stepmania: fix build with system zlib

+3
+3
pkgs/by-name/st/stepmania/package.nix
··· 17 libvorbis, 18 udev, 19 xorg, 20 }: 21 22 stdenv.mkDerivation { ··· 61 libvorbis 62 udev 63 xorg.libXtst 64 ]; 65 66 cmakeFlags = [ 67 "-DWITH_SYSTEM_FFMPEG=1" 68 "-DWITH_SYSTEM_PNG=on" 69 "-DGTK2_GDKCONFIG_INCLUDE_DIR=${gtk2.out}/lib/gtk-2.0/include" 70 "-DGTK2_GLIBCONFIG_INCLUDE_DIR=${glib.out}/lib/glib-2.0/include" 71 ];
··· 17 libvorbis, 18 udev, 19 xorg, 20 + zlib, 21 }: 22 23 stdenv.mkDerivation { ··· 62 libvorbis 63 udev 64 xorg.libXtst 65 + zlib 66 ]; 67 68 cmakeFlags = [ 69 "-DWITH_SYSTEM_FFMPEG=1" 70 "-DWITH_SYSTEM_PNG=on" 71 + "-DWITH_SYSTEM_ZLIB=on" 72 "-DGTK2_GDKCONFIG_INCLUDE_DIR=${gtk2.out}/lib/gtk-2.0/include" 73 "-DGTK2_GLIBCONFIG_INCLUDE_DIR=${glib.out}/lib/glib-2.0/include" 74 ];