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Posted to commits@trafficserver.apache.org by jp...@apache.org on 2013/03/25 20:32:50 UTC
[2/2] git commit: TS-1742: Re-enable 16 byte compare and swap by
default
TS-1742: Re-enable 16 byte compare and swap by default
Project: http://git-wip-us.apache.org/repos/asf/trafficserver/repo
Commit: http://git-wip-us.apache.org/repos/asf/trafficserver/commit/70e10888
Tree: http://git-wip-us.apache.org/repos/asf/trafficserver/tree/70e10888
Diff: http://git-wip-us.apache.org/repos/asf/trafficserver/diff/70e10888
Branch: refs/heads/master
Commit: 70e10888506cdd41fa8eae86a2878cfb8a71f0fa
Parents: 18aadb0
Author: James Peach <jp...@apache.org>
Authored: Mon Mar 25 12:32:31 2013 -0700
Committer: James Peach <jp...@apache.org>
Committed: Mon Mar 25 12:32:31 2013 -0700
----------------------------------------------------------------------
configure.ac | 52 +++++++++++++++++++++++++---------------------------
1 files changed, 25 insertions(+), 27 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/70e10888/configure.ac
----------------------------------------------------------------------
diff --git a/configure.ac b/configure.ac
index 4561409..fe1648a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1108,33 +1108,31 @@ AC_SUBST(need_union_semun)
AC_MSG_CHECKING(for 128bit CAS support)
AC_LANG_PUSH([C++])
-dnl TS_TRY_COMPILE_NO_WARNING([],[
-dnl __int128_t x = 0;
-dnl __sync_bool_compare_and_swap(&x,0,10);
-dnl ], [
-dnl AC_MSG_RESULT(yes)
-dnl has_128bit_cas=1
-dnl ], [
-dnl dnl If 128bit CAS fails, try again with the -mcx16 option. GCC needs this;
-dnl dnl clang doesn't; icc is unknown but presumed sane.
-dnl __saved_CXXFLAGS="${CXXFLAGS}"
-dnl TS_ADDTO(CXXFLAGS, [-mcx16])
-dnl TS_TRY_COMPILE_NO_WARNING([],[
-dnl __int128_t x = 0;
-dnl __sync_bool_compare_and_swap(&x,0,10);
-dnl ], [
-dnl AC_MSG_RESULT(yes)
-dnl has_128bit_cas=1
-dnl dnl Keep CFLAGS and CXXFLAGS in sync.
-dnl TS_ADDTO(CFLAGS, [-mcx16])
-dnl ], [
-dnl AC_MSG_RESULT(no)
-dnl has_128bit_cas=0
-dnl CXXFLAGS="${__saved_CXXFLAGS}"
-dnl ])
-dnl ])
-
-has_128bit_cas=0
+TS_TRY_COMPILE_NO_WARNING([],[
+ __int128_t x = 0;
+ __sync_bool_compare_and_swap(&x,0,10);
+ ], [
+ AC_MSG_RESULT(yes)
+ has_128bit_cas=1
+ ], [
+ dnl If 128bit CAS fails, try again with the -mcx16 option. GCC needs this;
+ dnl clang doesn't; icc is unknown but presumed sane.
+ __saved_CXXFLAGS="${CXXFLAGS}"
+ TS_ADDTO(CXXFLAGS, [-mcx16])
+ TS_TRY_COMPILE_NO_WARNING([],[
+ __int128_t x = 0;
+ __sync_bool_compare_and_swap(&x,0,10);
+ ], [
+ AC_MSG_RESULT(yes)
+ has_128bit_cas=1
+ dnl Keep CFLAGS and CXXFLAGS in sync.
+ TS_ADDTO(CFLAGS, [-mcx16])
+ ], [
+ AC_MSG_RESULT(no)
+ has_128bit_cas=0
+ CXXFLAGS="${__saved_CXXFLAGS}"
+ ])
+])
AC_LANG_POP
AC_SUBST(has_128bit_cas)