Fix GD flag...

Author: Girgias

ext/gd/config.m4

@@ -150,7 +150,7 @@ if test "$PHP_GD" != "no"; then
                   libgd/gd_bmp.c libgd/gd_tga.c"
 
 dnl Disable strict prototypes as GD takes advantages of variadic function signatures for function pointers.
-    AX_CHECK_COMPILE_FLAG([-Wno-strict-prototypes], GC_CFLAGS="$GD_CFLAGS -Wnostrict-prototypes", , [-Werror])
+    AX_CHECK_COMPILE_FLAG([-Wno-strict-prototypes], GC_CFLAGS="$GD_CFLAGS -Wno-strict-prototypes", , [-Werror])
 
 dnl check for fabsf and floorf which are available since C99
     AC_CHECK_FUNCS(fabsf floorf)