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-rw-r--r--libextra/gl/m4/gnulib-common.m415
1 files changed, 14 insertions, 1 deletions
diff --git a/libextra/gl/m4/gnulib-common.m4 b/libextra/gl/m4/gnulib-common.m4
index 4c7ac30d0f..d0c8b66287 100644
--- a/libextra/gl/m4/gnulib-common.m4
+++ b/libextra/gl/m4/gnulib-common.m4
@@ -1,4 +1,4 @@
-# gnulib-common.m4 serial 20
+# gnulib-common.m4 serial 21
dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -102,6 +102,19 @@ AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS],
[Define to 1 when the gnulib module $1 should be tested.])
])
+# Test whether <features.h> exists.
+# Set HAVE_FEATURES_H.
+AC_DEFUN([gl_FEATURES_H],
+[
+ AC_CHECK_HEADERS_ONCE([features.h])
+ if test $ac_cv_header_features_h = yes; then
+ HAVE_FEATURES_H=1
+ else
+ HAVE_FEATURES_H=0
+ fi
+ AC_SUBST([HAVE_FEATURES_H])
+])
+
# m4_foreach_w
# is a backport of autoconf-2.59c's m4_foreach_w.
# Remove this macro when we can assume autoconf >= 2.60.