mjpegtools: fix build

+2
+2
pkgs/tools/video/mjpegtools/default.nix
··· 18 buildInputs = [ libdv libjpeg libpng pkgconfig ] 19 ++ lib.optional (!withMinimal) [ gtk libX11 SDL SDL_gfx ]; 20 21 postPatch = '' 22 sed -i -e '/ARCHFLAGS=/s:=.*:=:' configure 23 '';
··· 18 buildInputs = [ libdv libjpeg libpng pkgconfig ] 19 ++ lib.optional (!withMinimal) [ gtk libX11 SDL SDL_gfx ]; 20 21 + NIX_CFLAGS_COMPILE = [ "-I${SDL}/include/SDL" ]; 22 + 23 postPatch = '' 24 sed -i -e '/ARCHFLAGS=/s:=.*:=:' configure 25 '';