make configure define _POSIX_C_SOURCE, _XOPEN_SOURCE and _XOPEN_SOURCE_EXTENDED to...

diff --git a/configure.ac b/configure.ac
index 368e2910d1002369ae288a25811f7ede730779a6..d4fafb097c3b58bdc7a00c3ef83e57229c437763 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -14,6 +14,10 @@ AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(top_srcdir)/VERSION'])
 MUTT_VERSION=`env HGROOT="$srcdir" sh "$srcdir/version.sh"`
 AC_DEFINE_UNQUOTED(MUTT_VERSION,"$MUTT_VERSION", [Full textual version string.])
 
+AC_DEFINE(_POSIX_C_SOURCE, 200809L, [Enable POSIX.1-2008 features.])
+AC_DEFINE(_XOPEN_SOURCE, 700, [Enable POSIX and XPG features.])
+AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Enable XPG Extensions.])
+
 AC_GNU_SOURCE
 
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