common.mak

   1 #
   2 # common bits used by all libraries
   3 #
   4
   5 # first so "all" becomes default target
   6 all: all-yes
   7
   8 ifndef SUBDIR
   9 vpath %.c   $(SRC_DIR)
  10 vpath %.h   $(SRC_DIR)
  11 vpath %.S   $(SRC_DIR)
  12 vpath %.asm $(SRC_DIR)
  13 vpath %.v   $(SRC_DIR)
  14
  15 ifeq ($(SRC_DIR),$(SRC_PATH_BARE))
  16 BUILD_ROOT_REL = .
  17 else
  18 BUILD_ROOT_REL = ..
  19 endif
  20
  21 ifndef V
  22 Q      = @
  23 ECHO   = printf "$(1)\t%s\n" $(2)
  24 BRIEF  = CC AS YASM AR LD HOSTCC STRIP CP
  25 SILENT = DEPCC YASMDEP RM RANLIB
  26 MSG    = $@
  27 M      = @$(call ECHO,$(TAG),$@);
  28 $(foreach VAR,$(BRIEF), \
  29     $(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
  30 $(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
  31 $(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
  32 endif
  33
  34 ALLFFLIBS = avcodec avcore avdevice avfilter avformat avutil postproc swscale
  35
  36 IFLAGS   := -I$(BUILD_ROOT_REL) -I$(SRC_PATH)
  37 CPPFLAGS := $(IFLAGS) $(CPPFLAGS)
  38 CFLAGS   += $(ECFLAGS)
  39
  40 HOSTCFLAGS += $(IFLAGS)
  41
  42 %.o: %.c
  43         $(CCDEP)
  44         $(CC) $(CPPFLAGS) $(CFLAGS) $(CC_DEPFLAGS) -c $(CC_O) $<
  45
  46 %.o: %.S
  47         $(ASDEP)
  48         $(AS) $(CPPFLAGS) $(ASFLAGS) $(AS_DEPFLAGS) -c -o $@ $<
  49
  50 %.ho: %.h
  51         $(CC) $(CPPFLAGS) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
  52
  53 %$(EXESUF): %.c
  54
  55 %.ver: %.v
  56         $(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
  57
  58 %.c %.h: TAG = GEN
  59
  60 # Dummy rule to stop make trying to rebuild removed or renamed headers
  61 %.h:
  62         @:
  63
  64 install: install-libs install-headers
  65 install-libs: install-libs-yes
  66
  67 uninstall: uninstall-libs uninstall-headers
  68
  69 .PHONY: all depend dep *clean install* uninstall* examples testprogs
  70
  71 # Disable suffix rules.  Most of the builtin rules are suffix rules,
  72 # so this saves some time on slow systems.
  73 .SUFFIXES:
  74
  75 # Do not delete intermediate files from chains of implicit rules
  76 $(OBJS):
  77 endif
  78
  79 OBJS-$(HAVE_MMX) +=  $(MMX-OBJS-yes)
  80
  81 CFLAGS    += $(CFLAGS-yes)
  82 OBJS      += $(OBJS-yes)
  83 FFLIBS    := $(FFLIBS-yes) $(FFLIBS)
  84 TESTPROGS += $(TESTPROGS-yes)
  85
  86 FFEXTRALIBS := $(addprefix -l,$(addsuffix $(BUILDSUF),$(FFLIBS))) $(EXTRALIBS)
  87 FFLDFLAGS   := $(addprefix -L$(BUILD_ROOT)/lib,$(ALLFFLIBS)) $(LDFLAGS)
  88
  89 EXAMPLES  := $(addprefix $(SUBDIR),$(addsuffix -example$(EXESUF),$(EXAMPLES)))
  90 OBJS      := $(addprefix $(SUBDIR),$(sort $(OBJS)))
  91 TESTOBJS  := $(addprefix $(SUBDIR),$(TESTOBJS))
  92 TESTPROGS := $(addprefix $(SUBDIR),$(addsuffix -test$(EXESUF),$(TESTPROGS)))
  93 HOSTOBJS  := $(addprefix $(SUBDIR),$(addsuffix .o,$(HOSTPROGS)))
  94 HOSTPROGS := $(addprefix $(SUBDIR),$(addsuffix $(HOSTEXESUF),$(HOSTPROGS)))
  95
  96 DEP_LIBS := $(foreach NAME,$(FFLIBS),$(BUILD_ROOT_REL)/lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
  97
  98 ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
  99 SKIPHEADERS += $(addprefix $(ARCH)/,$(ARCH_HEADERS))
 100 SKIPHEADERS := $(addprefix $(SUBDIR),$(SKIPHEADERS-) $(SKIPHEADERS))
 101 checkheaders: $(filter-out $(SKIPHEADERS:.h=.ho),$(ALLHEADERS:.h=.ho))
 102
 103 $(HOSTOBJS): %.o: %.c
 104         $(HOSTCC) $(HOSTCFLAGS) -c -o $@ $<
 105
 106 $(HOSTPROGS): %$(HOSTEXESUF): %.o
 107         $(HOSTCC) $(HOSTLDFLAGS) -o $@ $< $(HOSTLIBS)
 108
 109 DEPS := $(OBJS:.o=.d)
 110 depend dep: $(DEPS)
 111
 112 CLEANSUFFIXES     = *.d *.o *~ *.ho *.map *.ver
 113 DISTCLEANSUFFIXES = *.pc
 114 LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a *.exp
 115
 116 -include $(wildcard $(DEPS))