SDL_image: Add explicit 1 value to SAVE_PNG/JPG support

From 2f5c99c94e039c78b25490730531708112a3540d Mon Sep 17 00:00:00 2001
From: Sylvain <[EMAIL REDACTED]>
Date: Sat, 14 May 2022 16:19:27 +0200
Subject: [PATCH] Add explicit 1 value to SAVE_PNG/JPG support

---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index eeb75ba..35a9f1c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -639,12 +639,12 @@ if test x$enable_png = xyes -a x$have_png_hdr = xyes -a x$have_png_lib = xyes; t
     fi
 fi
 if test x$enable_save_png = xyes; then
-    AC_DEFINE([SDL_IMAGE_SAVE_PNG])
+    AC_DEFINE([SDL_IMAGE_SAVE_PNG], 1)
 else
     AC_DEFINE([SDL_IMAGE_SAVE_PNG], 0)
 fi
 if test x$enable_save_jpg = xyes; then
-    AC_DEFINE([SDL_IMAGE_SAVE_JPG])
+    AC_DEFINE([SDL_IMAGE_SAVE_JPG], 1)
 else
     AC_DEFINE([SDL_IMAGE_SAVE_JPG], 0)
 fi