Fix a bulk load of implicit declaration on string functions.

graphics/xsane/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.40 2015/04/21 18:45:27 sthen Exp $
+# $OpenBSD: Makefile,v 1.41 2015/05/02 12:51:28 ajacoutot Exp $
 
 COMMENT=	scanner frontend for SANE
 
 DISTNAME=	xsane-0.999
-REVISION=	1
+REVISION=	2
 
 CATEGORIES=	graphics
 

graphics/xsane/patches/patch-lib_getopt_c

@@ -0,0 +1,19 @@
+$OpenBSD: patch-lib_getopt_c,v 1.1 2015/05/02 12:51:28 ajacoutot Exp $
+
+warning: implicit declaration of function 'getpid'
+warning: implicit declaration of function 'strlen'
+warning: implicit declaration of function 'strcmp'
+warning: implicit declaration of function 'strncmp'
+
+--- lib/getopt.c.orig	Wed Mar  3 00:14:45 1999
++++ lib/getopt.c	Sat May  2 14:49:21 2015
+@@ -30,6 +30,9 @@
+ #include <config.h>
+ #endif
+ 
++#include <string.h>
++#include <unistd.h>
++
+ #if !defined (__STDC__) || !__STDC__
+ /* This is a separate conditional since some stdc systems
+    reject `defined (const)'.  */