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Posted to bugs@apr.apache.org by bu...@apache.org on 2021/01/17 09:14:48 UTC
[Bug 65087] New: IPv6 support not detected when compiling on macOS
with Xcode >= 12 due to implicit declaration of functions
https://bz.apache.org/bugzilla/show_bug.cgi?id=65087
Bug ID: 65087
Summary: IPv6 support not detected when compiling on macOS with
Xcode >= 12 due to implicit declaration of functions
Product: APR
Version: 1.7.0
Hardware: Macintosh
Status: NEW
Severity: major
Priority: P2
Component: APR
Assignee: bugs@apr.apache.org
Reporter: apache@ryandesign.com
Target Milestone: ---
When APR 1.7.0* is compiled with Xcode 12 or later on macOS 10.15 or later
(using MacPorts, though that should not matter), IPv6 support is not detected.
Output from ./configure includes:
checking for inet_addr... no
checking for inet_network... no
checking for working getnameinfo... no
checking if APR supports IPv6... no -- no getnameinfo
config.log says:
configure:22788: checking for inet_addr
configure:22814: /usr/bin/clang -c -pipe -Os
-Werror=implicit-function-declaration -arch x86_64 -I/opt/local/include
-DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -DDARWIN_10 conftest.c >&5
conftest.c:98:1: error: implicit declaration of function 'inet_addr' is invalid
in C99 [-Werror,-Wimplicit-function-declaration]
inet_addr("127.0.0.1");
^
1 error generated.
configure:22836: checking for inet_network
configure:22862: /usr/bin/clang -c -pipe -Os
-Werror=implicit-function-declaration -arch x86_64 -I/opt/local/include
-DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -DDARWIN_10 conftest.c >&5
conftest.c:98:1: error: implicit declaration of function 'inet_network' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
inet_network("127.0.0.1");
^
1 error generated.
configure:29708: checking for working getnameinfo
configure:29762: /usr/bin/clang -o conftest -pipe -Os
-Werror=implicit-function-declaration -arch x86_64 -I/opt/local/include
-DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -DDARWIN_10 -L/opt/local/lib
-Wl,-headerpad_max_install_names -arch x86_64 conftest.c -lpthread >&5
conftest.c:226:26: error: implicit declaration of function 'inet_addr' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
sa.sin_addr.s_addr = inet_addr("127.0.0.1");
^
1 error generated.
These configure checks fail because they don't include the necessary headers,
such as <arpa/inet.h>.
The configure checks are written with lines like the following:
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
This doesn't work because HAVE_ARPA_INET_H doesn't get defined until later on
in the configure script.
The consequence is that APR gets built without IPv6 support, which Apache users
have noticed and reported here:
https://lists.macports.org/pipermail/macports-users/2021-January/049311.html
*I know there were other implicit declaration of function problems in 1.7.0, at
least some of which have already been addressed by:
https://svn.apache.org/viewvc/apr/apr/trunk/configure.in?r1=1878362&r2=1882979
MacPorts uses a larger patch than that:
https://github.com/macports/macports-ports/blob/a14fc256193020cb92174919db733b10803cc3ca/devel/apr/files/patch-configure.diff
I have not personally attempted to verify whether all of our additional changes
are necessary but presumably the committer thought they were.
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[Bug 65087] IPv6 support not detected when compiling on macOS with
Xcode >= 12 due to implicit declaration of functions
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65087
--- Comment #2 from Ryan Schmidt <ap...@ryandesign.com> ---
Oh ok, thanks.
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[Bug 65087] IPv6 support not detected when compiling on macOS with
Xcode >= 12 due to implicit declaration of functions
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65087
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #3 from Yann Ylavic <yl...@gmail.com> ---
This was fixed in r1882982 and backported to 1.7.x (r1882981).
Will be in the next apr-1.7 release.
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[Bug 65087] IPv6 support not detected when compiling on macOS with
Xcode >= 12 due to implicit declaration of functions
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65087
Daniel J. Luke <dl...@geeklair.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |All
--- Comment #1 from Daniel J. Luke <dl...@geeklair.net> ---
I don't think this is the whole story - If I start a configure and pause it
#define HAVE_ARPA_INET_H 1 is in confdefs.h before the Networking Support or
IPv6 Networking support sections are run.
The test for getnameinfo, however, doesn't appear to include arpa/inet.h at
all, which is needed to get the definition of inet_addr
If I add it to the test (or force the test to pass by setting
ac_cv_working_getnameinfo), and rebuild httpd against the new apr, it starts up
just fine and listens on both IPv4 and IPv6. (If I don't rebuild httpd, I get
`AH00072: make_sock: could not bind to address 0.0.0.0:80`
This should fix things:
% diff apr_network.m4 apr_network.m4.orig
--- apr_network.m4.orig 2021-01-17 17:56:35.000000000 -0500
+++ apr_network.m4 2021-01-17 17:57:00.000000000 -0500
@@ -151,9 +151,6 @@
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
int main(void) {
struct sockaddr_in sa;
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[Bug 65087] IPv6 support not detected when compiling on macOS with
Xcode >= 12 due to implicit declaration of functions
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65087
Daniel J. Luke <dl...@geeklair.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dluke@geeklair.net
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