proc: pull in ctype.h where needed

Fix the build warnings:

sig.c:227:5: warning: implicit declaration of function 'toupper' [-Wimplicit-function-declaration]
sig.c:231:3: warning: implicit declaration of function 'isdigit' [-Wimplicit-function-declaration]

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/proc/sig.c b/proc/sig.c
index b83e6458b5b3edca313c7c7a4b6ec91722875712..b427e01e8435a47c0081415f388970a4e63e5224 100644 (file)
--- a/proc/sig.c
+++ b/proc/sig.c
@@ -8,6 +8,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU Library General Public License for more details.
  */
+#include <ctype.h>
 #include <signal.h>
 #include <string.h>
 #include <stdio.h>