jerenkrantz 01/05/31 19:58:32
Modified: . configure.in
Log:
Detect the wacky Linux-specific condition where pthread_rwlock_init is
defined, but the declaration of pthread_rwlock_t requires extra #defines.
Revision Changes Path
1.311 +25 -0 apr/configure.in
Index: configure.in
===================================================================
RCS file: /home/cvs/apr/configure.in,v
retrieving revision 1.310
retrieving revision 1.311
diff -u -r1.310 -r1.311
--- configure.in 2001/05/31 03:29:51 1.310
+++ configure.in 2001/06/01 02:58:31 1.311
@@ -281,6 +281,31 @@
APR_CHECK_PTHREAD_GETSPECIFIC_TWO_ARGS
APR_CHECK_PTHREAD_ATTR_GETDETACHSTATE_ONE_ARG
AC_CHECK_FUNCS(pthread_key_delete pthread_rwlock_init)
+
+ if test "$ac_cv_func_pthread_rwlock_init" = "yes"; then
+ dnl #----------------------------- Checking for pthread_rwlock_t
+ dnl # Linux is silly as it has pthread_rwlock_init defined
+ dnl # but keeps the pthread_rwlock_t structure hidden unless
+ dnl # special things are defined.
+ AC_CACHE_CHECK([for pthread_rwlock_t], ac_cv_struct_pthread_rw,
+ [AC_TRY_COMPILE([#include <sys/types.h>
+ #include <pthread.h>],
+ [pthread_rwlock_t rwlock=PTHREAD_RWLOCK_INITIALIZER;],
+ ac_cv_struct_pthread_rw=yes, ac_cv_struct_pthread_rw=no)])
+ if test "$ac_cv_struct_pthread_rw" = "no"; then
+ AC_TRY_COMPILE([#define _XOPEN_SOURCE 500
+ #define _BSD_SOURCE
+ #define _SVID_SOURCE
+ #include <sys/types.h>
+ #include <pthread.h>],
+ [pthread_rwlock_t rwlock=PTHREAD_RWLOCK_INITIALIZER;],
+ ac_cv_struct_pthread_rw=yes, ac_cv_struct_pthread_rw=no)
+ if test "$ac_cv_struct_pthread_rw" = "yes"; then
+ APR_ADDTO(CPPFLAGS, [-D_XOPEN_SOURCE=500 -D_BSD_SOURCE])
+ APR_ADDTO(CPPFLAGS, [-D_SVID_SOURCE])
+ fi
+ fi
+ fi
fi
fi
