c070e64bd4
This patch contains changes to the libSDL port that were needed to build the Hatari emulator using cmake. - Since SDL programs cannot use the posix library (because sdl's init function needs a way to get hold of the Genode env), the sdl_main library must be used instead of the posix library. The sdl_main code implements the Libc::Component::construct function for the final binary. However, 3rd-party build systems are not aware of this Genode-specific peculiarity and thereby create binaries that leave libsdl uninitialized. This patch adds the sdl_main to libsdl by default and thereby eliminates the need for specifying the extra sdl_main library. Customizing the Libc::Component::construct is still possible by overriding the library-provided implementation in the main program. - A few missing config definitions are added to compile Hatari successfully. - Avoid reliance on the include/SDL convention in SDL_config.h - Cmake relies on the upper-case naming of the library with no way to tweak this convention. So we install an symlink named `SDL.lib.so` when installing the library into the <build-dir>/bin/ directory. Fixes #161
101 lines
2.2 KiB
Makefile
101 lines
2.2 KiB
Makefile
SDL_PORT_DIR := $(call select_from_ports,sdl)
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SDL_DIR := $(SDL_PORT_DIR)/src/lib/sdl
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# build shared object
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SHARED_LIB = yes
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# use default warning level for 3rd-party code
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CC_WARN =
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INC_DIR += $(SDL_PORT_DIR)/include
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INC_DIR += $(SDL_PORT_DIR)/include/SDL
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#
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# In case we use the depot add the location
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# to the global include path.
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#
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ifeq ($(CONTRIB),)
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REP_INC_DIR += include/SDL
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endif
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# backends
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SRC_CC = video/SDL_genode_fb_video.cc \
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video/SDL_genode_fb_events.cc \
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audio/SDL_genodeaudio.cc \
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loadso/SDL_loadso.cc
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INC_DIR += $(REP_DIR)/include/SDL \
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$(REP_DIR)/src/lib/sdl \
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$(REP_DIR)/src/lib/sdl/thread \
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$(REP_DIR)/src/lib/sdl/video
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# main files
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SRC_C = SDL.c \
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SDL_error.c \
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SDL_fatal.c
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INC_DIR += $(REP_DIR)/src/lib/sdl
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# stdlib files
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SRC_C += stdlib/SDL_getenv.c \
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stdlib/SDL_string.h
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# thread subsystem
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SRC_C += thread/SDL_thread.c \
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thread/pthread/SDL_systhread.c \
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thread/generic/SDL_syscond.c \
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thread/generic/SDL_sysmutex.c \
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thread/pthread/SDL_syssem.c
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INC_DIR += $(SDL_DIR)/src/thread
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# cpuinfo subsystem
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SRC_C += cpuinfo/SDL_cpuinfo.c
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# timer subsystem
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SRC_C += timer/SDL_timer.c \
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timer/unix/SDL_systimer.c
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INC_DIR += $(SDL_DIR)/src/timer
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# video subsystem
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SRC_C += $(addprefix video/,$(notdir $(wildcard $(SDL_DIR)/src/video/*.c)))
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INC_DIR += $(SDL_DIR)/src/video
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# event subsystem
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SRC_C += $(addprefix events/,$(notdir $(wildcard $(SDL_DIR)/src/events/*.c)))
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INC_DIR += $(SDL_DIR)/src/events
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# audio subsystem
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SRC_C += $(addprefix audio/,$(notdir $(wildcard $(SDL_DIR)/src/audio/*.c)))
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INC_DIR += $(SDL_DIR)/src/audio
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# file I/O subsystem
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SRC_C += file/SDL_rwops.c
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# joystick subsystem
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SRC_C += joystick/SDL_joystick.c \
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joystick/dummy/SDL_sysjoystick.c
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INC_DIR += $(SDL_DIR)/src/joystick
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# cdrom subsystem
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SRC_C += cdrom/SDL_cdrom.c \
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cdrom/dummy/SDL_syscdrom.c
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INC_DIR += $(SDL_DIR)/src/cdrom
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SRC_CC += sdl_main.cc
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# we need libc
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LIBS = libc mesa_api
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# backend path
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vpath % $(REP_DIR)/src/lib/sdl
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vpath % $(SDL_DIR)/src
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CC_CXX_WARN_STRICT =
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$(INSTALL_DIR)/sdl.lib.so: $(INSTALL_DIR)/SDL.lib.so
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$(INSTALL_DIR)/SDL.lib.so:
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$(VERBOSE)ln -sf sdl.lib.so $@
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