundation = no; then
+ AC_MSG_WARN([Frameworks can only be used when CoreFoundation is available])
+ enable_framework=no
+ fi
+ fi
+ if test $enable_framework = yes; then
+ AC_MSG_RESULT([framework])
+ FRAMEWORK_BUILD=1
+ else
+ if test $SHARED_BUILD = 1; then
+ AC_MSG_RESULT([shared library])
+ else
+ AC_MSG_RESULT([static library])
+ fi
+ FRAMEWORK_BUILD=0
+ fi
+ fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_THREADS --
+#
+# Specify if thread support should be enabled
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --enable-threads
+#
+# Sets the following vars:
+# THREADS_LIBS Thread library(s)
+#
+# Defines the following vars:
+# TCL_THREADS
+# _REENTRANT
+# _THREAD_SAFE
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_THREADS], [
+ AC_ARG_ENABLE(threads,
+ AC_HELP_STRING([--enable-threads],
+ [build with threads (default: off)]),
+ [tcl_ok=$enableval], [tcl_ok=no])
+
+ if test "${TCL_THREADS}" = 1; then
+ tcl_threaded_core=1;
+ fi
+
+ if test "$tcl_ok" = "yes" -o "${TCL_THREADS}" = 1; then
+ TCL_THREADS=1
+ # USE_THREAD_ALLOC tells us to try the special thread-based
+ # allocator that significantly reduces lock contention
+ AC_DEFINE(USE_THREAD_ALLOC, 1,
+ [Do we want to use the threaded memory allocator?])
+ AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+ if test "`uname -s`" = "SunOS" ; then
+ AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+ [Do we really want to follow the standard? Yes we do!])
+ fi
+ AC_DEFINE(_THREAD_SAFE, 1, [Do we want the thread-safe OS API?])
+ AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
+ if test "$tcl_ok" = "no"; then
+ # Check a little harder for __pthread_mutex_init in the same
+ # library, as some systems hide it there until pthread.h is
+ # defined. We could alternatively do an AC_TRY_COMPILE with
+ # pthread.h, but that will work with libpthread really doesn't
+ # exist, like AIX 4.2. [Bug: 4359]
+ AC_CHECK_LIB(pthread, __pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ fi
+
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -lpthread"
+ else
+ AC_CHECK_LIB(pthreads, pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -lpthreads"
+ else
+ AC_CHECK_LIB(c, pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ if test "$tcl_ok" = "no"; then
+ AC_CHECK_LIB(c_r, pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -pthread"
+ else
+ TCL_THREADS=0
+ AC_MSG_WARN([Don't know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...])
+ fi
+ fi
+ fi
+ fi
+
+ # Does the pthread-implementation provide
+ # 'pthread_attr_setstacksize' ?
+
+ ac_saved_libs=$LIBS
+ LIBS="$LIBS $THREADS_LIBS"
+ AC_CHECK_FUNCS(pthread_attr_setstacksize)
+ AC_CHECK_FUNC(pthread_attr_get_np,tcl_ok=yes,tcl_ok=no)
+ if test $tcl_ok = yes ; then
+ AC_DEFINE(HAVE_PTHREAD_ATTR_GET_NP, 1,
+ [Do we want a BSD-like thread-attribute interface?])
+ AC_CACHE_CHECK([for pthread_attr_get_np declaration],
+ tcl_cv_grep_pthread_attr_get_np, [
+ AC_EGREP_HEADER(pthread_attr_get_np, pthread.h,
+ tcl_cv_grep_pthread_attr_get_np=present,
+ tcl_cv_grep_pthread_attr_get_np=missing)])
+ if test $tcl_cv_grep_pthread_attr_get_np = missing ; then
+ AC_DEFINE(ATTRGETNP_NOT_DECLARED, 1,
+ [Is pthread_attr_get_np() declared in <pthread.h>?])
+ fi
+ else
+ AC_CHECK_FUNC(pthread_getattr_np,tcl_ok=yes,tcl_ok=no)
+ if test $tcl_ok = yes ; then
+ AC_DEFINE(HAVE_PTHREAD_GETATTR_NP, 1,
+ [Do we want a Linux-like thread-attribute interface?])
+ AC_CACHE_CHECK([for pthread_getattr_np declaration],
+ tcl_cv_grep_pthread_getattr_np, [
+ AC_EGREP_HEADER(pthread_getattr_np, pthread.h,
+ tcl_cv_grep_pthread_getattr_np=present,
+ tcl_cv_grep_pthread_getattr_np=missing)])
+ if test $tcl_cv_grep_pthread_getattr_np = missing ; then
+ AC_DEFINE(GETATTRNP_NOT_DECLARED, 1,
+ [Is pthread_getattr_np declared in <pthread.h>?])
+ fi
+ fi
+ fi
+ if test $tcl_ok = no; then
+ # Darwin thread stacksize API
+ AC_CHECK_FUNCS(pthread_get_stacksize_np)
+ fi
+ LIBS=$ac_saved_libs
+ else
+ TCL_THREADS=0
+ fi
+ # Do checking message here to not mess up interleaved configure output
+ AC_MSG_CHECKING([for building with threads])
+ if test "${TCL_THREADS}" = 1; then
+ AC_DEFINE(TCL_THREADS, 1, [Are we building with threads enabled?])
+ if test "${tcl_threaded_core}" = 1; then
+ AC_MSG_RESULT([yes (threaded core)])
+ else
+ AC_MSG_RESULT([yes])
+ fi
+ else
+ AC_MSG_RESULT([no (default)])
+ fi
+
+ AC_SUBST(TCL_THREADS)
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_SYMBOLS --
+#
+# Specify if debugging symbols should be used.
+# Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging
+# can also be enabled.
+#
+# Arguments:
+# none
+#
+# Requires the following vars to be set in the Makefile:
+# CFLAGS_DEBUG
+# CFLAGS_OPTIMIZE
+# LDFLAGS_DEBUG
+# LDFLAGS_OPTIMIZE
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --enable-symbols
+#
+# Defines the following vars:
+# CFLAGS_DEFAULT Sets to $(CFLAGS_DEBUG) if true
+# Sets to $(CFLAGS_OPTIMIZE) if false
+# LDFLAGS_DEFAULT Sets to $(LDFLAGS_DEBUG) if true
+# Sets to $(LDFLAGS_OPTIMIZE) if false
+# DBGX Formerly used as debug library extension;
+# always blank now.
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_SYMBOLS], [
+ AC_MSG_CHECKING([for build with symbols])
+ AC_ARG_ENABLE(symbols,
+ AC_HELP_STRING([--enable-symbols],
+ [build with debugging symbols (default: off)]),
+ [tcl_ok=$enableval], [tcl_ok=no])
+# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
+ DBGX=""
+ if test "$tcl_ok" = "no"; then
+ CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'
+ LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'
+ AC_MSG_RESULT([no])
+ AC_DEFINE(TCL_CFG_OPTIMIZED, 1, [Is this an optimized build?])
+ else
+ CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'
+ LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'
+ if test "$tcl_ok" = "yes"; then
+ AC_MSG_RESULT([yes (standard debugging)])
+ fi
+ fi
+ AC_SUBST(CFLAGS_DEFAULT)
+ AC_SUBST(LDFLAGS_DEFAULT)
+ ### FIXME: Surely TCL_CFG_DEBUG should be set to whether we're debugging?
+ AC_DEFINE(TCL_CFG_DEBUG, 1, [Is debugging enabled?])
+
+ if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
+ AC_DEFINE(TCL_MEM_DEBUG, 1, [Is memory debugging enabled?])
+ fi
+
+ ifelse($1,bccdebug,dnl Only enable 'compile' for the Tcl core itself
+ if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
+ AC_DEFINE(TCL_COMPILE_DEBUG, 1, [Is bytecode debugging enabled?])
+ AC_DEFINE(TCL_COMPILE_STATS, 1, [Are bytecode statistics enabled?])
+ fi)
+
+ if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then
+ if test "$tcl_ok" = "all"; then
+ AC_MSG_RESULT([enabled symbols mem ]ifelse($1,bccdebug,[compile ])[debugging])
+ else
+ AC_MSG_RESULT([enabled $tcl_ok debugging])
+ fi
+ fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_LANGINFO --
+#
+# Allows use of modern nl_langinfo check for better l10n.
+# This is only relevant for Unix.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --enable-langinfo=yes|no (default is yes)
+#
+# Defines the following vars:
+# HAVE_LANGINFO Triggers use of nl_langinfo if defined.
