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Added a configure test to check if pthread_rwlock_t is available.

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Define _GNU_SOURCE if needed. The fallback behaviou will only be
implemented if _GNU_SOURCE prooves to be insufficient on some
platforms.


git-svn-id: https://pupnp.svn.sourceforge.net/svnroot/pupnp/trunk@274 119443c7-1b9e-41f8-b6fc-b9c35fce742c
This commit is contained in:
Marcelo Roberto Jimenez 2007-12-24 03:39:50 +00:00
parent 34e18c2444
commit b66f2646c3
2 changed files with 28 additions and 0 deletions
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6
ChangeLog
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@ -2,6 +2,12 @@
Version 1.6.3
*******************************************************************************
2007-12-24 Marcelo Jimenez <mroberto(at)users.sourceforge.net>
* Added a configure test to check if pthread_rwlock_t is available.
Define _GNU_SOURCE if needed. The fallback behaviou will only be
implemented if _GNU_SOURCE prooves to be insufficient on some
platforms.
2007-12-17 Marcelo Jimenez <mroberto(at)users.sourceforge.net>
* Removed unused iasnprintf.{c,h} files.

22
configure.ac
View File

@ -328,9 +328,31 @@ AC_CHECK_FUNCS(ftime,, [AC_CHECK_LIB(compat, ftime)])
#
# Checks for POSIX Threads
#
echo "--------------------------- pthread stuff -------------------------------------"
ACX_PTHREAD(
[],
[AC_MSG_ERROR([POSIX threads are required to build this program])])
dnl # Determine if RW-mutex is available
echo "----------------------- pthread_rwlock_t stuff --------------------------------"
AC_MSG_CHECKING([if pthread_rwlock_t is available])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[#include <pthread.h>],
[pthread_rwlock_t *x;])],
[AC_DEFINE([UPNP_USE_RWLOCK], [1], [Use pthread_rwlock_t])
AC_MSG_RESULT([yes, supported without any options])],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[#define _GNU_SOURCE],
[#include <pthread.h>],
[pthread_rwlock_t *x;])],
[AC_DEFINE([UPNP_USE_RWLOCK], [1], [Use pthread_rwlock_t])
AC_DEFINE([_GNU_SOURCE], [], [_GNU_SOURCE needed for pthread_rwlock_t in this platform])
AC_MSG_RESULT([yes, definition of _GNU_SOURCE required])],
[AC_DEFINE([UPNP_USE_RWLOCK], [0], [Do not use pthread_rwlock_t])
AC_MSG_RESULT([no, needs to fallback to pthread_mutex])
AC_MSG_ERROR([pthread_rwlock_t not available])])])
echo "-------------------------------------------------------------------------------"
AC_CONFIG_FILES([