nixpkgs/pkgs/development/libraries/SDL/find-headers.patch

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diff -ru3 SDL-1.2.15/sdl-config.in SDL-1.2.15-new/sdl-config.in
--- SDL-1.2.15/sdl-config.in 2012-01-19 10:30:06.000000000 +0400
+++ SDL-1.2.15-new/sdl-config.in 2016-08-22 05:32:52.716397920 +0300
@@ -42,7 +42,11 @@
echo @SDL_VERSION@
;;
--cflags)
- echo -I@includedir@/SDL @SDL_CFLAGS@
+ SDL_CFLAGS=""
+ for i in @includedir@/SDL $SDL_PATH; do
+ SDL_CFLAGS="$SDL_CFLAGS -I$i"
+ done
+ echo $SDL_CFLAGS @SDL_CFLAGS@
;;
@ENABLE_SHARED_TRUE@ --libs)
@ENABLE_SHARED_TRUE@ echo -L@libdir@ @SDL_RLD_FLAGS@ @SDL_LIBS@