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_LANGINFO], [
+ AC_ARG_ENABLE(langinfo,
+ AC_HELP_STRING([--enable-langinfo],
+ [use nl_langinfo if possible to determine encoding at startup, otherwise use old heuristic (default: on)]),
+ [langinfo_ok=$enableval], [langinfo_ok=yes])
+
+ HAVE_LANGINFO=0
+ if test "$langinfo_ok" = "yes"; then
+ AC_CHECK_HEADER(langinfo.h,[langinfo_ok=yes],[langinfo_ok=no])
+ fi
+ AC_MSG_CHECKING([whether to use nl_langinfo])
+ if test "$langinfo_ok" = "yes"; then
+ AC_CACHE_VAL(tcl_cv_langinfo_h, [
+ AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
+ [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
+ AC_MSG_RESULT([$tcl_cv_langinfo_h])
+ if test $tcl_cv_langinfo_h = yes; then
+ AC_DEFINE(HAVE_LANGINFO, 1, [Do we have nl_langinfo()?])
+ fi
+ else
+ AC_MSG_RESULT([$langinfo_ok])
+ fi
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_MANPAGES
+#
+# Decide whether to use symlinks for linking the manpages,
+# whether to compress the manpages after installation, and
+# whether to add a package name suffix to the installed
+# manpages to avoidfile name clashes.
+# If compression is enabled also find out what file name suffix
+# the given compression program is using.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Adds the following arguments to configure:
+# --enable-man-symlinks
+# --enable-man-compression=PROG
+# --enable-man-suffix[=STRING]
+#
+# Defines the following variable:
+#
+# MAN_FLAGS - The apropriate flags for installManPage
+# according to the user's selection.
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_MANPAGES], [
+ AC_MSG_CHECKING([whether to use symlinks for manpages])
+ AC_ARG_ENABLE(man-symlinks,
+ AC_HELP_STRING([--enable-man-symlinks],
+ [use symlinks for the manpages (default: off)]),
+ test "$enableval" != "no" && MAN_FLAGS="$MAN_FLAGS --symlinks",
+ enableval="no")
+ AC_MSG_RESULT([$enableval])
+
+ AC_MSG_CHECKING([whether to compress the manpages])
+ AC_ARG_ENABLE(man-compression,
+ AC_HELP_STRING([--enable-man-compression=PROG],
+ [compress the manpages with PROG (default: off)]),
+ [case $enableval in
+ yes) AC_MSG_ERROR([missing argument to --enable-man-compression]);;
+ no) ;;
+ *) MAN_FLAGS="$MAN_FLAGS --compress $enableval";;
+ esac],
+ enableval="no")
+ AC_MSG_RESULT([$enableval])
+ if test "$enableval" != "no"; then
+ AC_MSG_CHECKING([for compressed file suffix])
+ touch TeST
+ $enableval TeST
+ Z=`ls TeST* | sed 's/^....//'`
+ rm -f TeST*
+ MAN_FLAGS="$MAN_FLAGS --extension $Z"
+ AC_MSG_RESULT([$Z])
+ fi
+
+ AC_MSG_CHECKING([whether to add a package name suffix for the manpages])
+ AC_ARG_ENABLE(man-suffix,
+ AC_HELP_STRING([--enable-man-suffix=STRING],
+ [use STRING as a suffix to manpage file names (default: no, AC_PACKAGE_NAME if enabled without specifying STRING)]),
+ [case $enableval in
+ yes) enableval="AC_PACKAGE_NAME" MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
+ no) ;;
+ *) MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
+ esac],
+ enableval="no")
+ AC_MSG_RESULT([$enableval])
+
+ AC_SUBST(MAN_FLAGS)
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_SYSTEM
+#
+# Determine what the system is (some things cannot be easily checked
+# on a feature-driven basis, alas). This can usually be done via the
+# "uname" command, but there are a few systems, like Next, where
+# this doesn't work.
+#
+# Arguments:
+# none
+#
+# Results:
+# Defines the following var:
+#
+# system - System/platform/version identification code.
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_SYSTEM], [
+ AC_CACHE_CHECK([system version], tcl_cv_sys_version, [
+ if test -f /usr/lib/NextStep/software_version; then
+ tcl_cv_sys_version=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
+ else
+ tcl_cv_sys_version=`uname -s`-`uname -r`
+ if test "$?" -ne 0 ; then
+ AC_MSG_WARN([can't find uname command])
+ tcl_cv_sys_version=unknown
+ else
+ # Special check for weird MP-RAS system (uname returns weird
+ # results, and the version is kept in special file).
+
+ if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
+ tcl_cv_sys_version=MP-RAS-`awk '{print $[3]}' /etc/.relid`
+ fi
+ if test "`uname -s`" = "AIX" ; then
+ tcl_cv_sys_version=AIX-`uname -v`.`uname -r`
+ fi
+ fi
+ fi
+ ])
+ system=$tcl_cv_sys_version
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_CFLAGS
+#
+# Try to determine the proper flags to pass to the compiler
+# for building shared libraries and other such nonsense.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Defines and substitutes the following vars:
+#
+# DL_OBJS - Name of the object file that implements dynamic
+# loading for Tcl on this system.
+# DL_LIBS - Library file(s) to include in tclsh and other base
+# applications in order for the "load" command to work.
+# LDFLAGS - Flags to pass to the compiler when linking object
+# files into an executable application binary such
+# as tclsh.
+# LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
+# that tell the run-time dynamic linker where to look
+# for shared libraries such as libtcl.so. Depends on
+# the variable LIB_RUNTIME_DIR in the Makefile. Could
+# be the same as CC_SEARCH_FLAGS if ${CC} is used to link.
+# CC_SEARCH_FLAGS-Flags to pass to ${CC}, such as "-Wl,-rpath,/usr/local/tcl/lib",
+# that tell the run-time dynamic linker where to look
+# for shared libraries such as libtcl.so. Depends on
+# the variable LIB_RUNTIME_DIR in the Makefile.
+# MAKE_LIB - Command to execute to build the a library;
+# differs when building shared or static.
+# MAKE_STUB_LIB -
+# Command to execute to build a stub library.
+# INSTALL_LIB - Command to execute to install a library;
+# differs when building shared or static.
+# INSTALL_STUB_LIB -
+# Command to execute to install a stub library.
+# STLIB_LD - Base command to use for combining object files
+# into a static library.
+# SHLIB_CFLAGS - Flags to pass to cc when compiling the components
+# of a shared library (may request position-independent
+# code, among other things).
+# SHLIB_LD - Base command to use for combining object files
+# into a shared library.
+# SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
+# creating shared libraries. This symbol typically
+# goes at the end of the "ld" commands that build
+# shared libraries. The value of the symbol is
+# "${LIBS}" if all of the dependent libraries should
+# be specified when creating a shared library. If
+# dependent libraries should not be specified (as on
+# SunOS 4.x, where they cause the link to fail, or in
+# general if Tcl and Tk aren't themselves shared
+# libraries), then this symbol has an empty string
+# as its value.
+# SHLIB_SUFFIX - Suffix to use for the names of dynamically loadable
+# extensions. An empty string means we don't know how
+# to use shared libraries on this platform.
+# TCL_SHLIB_LD_EXTRAS - Additional element which are added to SHLIB_LD_LIBS
+# TK_SHLIB_LD_EXTRAS for the build of Tcl and Tk, but not recorded in the
+# tclConfig.sh, since they are only used for the build
+# of Tcl and Tk.
+# Examples: MacOS X records the library version and
+# compatibility version in the shared library. But
+# of course the Tcl version of this is only used for Tcl.
+# LIB_SUFFIX - Specifies everything that comes after the "libfoo"
+# in a static or shared library name, using the $VERSION variable
+# to put the version in the right place. This is used
+# by platforms that need non-standard library names.
+# Examples: ${VERSION}.so.1.1 on NetBSD, since it needs
+# to have a version after the .so, and ${VERSION}.a
+# on AIX, since a shared library needs to have
+# a .a extension whereas shared objects for loadable
+# extensions have a .so extension. Defaults to
+# ${VERSION}${SHLIB_SUFFIX}.
+# TCL_NEEDS_EXP_FILE -
+# 1 means that an export file is needed to link to a
+# shared library.
+# TCL_EXP_FILE - The name of the installed export / import file which
+# should be used to link to the Tcl shared library.
+# Empty if Tcl is unshared.
+# TCL_BUILD_EXP_FILE -
+# The name of the built export / import file which
+# should be used to link to the Tcl shared library.
+# Empty if Tcl is unshared.
+# TCL_LIBS -
+# Libs to use when linking Tcl shell or some other
+# shell that includes Tcl libs.
+# CFLAGS_DEBUG -
+# Flags used when running the compiler in debug mode
+# CFLAGS_OPTIMIZE -
+# Flags used when running the compiler in optimize mode
+# CFLAGS - Additional CFLAGS added as necessary (usually 64-bit)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_CFLAGS], [
+
+ # Step 0.a: Enable 64 bit support?
