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#

# common bits used by all libraries

#

# first so "all" becomes default target

all: all-yes

ifndef SUBDIR

ifndef V

Q      = @

ECHO   = printf "$(1)\t%s\n" $(2)

BRIEF  = CC CXX HOSTCC HOSTLD AS YASM AR LD STRIP CP

SILENT = DEPCC DEPHOSTCC DEPAS DEPYASM RANLIB RM

MSG    = $@

M      = @$(call ECHO,$(TAG),$@);

$(foreach VAR,$(BRIEF), \

    $(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))

$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))

$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))

endif

ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample

# NASM requires -I path terminated with /

IFLAGS     := -I. -I$(SRC_PATH)/

CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)

CFLAGS     += $(ECFLAGS)

CCFLAGS     = $(CPPFLAGS) $(CFLAGS)

ASFLAGS    := $(CPPFLAGS) $(ASFLAGS)

CXXFLAGS   += $(CPPFLAGS) $(CFLAGS)

YASMFLAGS  += $(IFLAGS:%=%/) -Pconfig.asm

HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)

LDFLAGS    := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)

define COMPILE

       $(call $(1)DEP,$(1))

       $($(1)) $($(1)FLAGS) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $<

endef

COMPILE_C = $(call COMPILE,CC)

COMPILE_CXX = $(call COMPILE,CXX)

COMPILE_S = $(call COMPILE,AS)

%.o: %.c

	$(COMPILE_C)

%.o: %.cpp

	$(COMPILE_CXX)

%.s: %.c

	$(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<

%.o: %.S

	$(COMPILE_S)

%.i: %.c

	$(CC) $(CCFLAGS) $(CC_E) $<

%.h.c:

	$(Q)echo '#include "$*.h"' >$@

%.ver: %.v

	$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@

%.c %.h: TAG = GEN

# Dummy rule to stop make trying to rebuild removed or renamed headers

%.h:

	@:

# Disable suffix rules.  Most of the builtin rules are suffix rules,

# so this saves some time on slow systems.

.SUFFIXES:

# Do not delete intermediate files from chains of implicit rules

$(OBJS):

endif

include $(SRC_PATH)/arch.mak

OBJS      += $(OBJS-yes)

FFLIBS    := $(FFLIBS-yes) $(FFLIBS)

TESTPROGS += $(TESTPROGS-yes)

LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))

FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)

EXAMPLES  := $(EXAMPLES:%=$(SUBDIR)%-example$(EXESUF))

OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))

TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)

TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(EXESUF))

HOSTOBJS  := $(HOSTPROGS:%=$(SUBDIR)%.o)

HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))

TOOLS     += $(TOOLS-yes)

TOOLOBJS  := $(TOOLS:%=tools/%.o)

TOOLS     := $(TOOLS:%=tools/%$(EXESUF))

HEADERS   += $(HEADERS-yes)

PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))

DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))

SRC_DIR    := $(SRC_PATH)/lib$(NAME)

ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))

SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)

SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)

HOBJS        = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))

checkheaders: $(HOBJS)

.SECONDARY:   $(HOBJS:.o=.c)

alltools: $(TOOLS)

$(HOSTOBJS): %.o: %.c

	$(call COMPILE,HOSTCC)

$(HOSTPROGS): %$(HOSTEXESUF): %.o

	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $< $(HOSTLIBS)

$(OBJS):     | $(sort $(dir $(OBJS)))

$(HOBJS):    | $(sort $(dir $(HOBJS)))

$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))

$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))

$(TOOLOBJS): | tools

OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(TESTOBJS))

CLEANSUFFIXES     = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda

DISTCLEANSUFFIXES = *.pc

LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a

define RULES

clean::

	$(RM) $(OBJS) $(OBJS:.o=.d)

	$(RM) $(HOSTPROGS)

	$(RM) $(TOOLS)

endef

$(eval $(RULES))

-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d))