X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fextensions.m4;h=e71845f1d7c1def1bb47a875f3316e058e09f0be;hb=95d2aaeab5b8caa01c776d3afa097220cd8982b9;hp=6f34a8d35c04f921214bbefe62da6993dc875fd0;hpb=8a38d6958a3e36936829cb8b4074fb22296ed600;p=gnulib.git

diff --git a/m4/extensions.m4 b/m4/extensions.m4
index 6f34a8d35..e71845f1d 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -21,6 +21,10 @@ AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS], [
 [/* Enable extensions on Solaris.  */
 #ifndef __EXTENSIONS__
 # undef __EXTENSIONS__
+#endif
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
 #endif])
   AC_DEFINE([__EXTENSIONS__])
+  AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
 ])