+
+ AC_MSG_CHECKING([if 64bit support is requested])
+ AC_ARG_ENABLE(64bit,
+ AC_HELP_STRING([--enable-64bit],
+ [enable 64bit support (default: off)]),
+ [do64bit=$enableval], [do64bit=no])
+ AC_MSG_RESULT([$do64bit])
+
+ # Step 0.b: Enable Solaris 64 bit VIS support?
+
+ AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
+ AC_ARG_ENABLE(64bit-vis,
+ AC_HELP_STRING([--enable-64bit-vis],
+ [enable 64bit Sparc VIS support (default: off)]),
+ [do64bitVIS=$enableval], [do64bitVIS=no])
+ AC_MSG_RESULT([$do64bitVIS])
+ # Force 64bit on with VIS
+ AS_IF([test "$do64bitVIS" = "yes"], [do64bit=yes])
+
+ # Step 0.c: Check if visibility support is available. Do this here so
+ # that platform specific alternatives can be used below if this fails.
+
+ AC_CACHE_CHECK([if compiler supports visibility "hidden"],
+ tcl_cv_cc_visibility_hidden, [
+ hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
+ AC_TRY_LINK([
+ extern __attribute__((__visibility__("hidden"))) void f(void);
+ void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
+ tcl_cv_cc_visibility_hidden=no)
+ CFLAGS=$hold_cflags])
+ AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
+ AC_DEFINE(MODULE_SCOPE,
+ [extern __attribute__((__visibility__("hidden")))],
+ [Compiler support for module scope symbols])
+ ])
+
+ # Step 0.d: Disable -rpath support?
+
+ AC_MSG_CHECKING([if rpath support is requested])
+ AC_ARG_ENABLE(rpath,
+ AC_HELP_STRING([--disable-rpath],
+ [disable rpath support (default: on)]),
+ [doRpath=$enableval], [doRpath=yes])
+ AC_MSG_RESULT([$doRpath])
+
+ # Step 1: set the variable "system" to hold the name and version number
+ # for the system.
+
+ SC_CONFIG_SYSTEM
+
+ # Step 2: check for existence of -ldl library. This is needed because
+ # Linux can use either -ldl or -ldld for dynamic loading.
+
+ AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
+
+ # Require ranlib early so we can override it in special cases below.
+ LDAIX_SRC=""
+ AS_IF([test x"${SHLIB_VERSION}" = x], [SHLIB_VERSION="1.0"])
+
+ AC_REQUIRE([AC_PROG_RANLIB])
+
+ # Step 3: set configuration options based on system name and version.
+
+ do64bit_ok=no
+ LDFLAGS_ORIG="$LDFLAGS"
+ # When ld needs options to work in 64-bit mode, put them in
+ # LDFLAGS_ARCH so they eventually end up in LDFLAGS even if [load]
+ # is disabled by the user. [Bug 1016796]
+ LDFLAGS_ARCH=""
+ TCL_EXPORT_FILE_SUFFIX=""
+ UNSHARED_LIB_SUFFIX=""
+ TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
+ ECHO_VERSION='`echo ${VERSION}`'
+ TCL_LIB_VERSIONS_OK=ok
+ CFLAGS_DEBUG=-g
+ CFLAGS_OPTIMIZE=-O
+ AS_IF([test "$GCC" = yes], [
+ CFLAGS_WARNING="-Wall"
+ ], [CFLAGS_WARNING=""])
+ TCL_NEEDS_EXP_FILE=0
+ TCL_BUILD_EXP_FILE=""
+ TCL_EXP_FILE=""
+dnl FIXME: Replace AC_CHECK_PROG with AC_CHECK_TOOL once cross compiling is fixed.
+dnl AC_CHECK_TOOL(AR, ar)
+ AC_CHECK_PROG(AR, ar, ar)
+ AS_IF([test "${AR}" = ""], [
+ AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
+ ])
+ STLIB_LD='${AR} cr'
+ LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
+ PLAT_OBJS=""
+ PLAT_SRCS=""
+ case $system in
+ AIX-*)
+ AS_IF([test "${TCL_THREADS}" = "1" -a "$GCC" != "yes"], [
+ # AIX requires the _r compiler when gcc isn't being used
+ case "${CC}" in
+ *_r)
+ # ok ...
+ ;;
+ *)
+ CC=${CC}_r
+ ;;
+ esac
+ AC_MSG_RESULT([Using $CC for compiling with threads])
+ ])
+ LIBS="$LIBS -lc"
+ SHLIB_CFLAGS=""
+ # Note: need the LIBS below, otherwise Tk won't find Tcl's
+ # symbols when dynamically loaded into tclsh.
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+
+ DL_OBJS="tclLoadDl.o"
+ LD_LIBRARY_PATH_VAR="LIBPATH"
+
+ # Check to enable 64-bit flags for compiler/linker on AIX 4+
+ LDAIX_SRC='$(UNIX_DIR)/ldAix'
+ AS_IF([test "$do64bit" = yes -a "`uname -v`" -gt 3], [
+ AS_IF([test "$GCC" = yes], [
+ AC_MSG_WARN([64bit mode not supported with GCC on $system])
+ ], [
+ do64bit_ok=yes
+ CFLAGS="$CFLAGS -q64"
+ LDFLAGS_ARCH="-q64"
+ RANLIB="${RANLIB} -X64"
+ AR="${AR} -X64"
+ SHLIB_LD_FLAGS="-b64"
+ ])
+ ])
+
+ AS_IF([test "`uname -m`" = ia64], [
+ # AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
+ SHLIB_LD="/usr/ccs/bin/ld -G -z text"
+ # AIX-5 has dl* in libc.so
+ DL_LIBS=""
+ AS_IF([test "$GCC" = yes], [
+ CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+ ], [
+ CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
+ ])
+ LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+ ], [
+ AS_IF([test "$GCC" = yes], [SHLIB_LD='${CC} -shared'], [
+ SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
+ ])
+ SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix ${SHLIB_LD} ${SHLIB_LD_FLAGS}"
+ DL_LIBS="-ldl"
+ CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ TCL_NEEDS_EXP_FILE=1
+ TCL_EXPORT_FILE_SUFFIX='${VERSION}.exp'
+ ])
+
+ # AIX v<=4.1 has some different flags than 4.2+
+ AS_IF([test "$system" = "AIX-4.1" -o "`uname -v`" -lt 4], [
+ AC_LIBOBJ([tclLoadAix])
+ DL_LIBS="-lld"
+ ])
+
+ # On AIX <=v4 systems, libbsd.a has to be linked in to support
+ # non-blocking file IO. This library has to be linked in after
+ # the MATH_LIBS or it breaks the pow() function. The way to
+ # insure proper sequencing, is to add it to the tail of MATH_LIBS.
+ # This library also supplies gettimeofday.
+ #
+ # AIX does not have a timezone field in struct tm. When the AIX
+ # bsd library is used, the timezone global and the gettimeofday
+ # methods are to be avoided for timezone deduction instead, we
+ # deduce the timezone by comparing the localtime result on a
+ # known GMT value.
+
+ AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes, libbsd=no)
+ AS_IF([test $libbsd = yes], [
+ MATH_LIBS="$MATH_LIBS -lbsd"
+ AC_DEFINE(USE_DELTA_FOR_TZ, 1, [Do we need a special AIX hack for timezones?])
+ ])
+ ;;
+ BeOS*)
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD='${CC} -nostart'
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+
+ #-----------------------------------------------------------
+ # Check for inet_ntoa in -lbind, for BeOS (which also needs
+ # -lsocket, even if the network functions are in -lnet which
+ # is always linked to, for compatibility.
+ #-----------------------------------------------------------
+ AC_CHECK_LIB(bind, inet_ntoa, [LIBS="$LIBS -lbind -lsocket"])
+ ;;
+ BSD/OS-2.1*|BSD/OS-3*)
+ SHLIB_CFLAGS=""
+ SHLIB_LD="shlicc -r"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ BSD/OS-4.*)
+ SHLIB_CFLAGS="-export-dynamic -fPIC"
+ SHLIB_LD='${CC} -shared'
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ LDFLAGS="$LDFLAGS -export-dynamic"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ dgux*)
+ SHLIB_CFLAGS="-K PIC"
+ SHLIB_LD='${CC} -G'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ HP-UX-*.11.*)
+ # Use updated header definitions where possible
+ AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Do we want to use the XOPEN network library?])
+ AC_DEFINE(_XOPEN_SOURCE, 1, [Do we want to use the XOPEN network library?])
