Fixed compile error about gdImageColorResolve (#14426, #15000).

diff --git a/ext/gd/php_gd.h b/ext/gd/php_gd.h
index b2ac0c256949b2355ba02061e25250f5ce5be0bf..ae84710d8d9973bc20efb0feaf3a5249a2ea68ba 100644 (file)
--- a/ext/gd/php_gd.h
+++ b/ext/gd/php_gd.h
@@ -66,7 +66,7 @@ PHP_MINIT_FUNCTION(gd);
 PHP_MSHUTDOWN_FUNCTION(gd);
 
 #ifndef HAVE_GDIMAGECOLORRESOLVE
-static int gdImageColorResolve(gdImagePtr, int, int, int);
+extern int gdImageColorResolve(gdImagePtr, int, int, int);
 #endif
 PHP_FUNCTION(imagearc);
 PHP_FUNCTION(imagechar);