SDL_image: Make sure we distribute the mingw package support files

From 125e7c165a99a11499a65753bea7d35d48dcb81c Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 6 Jun 2022 20:02:54 -0700
Subject: [PATCH] Make sure we distribute the mingw package support files

---
 Makefile.am | 1 +
 Makefile.in | 1 +
 2 files changed, 2 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 1167af89..3cbcf884 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -51,6 +51,7 @@ EXTRA_DIST = \
 	IMG_xxx.c		\
 	LICENSE.txt 		\
 	Makefile.os2		\
+	mingw			\
 	README-emscripten.txt 	\
 	README.txt 		\
 	SDL2_image.spec		\
diff --git a/Makefile.in b/Makefile.in
index 5bd2efaa..ac931691 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -555,6 +555,7 @@ EXTRA_DIST = \
 	IMG_xxx.c		\
 	LICENSE.txt 		\
 	Makefile.os2		\
+	mingw			\
 	README-emscripten.txt 	\
 	README.txt 		\
 	SDL2_image.spec		\