+ LIBS="$LIBS -lxnet" # Use the XOPEN network library
+
+ AS_IF([test "`uname -m`" = ia64], [
+ SHLIB_SUFFIX=".so"
+ ], [
+ SHLIB_SUFFIX=".sl"
+ ])
+ AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
+ AS_IF([test "$tcl_ok" = yes], [
+ SHLIB_CFLAGS="+z"
+ SHLIB_LD="ld -b"
+ SHLIB_LD_LIBS='${LIBS}'
+ DL_OBJS="tclLoadShl.o"
+ DL_LIBS="-ldld"
+ LDFLAGS="$LDFLAGS -Wl,-E"
+ CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
+ LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+ LD_LIBRARY_PATH_VAR="SHLIB_PATH"
+ ])
+ AS_IF([test "$GCC" = yes], [
+ SHLIB_LD='${CC} -shared'
+ SHLIB_LD_LIBS='${LIBS}'
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ ])
+
+ # Users may want PA-RISC 1.1/2.0 portable code - needs HP cc
+ #CFLAGS="$CFLAGS +DAportable"
+
+ # Check to enable 64-bit flags for compiler/linker
+ AS_IF([test "$do64bit" = "yes"], [
+ AS_IF([test "$GCC" = yes], [
+ case `${CC} -dumpmachine` in
+ hppa64*)
+ # 64-bit gcc in use. Fix flags for GNU ld.
+ do64bit_ok=yes
+ SHLIB_LD='${CC} -shared'
+ SHLIB_LD_LIBS='${LIBS}'
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ ;;
+ *)
+ AC_MSG_WARN([64bit mode not supported with GCC on $system])
+ ;;
+ esac
+ ], [
+ do64bit_ok=yes
+ CFLAGS="$CFLAGS +DD64"
+ LDFLAGS_ARCH="+DD64"
+ ])
+ ]) ;;
+ HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
+ SHLIB_SUFFIX=".sl"
+ AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
+ AS_IF([test "$tcl_ok" = yes], [
+ SHLIB_CFLAGS="+z"
+ SHLIB_LD="ld -b"
+ SHLIB_LD_LIBS=""
+ DL_OBJS="tclLoadShl.o"
+ DL_LIBS="-ldld"
+ LDFLAGS="$LDFLAGS -Wl,-E"
+ CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
+ LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+ LD_LIBRARY_PATH_VAR="SHLIB_PATH"
+ ]) ;;
+ IRIX-5.*)
+ SHLIB_CFLAGS=""
+ SHLIB_LD="ld -shared -rdata_shared"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+ ;;
+ IRIX-6.*)
+ SHLIB_CFLAGS=""
+ SHLIB_LD="ld -n32 -shared -rdata_shared"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+ AS_IF([test "$GCC" = yes], [
+ CFLAGS="$CFLAGS -mabi=n32"
+ LDFLAGS="$LDFLAGS -mabi=n32"
+ ], [
+ case $system in
+ IRIX-6.3)
+ # Use to build 6.2 compatible binaries on 6.3.
+ CFLAGS="$CFLAGS -n32 -D_OLD_TERMIOS"
+ ;;
+ *)
+ CFLAGS="$CFLAGS -n32"
+ ;;
+ esac
+ LDFLAGS="$LDFLAGS -n32"
+ ])
+ ;;
+ IRIX64-6.*)
+ SHLIB_CFLAGS=""
+ SHLIB_LD="ld -n32 -shared -rdata_shared"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+
+ # Check to enable 64-bit flags for compiler/linker
+
+ AS_IF([test "$do64bit" = yes], [
+ AS_IF([test "$GCC" = yes], [
+ AC_MSG_WARN([64bit mode not supported by gcc])
+ ], [
+ do64bit_ok=yes
+ SHLIB_LD="ld -64 -shared -rdata_shared"
+ CFLAGS="$CFLAGS -64"
+ LDFLAGS_ARCH="-64"
+ ])
+ ])
+ ;;
+ Linux*)
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+
+ CFLAGS_OPTIMIZE="-O2"
+ # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
+ # when you inline the string and math operations. Turn this off to
+ # get rid of the warnings.
+ #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
+
+ SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
+ AS_IF([test $do64bit = yes], [
+ AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
+ hold_cflags=$CFLAGS
+ CFLAGS="$CFLAGS -m64"
+ AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
+ CFLAGS=$hold_cflags])
+ AS_IF([test $tcl_cv_cc_m64 = yes], [
+ CFLAGS="$CFLAGS -m64"
+ do64bit_ok=yes
+ ])
+ ])
+
+ # The combo of gcc + glibc has a bug related to inlining of
+ # functions like strtod(). The -fno-builtin flag should address
+ # this problem but it does not work. The -fno-inline flag is kind
+ # of overkill but it works. Disable inlining only when one of the
+ # files in compat/*.c is being linked in.
+
+ AS_IF([test x"${USE_COMPAT}" != x],[CFLAGS="$CFLAGS -fno-inline"])
+ ;;
+ GNU*)
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+
+ SHLIB_LD='${CC} -shared'
+ DL_OBJS=""
+ DL_LIBS="-ldl"
+ LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
+ ;;
+ Lynx*)
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ CFLAGS_OPTIMIZE=-02
+ SHLIB_LD='${CC} -shared'
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-mshared -ldl"
+ LD_FLAGS="-Wl,--export-dynamic"
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+ ;;
+ MP-RAS-02*)
+ SHLIB_CFLAGS="-K PIC"
+ SHLIB_LD='${CC} -G'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ MP-RAS-*)
+ SHLIB_CFLAGS="-K PIC"
+ SHLIB_LD='${CC} -G'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ LDFLAGS="$LDFLAGS -Wl,-Bexport"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ NetBSD-1.*|FreeBSD-[[1-2]].*)
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD="ld -Bshareable -x"
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+ AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
+ AC_EGREP_CPP(yes, [
+#ifdef __ELF__
+ yes
+#endif
+ ], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
+ AS_IF([test $tcl_cv_ld_elf = yes], [
+ SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
+ ], [
+ SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+ ])
+
+ # Ancient FreeBSD doesn't handle version numbers with dots.
+
+ UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+ TCL_LIB_VERSIONS_OK=nodots
+ ;;
+ OpenBSD-*)
+ CFLAGS_OPTIMIZE='-O2'
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+ AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
+ AC_EGREP_CPP(yes, [
+#ifdef __ELF__
+ yes
+#endif
+ ], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
+ AS_IF([test $tcl_cv_ld_elf = yes], [
+ LDFLAGS=-Wl,-export-dynamic
+ ], [LDFLAGS=""])
+
+ # OpenBSD doesn't do version numbers with dots.
+ UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+ TCL_LIB_VERSIONS_OK=nodots
+ ;;
+ NetBSD-*|FreeBSD-*)
+ # FreeBSD 3.* and greater have ELF.
+ # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ LDFLAGS="$LDFLAGS -export-dynamic"
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ AS_IF([test "${TCL_THREADS}" = "1"], [
+ # The -pthread needs to go in the CFLAGS, not LIBS
+ LIBS=`echo $LIBS | sed s/-pthread//`
+ CFLAGS="$CFLAGS -pthread"
+ LDFLAGS="$LDFLAGS -pthread"
+ ])
+ case $system in
+ FreeBSD-3.*)
+ # FreeBSD-3 doesn't handle version numbers with dots.
+ UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+ SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
+ TCL_LIB_VERSIONS_OK=nodots
+ ;;
+ esac
+ ;;
+ Darwin-*)
+ CFLAGS_OPTIMIZE="-Os"
+ SHLIB_CFLAGS="-fno-common"
+ # To avoid discrepancies between what headers configure sees during
+ # preprocessing tests and compiling tests, move any -isysroot and
+ # -mmacosx-version-min flags from CFLAGS to CPPFLAGS:
+ CPPFLAGS="${CPPFLAGS} `echo " ${CFLAGS}" | \
+ awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+ if ([$]i~/^(isysroot|mmacosx-version-min)/) print "-"[$]i}'`"
+ CFLAGS="`echo " ${CFLAGS}" | \
+ awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+ if (!([$]i~/^(isysroot|mmacosx-version-min)/)) print "-"[$]i}'`"
+ AS_IF([test $do64bit = yes], [
+ case `arch` in
+ ppc)
+ AC_CACHE_CHECK([if compiler accepts -arch ppc64 flag],
+ tcl_cv_cc_arch_ppc64, [
+ hold_cflags=$CFLAGS
+ CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+ AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
+ tcl_cv_cc_arch_ppc64=no)
+ CFLAGS=$hold_cflags])
+ AS_IF([test $tcl_cv_cc_arch_ppc64 = yes], [
+ CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+ do64bit_ok=yes
+ ]);;
+ i386)
+ AC_CACHE_CHECK([if compiler accepts -arch x86_64 flag],
+ tcl_cv_cc_arch_x86_64, [
+ hold_cflags=$CFLAGS
+ CFLAGS="$CFLAGS -arch x86_64"
+ AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
+ tcl_cv_cc_arch_x86_64=no)
+ CFLAGS=$hold_cflags])
+ AS_IF([test $tcl_cv_cc_arch_x86_64 = yes], [
+ CFLAGS="$CFLAGS -arch x86_64"
+ do64bit_ok=yes
+ ]);;
+ *)
+ AC_MSG_WARN([Don't know how enable 64-bit on architecture `arch`]);;
+ esac
+ ], [
+ # Check for combined 32-bit and 64-bit fat build
+ AS_IF([echo "$CFLAGS " |grep -E -q -- '-arch (ppc64|x86_64) ' \
+ && echo "$CFLAGS " |grep -E -q -- '-arch (ppc|i386) '], [
+ fat_32_64=yes])
+ ])
+ SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
+ AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
+ AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
+ LDFLAGS=$hold_ldflags])
+ AS_IF([test $tcl_cv_ld_single_module = yes], [
+ SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
+ ])
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".dylib"
+ DL_OBJS="tclLoadDyld.o"
+ DL_LIBS=""
+ # Don't use -prebind when building for Mac OS X 10.4 or later only:
+ AS_IF([test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F '10\\.' '{print int([$]2)}'`" -lt 4 -a \
+ "`echo "${CPPFLAGS}" | awk -F '-mmacosx-version-min=10\\.' '{print int([$]2)}'`" -lt 4], [
+ LDFLAGS="$LDFLAGS -prebind"])
+ LDFLAGS="$LDFLAGS -headerpad_max_install_names"
+ AC_CACHE_CHECK([if ld accepts -search_paths_first flag],
+ tcl_cv_ld_search_paths_first, [
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+ AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes,
+ tcl_cv_ld_search_paths_first=no)
+ LDFLAGS=$hold_ldflags])
+ AS_IF([test $tcl_cv_ld_search_paths_first = yes], [
+ LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+ ])
+ AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
+ AC_DEFINE(MODULE_SCOPE, [__private_extern__],
+ [Compiler support for module scope symbols])
+ ])
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
+ AC_DEFINE(MAC_OSX_TCL, 1, [Is this a Mac I see before me?])
+ PLAT_OBJS='${MAC_OSX_OBJS}'
+ PLAT_SRCS='${MAC_OSX_SRCS}'
+ AC_MSG_CHECKING([whether to use CoreFoundation])
+ AC_ARG_ENABLE(corefoundation,
+ AC_HELP_STRING([--enable-corefoundation],
+ [use CoreFoundation API on MacOSX (default: on)]),
+ [tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
+ AC_MSG_RESULT([$tcl_corefoundation])
+ AS_IF([test $tcl_corefoundation = yes], [
+ AC_CACHE_CHECK([for CoreFoundation.framework],
+ tcl_cv_lib_corefoundation, [
+ hold_libs=$LIBS
+ AS_IF([test "$fat_32_64" = yes], [
+ for v in CFLAGS CPPFLAGS LDFLAGS; do
+ # On Tiger there is no 64-bit CF, so remove 64-bit
+ # archs from CFLAGS et al. while testing for
+ # presence of CF. 64-bit CF is disabled in
+ # tclUnixPort.h if necessary.
+ eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
+ done])
+ LIBS="$LIBS -framework CoreFoundation"
+ AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
+ [CFBundleRef b = CFBundleGetMainBundle();],
+ tcl_cv_lib_corefoundation=yes,
+ tcl_cv_lib_corefoundation=no)
+ AS_IF([test "$fat_32_64" = yes], [
+ for v in CFLAGS CPPFLAGS LDFLAGS; do
+ eval $v'="$hold_'$v'"'
+ done])
+ LIBS=$hold_libs])
+ AS_IF([test $tcl_cv_lib_corefoundation = yes], [
+ LIBS="$LIBS -framework CoreFoundation"
+ AC_DEFINE(HAVE_COREFOUNDATION, 1,
+ [Do we have access to Darwin CoreFoundation.framework?])
+ ], [tcl_corefoundation=no])
+ AS_IF([test "$fat_32_64" = yes -a $tcl_corefoundation = yes],[
+ AC_CACHE_CHECK([for 64-bit CoreFoundation],
+ tcl_cv_lib_corefoundation_64, [
+ for v in CFLAGS CPPFLAGS LDFLAGS; do
+ eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
+ done
+ AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
+ [CFBundleRef b = CFBundleGetMainBundle();],
+ tcl_cv_lib_corefoundation_64=yes,
+ tcl_cv_lib_corefoundation_64=no)
+ for v in CFLAGS CPPFLAGS LDFLAGS; do
+ eval $v'="$hold_'$v'"'
+ done])
+ AS_IF([test $tcl_cv_lib_corefoundation_64 = no], [
+ AC_DEFINE(NO_COREFOUNDATION_64, 1,
+ [Is Darwin CoreFoundation unavailable for 64-bit?])
+ LDFLAGS="$LDFLAGS -Wl,-no_arch_warnings"
+ ])
+ ])
+ ])
+ ;;
+ NEXTSTEP-*)
+ SHLIB_CFLAGS=""
+ SHLIB_LD='${CC} -nostdlib -r'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadNext.o"
+ DL_LIBS=""
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ OS/390-*)
+ CFLAGS_OPTIMIZE="" # Optimizer is buggy
+ AC_DEFINE(_OE_SOCKETS, 1, # needed in sys/socket.h
+ [Should OS/390 do the right thing with sockets?])
+ ;;
+ OSF1-1.0|OSF1-1.1|OSF1-1.2)
+ # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
+ SHLIB_CFLAGS=""
+ # Hack: make package name same as library name
+ SHLIB_LD='ld -R -export $@:'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadOSF.o"
+ DL_LIBS=""
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ OSF1-1.*)
+ # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
+ SHLIB_CFLAGS="-fPIC"
+ AS_IF([test "$SHARED_BUILD" = 1], [SHLIB_LD="ld -shared"], [
+ SHLIB_LD="ld -non_shared"
+ ])
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ OSF1-V*)
+ # Digital OSF/1
+ SHLIB_CFLAGS=""
+ AS_IF([test "$SHARED_BUILD" = 1], [
+ SHLIB_LD='ld -shared -expect_unresolved "*"'
+ ], [
+ SHLIB_LD='ld -non_shared -expect_unresolved "*"'
+ ])
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ AS_IF([test $doRpath = yes], [
+ CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+ AS_IF([test "$GCC" = yes], [CFLAGS="$CFLAGS -mieee"], [
+ CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"])
+ # see pthread_intro(3) for pthread support on osf1, k.furukawa
+ AS_IF([test "${TCL_THREADS}" = 1], [
+ CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
+ CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
+ LIBS=`echo $LIBS | sed s/-lpthreads//`
+ AS_IF([test "$GCC" = yes], [
+ LIBS="$LIBS -lpthread -lmach -lexc"
+ ], [
+ CFLAGS="$CFLAGS -pthread"
+ LDFLAGS="$LDFLAGS -pthread"
+ ])
+ ])
+ ;;
+ QNX-6*)
+ # QNX RTP
+ # This may work for all QNX, but it was only reported for v6.
+ SHLIB_CFLAGS="-fPIC"
+ SHLIB_LD="ld -Bshareable -x"
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ # dlopen is in -lc on QNX
+ DL_LIBS=""
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ SCO_SV-3.2*)
+ # Note, dlopen is available only on SCO 3.2.5 and greater. However,
+ # this test works, since "uname -s" was non-standard in 3.2.4 and
+ # below.
+ AS_IF([test "$GCC" = yes], [
+ SHLIB_CFLAGS="-fPIC -melf"
+ LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
+ ], [
+ SHLIB_CFLAGS="-Kpic -belf"
+ LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
+ ])
+ SHLIB_LD="ld -G"
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS=""
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ SINIX*5.4*)
+ SHLIB_CFLAGS="-K PIC"
+ SHLIB_LD='${CC} -G'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ SunOS-4*)
+ SHLIB_CFLAGS="-PIC"
+ SHLIB_LD="ld"
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+
+ # SunOS can't handle version numbers with dots in them in library
+ # specs, like -ltcl7.5, so use -ltcl75 instead. Also, it
+ # requires an extra version number at the end of .so file names.
+ # So, the library has to have a name like libtcl75.so.1.0
+
+ SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+ UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+ TCL_LIB_VERSIONS_OK=nodots
+ ;;
+ SunOS-5.[[0-6]])
+ # Careful to not let 5.10+ fall into this case
+
+ # Note: If _REENTRANT isn't defined, then Solaris
+ # won't define thread-safe library routines.
