Opt-in to modern OS features on Solaris, to get file descriptor passing

Surely it's broken to define SCM_RIGHTS but not the necessary structs to
do something useful with it, but whatever.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=33465
Reviewed-by: Will Thompson <will.thompson@collabora.co.uk>

diff --git a/configure.ac b/configure.ac
index a768070..a4c2185 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1231,6 +1231,9 @@ case $host_os in
     solaris*)
         # Solaris' C library apparently needs these runes to be threadsafe...
         CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT"
+        # ... and this opt-in to get file descriptor passing support
+        CFLAGS="$CFLAGS -D_XOPEN_SOURCE=500"
+        ;;
 esac
 
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