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-rw-r--r--src/aclocal.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/src/aclocal.m4 b/src/aclocal.m4
index dbb7db2..00db022 100644
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -53,6 +53,8 @@ AC_SUBST(EXTRA_FILES)
dnl Consider using AC_USE_SYSTEM_EXTENSIONS when we require autoconf
dnl 2.59c or later, but be sure to test on Solaris first.
AC_DEFINE([_GNU_SOURCE], 1, [Define to enable extensions in glibc])
+AC_DEFINE([__STDC_WANT_LIB_EXT1__], 1, [Define to enable C11 extensions])
+
WITH_CC dnl
AC_REQUIRE_CPP
if test -z "$LD" ; then LD=$CC; fi