mescc: Add proper includes.

[mes.git] / lib / m4.c

diff --git a/lib/m4.c b/lib/m4.c
index d37f0c15ad1f2a23bb34f0cbddd067a490f6465f..b9c79ac0667ff5d45b3740ee13cf91cfae04080f 100644 (file)
--- a/lib/m4.c
+++ b/lib/m4.c
@@ -18,6 +18,8 @@
  * along with Mes.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <ctype.h>
+
 int
 abort ()
 {