Merged revisions 190092 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r190092 | tilghman | 2009-04-22 16:35:03 -0500 (Wed, 22 Apr 2009) | 7 lines
  
  Detect availability of pthread_rwlock_timedwrlock() before using it.
  (closes issue #14930)
   Reported by: tilghman
   Patches: 
         20090420__bug14930.diff.txt uploaded by tilghman (license 14)
   Tested by: mvanbaak, tilghman
........


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@190093 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 18 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 95ab0bb58..211df5e7b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -461,6 +461,24 @@ AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE_NP], 1, [Define to 1 if your system defi
 AC_MSG_RESULT(no)
 )
 
+AC_MSG_CHECKING(for pthread_rwlock_timedwrlock() in pthread.h)
+AC_LINK_IFELSE(
+  [AC_LANG_PROGRAM(
+    [#include <pthread.h>
+     #include <time.h>],
+    [pthread_rwlock_t foo; struct timespec bar; pthread_rwlock_timedwrlock(&foo, &bar)])
+  ],[
+    AC_MSG_RESULT(yes)
+    ac_cv_pthread_rwlock_timedwrlock="yes"
+  ],[
+    AC_MSG_RESULT(no)
+    ac_cv_pthread_rwlock_timedwrlock="no"
+  ]
+)
+if test "${ac_cv_pthread_rwlock_timedwrlock}" = "yes"; then
+  AC_DEFINE([HAVE_PTHREAD_RWLOCK_TIMEDWRLOCK], 1, [Define if your system has pthread_rwlock_timedwrlock()])
+fi
+
 AST_C_DEFINE_CHECK([PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP], [PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP], [pthread.h])
 
 #if test "${cross_compiling}" = "no";