+
+ AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+ AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+ [Do we really want to follow the standard? Yes we do!])
+
+ SHLIB_CFLAGS="-KPIC"
+
+ # Note: need the LIBS below, otherwise Tk won't find Tcl's
+ # symbols when dynamically loaded into tclsh.
+
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ AS_IF([test "$GCC" = yes], [
+ SHLIB_LD='${CC} -shared'
+ CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ ], [
+ SHLIB_LD="/usr/ccs/bin/ld -G -z text"
+ CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ ])
+ ;;
+ SunOS-5*)
+ # Note: If _REENTRANT isn't defined, then Solaris
+ # won't define thread-safe library routines.
+
+ AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+ AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+ [Do we really want to follow the standard? Yes we do!])
+
+ SHLIB_CFLAGS="-KPIC"
+
+ # Check to enable 64-bit flags for compiler/linker
+ AS_IF([test "$do64bit" = yes], [
+ arch=`isainfo`
+ AS_IF([test "$arch" = "sparcv9 sparc"], [
+ AS_IF([test "$GCC" = yes], [
+ AS_IF([test "`${CC} -dumpversion | awk -F. '{print [$]1}'`" -lt 3], [
+ AC_MSG_WARN([64bit mode not supported with GCC < 3.2 on $system])
+ ], [
+ do64bit_ok=yes
+ CFLAGS="$CFLAGS -m64 -mcpu=v9"
+ LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
+ SHLIB_CFLAGS="-fPIC"
+ ])
+ ], [
+ do64bit_ok=yes
+ AS_IF([test "$do64bitVIS" = yes], [
+ CFLAGS="$CFLAGS -xarch=v9a"
+ LDFLAGS_ARCH="-xarch=v9a"
+ ], [
+ CFLAGS="$CFLAGS -xarch=v9"
+ LDFLAGS_ARCH="-xarch=v9"
+ ])
+ # Solaris 64 uses this as well
+ #LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
+ ])
+ ], [AS_IF([test "$arch" = "amd64 i386"], [
+ AS_IF([test "$GCC" = yes], [
+ case $system in
+ SunOS-5.1[[1-9]]*|SunOS-5.[[2-9]][[0-9]]*)
+ do64bit_ok=yes
+ CFLAGS="$CFLAGS -m64"
+ LDFLAGS="$LDFLAGS -m64";;
+ *)
+ AC_MSG_WARN([64bit mode not supported with GCC on $system]);;
+ esac
+ ], [
+ do64bit_ok=yes
+ case $system in
+ SunOS-5.1[[1-9]]*|SunOS-5.[[2-9]][[0-9]]*)
+ CFLAGS="$CFLAGS -m64"
+ LDFLAGS="$LDFLAGS -m64";;
+ *)
+ CFLAGS="$CFLAGS -xarch=amd64"
+ LDFLAGS="$LDFLAGS -xarch=amd64";;
+ esac
+ ])
+ ], [AC_MSG_WARN([64bit mode not supported for $arch])])])
+ ])
+
+ #--------------------------------------------------------------------
+ # On Solaris 5.x i386 with the sunpro compiler we need to link
+ # with sunmath to get floating point rounding control
+ #--------------------------------------------------------------------
+ AS_IF([test "$GCC" = yes],[use_sunmath=no],[
+ arch=`isainfo`
+ AC_MSG_CHECKING([whether to use -lsunmath for fp rounding control])
+ AS_IF([test "$arch" = "amd64 i386"], [
+ AC_MSG_RESULT([yes])
+ MATH_LIBS="-lsunmath $MATH_LIBS"
+ AC_CHECK_HEADER(sunmath.h)
+ use_sunmath=yes
+ ], [
+ AC_MSG_RESULT([no])
+ use_sunmath=no
+ ])
+ ])
+
+ # Note: need the LIBS below, otherwise Tk won't find Tcl's
+ # symbols when dynamically loaded into tclsh.
+
+ SHLIB_LD_LIBS='${LIBS}'
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ AS_IF([test "$GCC" = yes], [
+ SHLIB_LD='${CC} -shared'
+ CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+ AS_IF([test "$do64bit_ok" = yes], [
+ AS_IF([test "$arch" = "sparcv9 sparc"], [
+ # We need to specify -static-libgcc or we need to
+ # add the path to the sparv9 libgcc.
+ SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
+ # for finding sparcv9 libgcc, get the regular libgcc
+ # path, remove so name and append 'sparcv9'
+ #v9gcclibdir="`gcc -print-file-name=libgcc_s.so` | ..."
+ #CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
+ ], [AS_IF([test "$arch" = "amd64 i386"], [
+ SHLIB_LD="$SHLIB_LD -m64 -static-libgcc"
+ ])])
+ ])
+ ], [
+ AS_IF([test "$use_sunmath" = yes], [textmode=textoff],[textmode=text])
+ case $system in
+ SunOS-5.[[1-9]][[0-9]]*)
+ SHLIB_LD="\${CC} -G -z $textmode \${LDFLAGS}";;
+ *)
+ SHLIB_LD="/usr/ccs/bin/ld -G -z $textmode";;
+ esac
+ CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+ LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+ ])
+ ;;
+ UNIX_SV* | UnixWare-5*)
+ SHLIB_CFLAGS="-KPIC"
+ SHLIB_LD='${CC} -G'
+ SHLIB_LD_LIBS=""
+ SHLIB_SUFFIX=".so"
+ DL_OBJS="tclLoadDl.o"
+ DL_LIBS="-ldl"
+ # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
+ # that don't grok the -Bexport option. Test that it does.
+ AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -Wl,-Bexport"
+ AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
+ LDFLAGS=$hold_ldflags])
+ AS_IF([test $tcl_cv_ld_Bexport = yes], [
+ LDFLAGS="$LDFLAGS -Wl,-Bexport"
+ ])
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ ;;
+ esac
+
+ AS_IF([test "$do64bit" = yes -a "$do64bit_ok" = no], [
+ AC_MSG_WARN([64bit support being disabled -- don't know magic for this platform])
+ ])
+
+ AS_IF([test "$do64bit" = yes -a "$do64bit_ok" = yes], [
+ AC_DEFINE(TCL_CFG_DO64BIT, 1, [Is this a 64-bit build?])
+ ])
+
+dnl # Add any CPPFLAGS set in the environment to our CFLAGS, but delay doing so
+dnl # until the end of configure, as configure's compile and link tests use
+dnl # both CPPFLAGS and CFLAGS (unlike our compile and link) but configure's
+dnl # preprocessing tests use only CPPFLAGS.
+ AC_CONFIG_COMMANDS_PRE([CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""])
+
+ # Step 4: disable dynamic loading if requested via a command-line switch.
+
+ AC_ARG_ENABLE(load,
+ AC_HELP_STRING([--enable-load],
+ [allow dynamic loading and "load" command (default: on)]),
+ [tcl_ok=$enableval], [tcl_ok=yes])
+ AS_IF([test "$tcl_ok" = no], [DL_OBJS=""])
+
+ AS_IF([test "x$DL_OBJS" != x], [BUILD_DLTEST="\$(DLTEST_TARGETS)"], [
+ AC_MSG_WARN([Can't figure out how to do dynamic loading or shared libraries on this system.])
+ SHLIB_CFLAGS=""
+ SHLIB_LD=""
+ SHLIB_SUFFIX=""
+ DL_OBJS="tclLoadNone.o"
+ DL_LIBS=""
+ LDFLAGS="$LDFLAGS_ORIG"
+ CC_SEARCH_FLAGS=""
+ LD_SEARCH_FLAGS=""
+ BUILD_DLTEST=""
+ ])
+ LDFLAGS="$LDFLAGS $LDFLAGS_ARCH"
+
+ # If we're running gcc, then change the C flags for compiling shared
+ # libraries to the right flags for gcc, instead of those for the
+ # standard manufacturer compiler.
