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https://github.com/FFmpeg/FFmpeg.git
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0680c40a25
The presence of the .SECONDARY directive caused thing to not always be correctly rebuilt. Mentioning the object files explicitly as targets gives the desired result of make not deleting them without unpleasant side-effects. Originally committed as revision 22422 to svn://svn.ffmpeg.org/ffmpeg/trunk
110 lines
3.0 KiB
Makefile
110 lines
3.0 KiB
Makefile
#
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# common bits used by all libraries
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#
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# first so "all" becomes default target
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all: all-yes
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ifndef SUBDIR
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vpath %.c $(SRC_DIR)
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vpath %.h $(SRC_DIR)
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vpath %.S $(SRC_DIR)
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vpath %.asm $(SRC_DIR)
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vpath %.v $(SRC_DIR)
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ifeq ($(SRC_DIR),$(SRC_PATH_BARE))
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BUILD_ROOT_REL = .
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else
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BUILD_ROOT_REL = ..
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endif
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ifndef V
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Q = @
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ECHO = printf "$(1)\t%s\n" $(2)
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BRIEF = CC AS YASM AR LD HOSTCC RANLIB STRIP CP
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SILENT = DEPCC YASMDEP RM
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MSG = $@
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M = @$(call ECHO,$(MSG),$@);
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$(foreach VAR,$(BRIEF), \
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$(eval $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
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$(foreach VAR,$(SILENT),$(eval $(VAR) = @$($(VAR))))
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$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
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endif
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ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale
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CPPFLAGS := -I$(BUILD_ROOT_REL) -I$(SRC_PATH) $(CPPFLAGS)
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CFLAGS += $(ECFLAGS)
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%.o: %.c
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$(CCDEP)
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$(CC) $(CPPFLAGS) $(CFLAGS) $(CC_DEPFLAGS) -c $(CC_O) $<
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%.o: %.S
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$(ASDEP)
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$(AS) $(CPPFLAGS) $(ASFLAGS) $(AS_DEPFLAGS) -c -o $@ $<
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%.ho: %.h
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$(CC) $(CPPFLAGS) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
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%$(EXESUF): %.c
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%.ver: %.v
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$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
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%.c %.h: MSG = GEN
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install: install-libs install-headers
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install-libs: install-libs-yes
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uninstall: uninstall-libs uninstall-headers
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.PHONY: all depend dep *clean install* uninstall* examples testprogs
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# Disable suffix rules. Most of the builtin rules are suffix rules,
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# so this saves some time on slow systems.
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.SUFFIXES:
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# Do not delete intermediate files from chains of implicit rules
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$(OBJS):
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endif
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OBJS-$(HAVE_MMX) += $(MMX-OBJS-yes)
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CFLAGS += $(CFLAGS-yes)
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OBJS += $(OBJS-yes)
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FFLIBS := $(FFLIBS-yes) $(FFLIBS)
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TESTPROGS += $(TESTPROGS-yes)
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FFEXTRALIBS := $(addprefix -l,$(addsuffix $(BUILDSUF),$(FFLIBS))) $(EXTRALIBS)
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FFLDFLAGS := $(addprefix -L$(BUILD_ROOT)/lib,$(ALLFFLIBS)) $(LDFLAGS)
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EXAMPLES := $(addprefix $(SUBDIR),$(addsuffix -example$(EXESUF),$(EXAMPLES)))
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OBJS := $(addprefix $(SUBDIR),$(sort $(OBJS)))
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TESTOBJS := $(addprefix $(SUBDIR),$(TESTOBJS))
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TESTPROGS := $(addprefix $(SUBDIR),$(addsuffix -test$(EXESUF),$(TESTPROGS)))
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HOSTOBJS := $(addprefix $(SUBDIR),$(addsuffix .o,$(HOSTPROGS)))
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HOSTPROGS := $(addprefix $(SUBDIR),$(addsuffix $(HOSTEXESUF),$(HOSTPROGS)))
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DEP_LIBS := $(foreach NAME,$(FFLIBS),$(BUILD_ROOT_REL)/lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
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ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
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SKIPHEADERS += $(addprefix $(ARCH)/,$(ARCH_HEADERS))
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SKIPHEADERS := $(addprefix $(SUBDIR),$(SKIPHEADERS-) $(SKIPHEADERS))
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checkheaders: $(filter-out $(SKIPHEADERS:.h=.ho),$(ALLHEADERS:.h=.ho))
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$(HOSTOBJS): %.o: %.c
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$(HOSTCC) $(HOSTCFLAGS) -c -o $@ $<
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$(HOSTPROGS): %$(HOSTEXESUF): %.o
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$(HOSTCC) $(HOSTLDFLAGS) -o $@ $< $(HOSTLIBS)
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DEPS := $(OBJS:.o=.d)
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depend dep: $(DEPS)
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CLEANSUFFIXES = *.d *.o *~ *.ho *.map *.ver
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DISTCLEANSUFFIXES = *.pc
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LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a *.exp
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-include $(wildcard $(DEPS))
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