setenv: restore to working order

[pspp] / build-aux / link-warning.h

diff --git a/build-aux/link-warning.h b/build-aux/link-warning.h
index cd01b50e9e769d9d1124461419e228c136127360..27abfd95a69a6bf8a41c49fb8944341e38edf869 100644 (file)
--- a/build-aux/link-warning.h
+++ b/build-aux/link-warning.h
@@ -15,6 +15,10 @@
    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#if @HAVE_FEATURES_H@
+# include <features.h> /* for __GLIBC__, __UCLIBC__ */
+#endif
+
 /* GL_LINK_WARNING("literal string") arranges to emit the literal string as
    a linker warning on most glibc systems.
    We use a linker warning rather than a preprocessor warning, because