+
+ AS_IF([test "$DL_OBJS" != "tclLoadNone.o" -a "$GCC" = yes], [
+ case $system in
+ AIX-*) ;;
+ BSD/OS*) ;;
+ IRIX*) ;;
+ NetBSD-*|FreeBSD-*) ;;
+ Darwin-*) ;;
+ SCO_SV-3.2*) ;;
+ *) SHLIB_CFLAGS="-fPIC" ;;
+ esac])
+
+ AS_IF([test "$SHARED_LIB_SUFFIX" = ""], [
+ SHARED_LIB_SUFFIX='${VERSION}${SHLIB_SUFFIX}'])
+ AS_IF([test "$UNSHARED_LIB_SUFFIX" = ""], [
+ UNSHARED_LIB_SUFFIX='${VERSION}.a'])
+
+ AS_IF([test "${SHARED_BUILD}" = 1 -a "${SHLIB_SUFFIX}" != ""], [
+ LIB_SUFFIX=${SHARED_LIB_SUFFIX}
+ MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
+ INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE)'
+ ], [
+ LIB_SUFFIX=${UNSHARED_LIB_SUFFIX}
+
+ AS_IF([test "$RANLIB" = ""], [
+ MAKE_LIB='$(STLIB_LD) [$]@ ${OBJS}'
+ INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE)'
+ ], [
+ MAKE_LIB='${STLIB_LD} [$]@ ${OBJS} ; ${RANLIB} [$]@'
+ INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE) ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(LIB_FILE))'
+ ])
+ ])
+
+ # Stub lib does not depend on shared/static configuration
+ AS_IF([test "$RANLIB" = ""], [
+ MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS}'
+ INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
+ ], [
+ MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS} ; ${RANLIB} [$]@'
+ INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)"/$(STUB_LIB_FILE) ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(STUB_LIB_FILE))'
+ ])
+
+ # Define TCL_LIBS now that we know what DL_LIBS is.
+ # The trick here is that we don't want to change the value of TCL_LIBS if
+ # it is already set when tclConfig.sh had been loaded by Tk.
+ AS_IF([test "x${TCL_LIBS}" = x], [
+ TCL_LIBS="${DL_LIBS} ${LIBS} ${MATH_LIBS}"])
+ AC_SUBST(TCL_LIBS)
+
+ # FIXME: This subst was left in only because the TCL_DL_LIBS
+ # entry in tclConfig.sh uses it. It is not clear why someone
+ # would use TCL_DL_LIBS instead of TCL_LIBS.
+ AC_SUBST(DL_LIBS)
+
+ AC_SUBST(DL_OBJS)
+ AC_SUBST(PLAT_OBJS)
+ AC_SUBST(PLAT_SRCS)
+ AC_SUBST(LDAIX_SRC)
+ AC_SUBST(CFLAGS)
+ AC_SUBST(CFLAGS_DEBUG)
+ AC_SUBST(CFLAGS_OPTIMIZE)
+ AC_SUBST(CFLAGS_WARNING)
+
+ AC_SUBST(LDFLAGS)
+ AC_SUBST(LDFLAGS_DEBUG)
+ AC_SUBST(LDFLAGS_OPTIMIZE)
+ AC_SUBST(CC_SEARCH_FLAGS)
+ AC_SUBST(LD_SEARCH_FLAGS)
+
+ AC_SUBST(STLIB_LD)
+ AC_SUBST(SHLIB_LD)
+ AC_SUBST(TCL_SHLIB_LD_EXTRAS)
+ AC_SUBST(TK_SHLIB_LD_EXTRAS)
+ AC_SUBST(SHLIB_LD_LIBS)
+ AC_SUBST(SHLIB_CFLAGS)
+ AC_SUBST(SHLIB_SUFFIX)
+ AC_DEFINE_UNQUOTED(TCL_SHLIB_EXT,"${SHLIB_SUFFIX}",
+ [What is the default extension for shared libraries?])
+
+ AC_SUBST(MAKE_LIB)
+ AC_SUBST(MAKE_STUB_LIB)
+ AC_SUBST(INSTALL_LIB)
+ AC_SUBST(INSTALL_STUB_LIB)
+ AC_SUBST(RANLIB)
+])
+
+#--------------------------------------------------------------------
+# SC_SERIAL_PORT
+#
+# Determine which interface to use to talk to the serial port.
+# Note that #include lines must begin in leftmost column for
+# some compilers to recognize them as preprocessor directives,
+# and some build environments have stdin not pointing at a
+# pseudo-terminal (usually /dev/null instead.)
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Defines only one of the following vars:
+# HAVE_SYS_MODEM_H
+# USE_TERMIOS
+# USE_TERMIO
+# USE_SGTTY
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_SERIAL_PORT], [
+ AC_CHECK_HEADERS(sys/modem.h)
+ AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
+ AC_TRY_RUN([
+#include <termios.h>
+
+int main() {
+ struct termios t;
+ if (tcgetattr(0, &t) == 0) {
+ cfsetospeed(&t, 0);
+ t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+ return 0;
+ }
+ return 1;
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+ if test $tcl_cv_api_serial = no ; then
+ AC_TRY_RUN([
+#include <termio.h>
+
+int main() {
+ struct termio t;
+ if (ioctl(0, TCGETA, &t) == 0) {
+ t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+ return 0;
+ }
+ return 1;
+}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+ fi
+ if test $tcl_cv_api_serial = no ; then
+ AC_TRY_RUN([
+#include <sgtty.h>
+
+int main() {
+ struct sgttyb t;
+ if (ioctl(0, TIOCGETP, &t) == 0) {
+ t.sg_ospeed = 0;
+ t.sg_flags |= ODDP | EVENP | RAW;
+ return 0;
+ }
+ return 1;
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+ fi
+ if test $tcl_cv_api_serial = no ; then
+ AC_TRY_RUN([
+#include <termios.h>
+#include <errno.h>
+
+int main() {
+ struct termios t;
+ if (tcgetattr(0, &t) == 0
+ || errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+ cfsetospeed(&t, 0);
+ t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+ return 0;
+ }
+ return 1;
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+ fi
+ if test $tcl_cv_api_serial = no; then
+ AC_TRY_RUN([
+#include <termio.h>
+#include <errno.h>
+
+int main() {
+ struct termio t;
+ if (ioctl(0, TCGETA, &t) == 0
+ || errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+ t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+ return 0;
+ }
+ return 1;
+ }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+ fi
+ if test $tcl_cv_api_serial = no; then
+ AC_TRY_RUN([
+#include <sgtty.h>
+#include <errno.h>
+
+int main() {
+ struct sgttyb t;
+ if (ioctl(0, TIOCGETP, &t) == 0
+ || errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+ t.sg_ospeed = 0;
+ t.sg_flags |= ODDP | EVENP | RAW;
+ return 0;
+ }
+ return 1;
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
+ fi])
+ case $tcl_cv_api_serial in
+ termios) AC_DEFINE(USE_TERMIOS, 1, [Use the termios API for serial lines]);;
+ termio) AC_DEFINE(USE_TERMIO, 1, [Use the termio API for serial lines]);;
+ sgtty) AC_DEFINE(USE_SGTTY, 1, [Use the sgtty API for serial lines]);;
+ esac
+])
+
+#--------------------------------------------------------------------
+# SC_MISSING_POSIX_HEADERS
+#
+# Supply substitutes for missing POSIX header files. Special
+# notes:
+# - stdlib.h doesn't define strtol, strtoul, or
+# strtod insome versions of SunOS
+# - some versions of string.h don't declare procedures such
+# as strstr
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Defines some of the following vars:
+# NO_DIRENT_H
+# NO_VALUES_H
+# HAVE_LIMITS_H or NO_LIMITS_H
+# NO_STDLIB_H
+# NO_STRING_H
+# NO_SYS_WAIT_H
+# NO_DLFCN_H
+# HAVE_SYS_PARAM_H
+#
+# HAVE_STRING_H ?
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
+ AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
+ AC_TRY_LINK([#include <sys/types.h>
+#include <dirent.h>], [
+#ifndef _POSIX_SOURCE
+# ifdef __Lynx__
+ /*
+ * Generate compilation error to make the test fail: Lynx headers
+ * are only valid if really in the POSIX environment.
+ */
+
+ missing_procedure();
+# endif
+#endif
+DIR *d;
+struct dirent *entryPtr;
+char *p;
+d = opendir("foobar");
+entryPtr = readdir(d);
+p = entryPtr->d_name;
+closedir(d);
+], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
+
+ if test $tcl_cv_dirent_h = no; then
+ AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
+ fi
+
+ AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H, 1, [Do we have <float.h>?])])
+ AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H, 1, [Do we have <values.h>?])])
+ AC_CHECK_HEADER(limits.h,
+ [AC_DEFINE(HAVE_LIMITS_H, 1, [Do we have <limits.h>?])],
+ [AC_DEFINE(NO_LIMITS_H, 1, [Do we have <limits.h>?])])
+ AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
+ AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
+ AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
+ AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
+ if test $tcl_ok = 0; then
+ AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
+ fi
+ AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
+ AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
+ AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)
+
+ # See also memmove check below for a place where NO_STRING_H can be
+ # set and why.
+
+ if test $tcl_ok = 0; then
+ AC_DEFINE(NO_STRING_H, 1, [Do we have <string.h>?])
+ fi
+
+ AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H, 1, [Do we have <sys/wait.h>?])])
+ AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H, 1, [Do we have <dlfcn.h>?])])
+
+ # OS/390 lacks sys/param.h (and doesn't need it, by chance).
+ AC_HAVE_HEADERS(sys/param.h)
+])
+
+#--------------------------------------------------------------------
+# SC_PATH_X
+#
+# Locate the X11 header files and the X11 library archive. Try
+# the ac_path_x macro first, but if it doesn't find the X stuff
+# (e.g. because there's no xmkmf program) then check through
+# a list of possible directories. Under some conditions the
+# autoconf macro will return an include directory that contains
+# no include files, so double-check its result just to be safe.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Sets the the following vars:
+# XINCLUDES
+# XLIBSW
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_X], [
+ AC_PATH_X
+ not_really_there=""
+ if test "$no_x" = ""; then
+ if test "$x_includes" = ""; then
+ AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
+ else
+ if test ! -r $x_includes/X11/Intrinsic.h; then
+ not_really_there="yes"
+ fi
+ fi
+ fi
+ if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
+ AC_MSG_CHECKING([for X11 header files])
+ found_xincludes="no"
+ AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
+ if test "$found_xincludes" = "no"; then
+ dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
+ for i in $dirs ; do
+ if test -r $i/X11/Intrinsic.h; then
+ AC_MSG_RESULT([$i])
+ XINCLUDES=" -I$i"
+ found_xincludes="yes"
+ break
+ fi
+ done
+ fi
+ else
+ if test "$x_includes" != ""; then
+ XINCLUDES="-I$x_includes"
+ found_xincludes="yes"
+ fi
+ fi
+ if test found_xincludes = "no"; then
+ AC_MSG_RESULT([couldn't find any!])
+ fi
+
+ if test "$no_x" = yes; then
+ AC_MSG_CHECKING([for X11 libraries])
+ XLIBSW=nope
+ dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
+ for i in $dirs ; do
+ if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl -o -r $i/libX11.dylib; then
+ AC_MSG_RESULT([$i])
+ XLIBSW="-L$i -lX11"
+ x_libraries="$i"
+ break
+ fi
+ done
+ else
+ if test "$x_libraries" = ""; then
+ XLIBSW=-lX11
+ else
+ XLIBSW="-L$x_libraries -lX11"
+ fi
+ fi
+ if test "$XLIBSW" = nope ; then
+ AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
+ fi
+ if test "$XLIBSW" = nope ; then
+ AC_MSG_RESULT([could not find any! Using -lX11.])
+ XLIBSW=-lX11
+ fi
+])
+
+#--------------------------------------------------------------------
+# SC_BLOCKING_STYLE
+#
+# The statements below check for systems where POSIX-style
+# non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented.
+# On these systems (mostly older ones), use the old BSD-style
+# FIONBIO approach instead.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Defines some of the following vars:
+# HAVE_SYS_IOCTL_H
+# HAVE_SYS_FILIO_H
+# USE_FIONBIO
+# O_NONBLOCK
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_BLOCKING_STYLE], [
+ AC_CHECK_HEADERS(sys/ioctl.h)
+ AC_CHECK_HEADERS(sys/filio.h)
+ SC_CONFIG_SYSTEM
+ AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
+ case $system in
+ # There used to be code here to use FIONBIO under AIX. However, it
+ # was reported that FIONBIO doesn't work under AIX 3.2.5. Since
+ # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
+ # code (JO, 5/31/97).
+
+ OSF*)
+ AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
+ AC_MSG_RESULT([FIONBIO])
+ ;;
+ SunOS-4*)
+ AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
+ AC_MSG_RESULT([FIONBIO])
+ ;;
+ *)
+ AC_MSG_RESULT([O_NONBLOCK])
+ ;;
+ esac
+])
+
+#--------------------------------------------------------------------
+# SC_TIME_HANLDER
+#
+# Checks how the system deals with time.h, what time structures
+# are used on the system, and what fields the structures have.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Defines some of the following vars:
+# USE_DELTA_FOR_TZ
+# HAVE_TM_GMTOFF
+# HAVE_TM_TZADJ
+# HAVE_TIMEZONE_VAR
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TIME_HANDLER], [
+ AC_CHECK_HEADERS(sys/time.h)
+ AC_HEADER_TIME
+ AC_STRUCT_TIMEZONE
+
+ AC_CHECK_FUNCS(gmtime_r localtime_r mktime)
+
+ AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
+ AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
+ tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
+ if test $tcl_cv_member_tm_tzadj = yes ; then
+ AC_DEFINE(HAVE_TM_TZADJ, 1, [Should we use the tm_tzadj field of struct tm?])
+ fi
+
+ AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
+ AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
+ tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
+ if test $tcl_cv_member_tm_gmtoff = yes ; then
+ AC_DEFINE(HAVE_TM_GMTOFF, 1, [Should we use the tm_gmtoff field of struct tm?])
+ fi
+
+ #
+ # Its important to include time.h in this check, as some systems
+ # (like convex) have timezone functions, etc.
+ #
+ AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
+ AC_TRY_COMPILE([#include <time.h>],
+ [extern long timezone;
+ timezone += 1;
+ exit (0);],
+ tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
+ if test $tcl_cv_timezone_long = yes ; then
+ AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
+ else
+ #
+ # On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
+ #
+ AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
+ AC_TRY_COMPILE([#include <time.h>],
+ [extern time_t timezone;
+ timezone += 1;
+ exit (0);],
+ tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
+ if test $tcl_cv_timezone_time = yes ; then
+ AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
+ fi
+ fi
+])
+
+#--------------------------------------------------------------------
+# SC_BUGGY_STRTOD
+#
+# Under Solaris 2.4, strtod returns the wrong value for the
+# terminating character under some conditions. Check for this
+# and if the problem exists use a substitute procedure
+# "fixstrtod" (provided by Tcl) that corrects the error.
+# Also, on Compaq's Tru64 Unix 5.0,
+# strtod(" ") returns 0.0 instead of a failure to convert.
+#
+# Arguments:
+# none
+#
+# Results:
+#
+# Might defines some of the following vars:
+# strtod (=fixstrtod)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_BUGGY_STRTOD], [
+ AC_CHECK_FUNC(strtod, tcl_strtod=1, tcl_strtod=0)
+ if test "$tcl_strtod" = 1; then
+ AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
+ AC_TRY_RUN([
+ extern double strtod();
+ int main() {
+ char *infString="Inf", *nanString="NaN", *spaceString=" ";
+ char *term;
+ double value;
+ value = strtod(infString, &term);
+ if ((term != infString) && (term[-1] == 0)) {
+ exit(1);
+ }
+ value = strtod(nanString, &term);
+ if ((term != nanString) && (term[-1] == 0)) {
+ exit(1);
+ }
+ value = strtod(spaceString, &term);
+ if (term == (spaceString+1)) {
+ exit(1);
+ }
+ exit(0);
+ }], tcl_cv_strtod_buggy=ok, tcl_cv_strtod_buggy=buggy,
+ tcl_cv_strtod_buggy=buggy)])
+ if test "$tcl_cv_strtod_buggy" = buggy; then
+ AC_LIBOBJ([fixstrtod])
+ USE_COMPAT=1
+ AC_DEFINE(strtod, fixstrtod, [Do we want to use the strtod() in compat?])
+ fi
+ fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_LINK_LIBS
+#
+# Search for the libraries needed to link the Tcl shell.
+# Things like the math library (-lm) and socket stuff (-lsocket vs.
+# -lnsl) are dealt with here.
+#
+# Arguments:
+# None.
+#
+# Results:
+#
+# Might append to the following vars:
+# LIBS
+# MATH_LIBS
+#
+# Might define the following vars:
+# HAVE_NET_ERRNO_H
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_LINK_LIBS], [
+ #--------------------------------------------------------------------
+ # On a few very rare systems, all of the libm.a stuff is
+ # already in libc.a. Set compiler flags accordingly.
+ # Also, Linux requires the "ieee" library for math to work
+ # right (and it must appear before "-lm").
+ #--------------------------------------------------------------------
+
+ AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
+ AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])
+
+ #--------------------------------------------------------------------
+ # Interactive UNIX requires -linet instead of -lsocket, plus it
+ # needs net/errno.h to define the socket-related error codes.
+ #--------------------------------------------------------------------
+
+ AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
+ AC_CHECK_HEADER(net/errno.h, [
+ AC_DEFINE(HAVE_NET_ERRNO_H, 1, [Do we have <net/errno.h>?])])
+
+ #--------------------------------------------------------------------
+ # Check for the existence of the -lsocket and -lnsl libraries.
+ # The order here is important, so that they end up in the right
+ # order in the command line generated by make. Here are some
+ # special considerations:
[... 635 lines stripped ...]