LIBPNG := contrib/install/lib/libpng.a

	SDLCONFIG := $(shell pwd)/contrib/install/bin/sdl-config

	NEED_PCRE = YesPlease

	BUILD_PCRE = YesPlease

		NEED_FREETYPE = YesPlease
		NEED_SDL = YesPlease
		NEED_SDLIMAGE = YesPlease
		NEED_LIBPNG = YesPlease
		NEED_ZLIB = YesPlease

		EXTRA_LIBS += -lmingw32 -lgdi32 -lwinmm contrib/install/lib/libSDLmain.a -mwindows
		BUILD_FREETYPE = YesPlease
		BUILD_SDL = YesPlease
		BUILD_SDLIMAGE = YesPlease
		BUILD_LIBPNG = YesPlease
		BUILD_ZLIB = YesPlease

	NEED_PCRE = YesPlease

	BUILD_PCRE = YesPlease

ifdef BUILD_SDL
INCLUDES_L += -Icontrib/install/include/SDL
endif
ifdef BUILD_FREETYPE
INCLUDES_L += -Icontrib/install/include/freetype2
endif

else # pkg-config
# Ugh, pkg-config isn't available. We're probably on MinGW, Cygwin,
# or some other stupid platform. We've got to assume that the
# libraries are either in the standard paths or are in /opt/<lib>/.
#
PNG_INCLUDE := -I/opt/libpng/include
PNG_CFLAGS  :=
PNG_LDFLAGS := -L/opt/libpng/lib -lpng -lz

LIB += $(SDL_LDFLAGS) $(PNG_LDFLAGS) $(FREETYPE_LDFLAGS)

FREETYPE_INCLUDE := -I/opt/freetype/include -Icontrib/install/include/freetype2
FREETYPE_CFLAGS  :=
FREETYPE_LDFLAGS := -L/opt/freetype/lib -lfreetype
ifndef NO_SDLCONFIG
SDLCONFIG := $(which sdl-config)
ifeq ($(SDLCONFIG),)
SDLCONFIG := $(shell pwd)/contrib/install/bin/sdl-config
endif
endif
ifneq ($(SDLCONFIG),)
# sdl-config is our second best bet...
#
SDL_INCLUDE := $(shell $(SDLCONFIG) --cflags | tr ' ' '\n' | grep ^[-]I | tr '\n' ' ')
SDL_CFLAGS  := $(shell $(SDLCONFIG) --cflags | tr ' ' '\n' | grep -v ^[-]I | tr '\n' ' ')
SDL_LDFLAGS := $(shell $(SDLCONFIG) --libs)
else # sdl-config
# Fine, we have to make some REALLY ugly assumptions...
#
SDL_INCLUDE := -I/opt/sdl/include/SDL
SDL_CFLAGS  :=
SDL_LDFLAGS := -L/opt/sdl/lib -lSDL -lSDLmain
endif # sdl-config

LIB += $(SDL_LDFLAGS) -lSDL_image $(PNG_LDFLAGS) $(FREETYPE_LDFLAGS) -lz

ifdef NEED_PCRE

ifdef BUILD_PCRE

ifdef NEED_PCRE

ifdef BUILD_PCRE

LIB += $(LIBPCRE)

ifdef NEED_FREETYPE

ifdef BUILD_FREETYPE

LIB += $(LIBFREETYPE)

ifdef NEED_SDL

ifdef BUILD_SDLIMAGE
CONTRIB_DEPENDS += $(LIBSDLIMAGE)
LIB += $(LIBSDLIMAGE)
endif
ifdef BUILD_SDL

LIB += $(LIBSDL)

ifdef NEED_SDLIMAGE
CONTRIB_DEPENDS += $(LIBSDLIMAGE)
endif
ifdef NEED_LIBPNG

ifdef BUILD_LIBPNG

LIB += $(LIBPNG)

ifdef NEED_ZLIB

ifdef BUILD_ZLIB

LIB += $(LIBZ)

LIB += $(EXTRA_LIBS)

$(LIBPNG): .contrib-ok
	+@$(MAKE) -C contrib libpng
libpng: $(LIBPNG)