platform.mk 3.45 KB
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# Platform-specific stuff
# Don't touch this unless you're changing the way targets are compiled
# You have been warned

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CCLD := $(CC)
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CGO := go tool cgo
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GO := go
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CAT := cat
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LIBEXT := .so
MODEXT := $(LIBEXT)
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AREXT  := .a
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LIBTYPE := shared
MODTYPE := shared
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ARTYPE  := static
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BINEXT :=
PLATFORM = Linux
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ARCH := $(word 1, $(subst -, ,$(shell $(CC) -dumpmachine)))
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ifeq ($(OS),Windows_NT)
	PLATFORM := Windows
	RM := del
	LN := link
	LIBEXT := .lib
	BINEXT := .exe
else
	UNAME := $(shell uname -s)
    ifeq ($(UNAME),Darwin)
        PLATFORM := Darwin
        LIBEXT := .dylib
        MODTYPE := dynamiclib
    else
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        PLATFORM := POSIX
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        LDFLAGS += -pthread -lm -Wl,-E
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        ifeq (,$(findstring BSD,$(UNAME)))
            LDFLAGS += -ldl
        endif
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    endif
endif

# Silent compilation
ifeq ($(V),1)
	quiet = $($1)
else
	quiet = @echo "  $1	$2"; $($1)
endif	

%.o: %.c
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	$(call quiet,CC,$<) $(BUILD_CFLAGS) -MMD -MP -c $< -o $@
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# Make objects and depends (name)
define make_objs
$(1)_OBJ := $$($(1)_SOURCES:.c=.o)
$(1)_DEP := $$($(1)_SOURCES:.c=.d)
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-include $$($(1)_DEP)
endef

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# Make target (name,path,ext,ldflags,dst,amalgable)
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define make_target
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ifeq ($(AMALG)|$(6), yes|yes)
$(1).amalg.c: $$($(1)_SOURCES)
	$(call quiet,CAT,$$@) $$($(1)_SOURCES) > $$@
# AR requires .o compiled
$(1)_OBJ := $(1).amalg.c
ifeq ($(4),-$(ARTYPE))
$(1)_OBJ := $(1).amalg.o
endif
else
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$$(eval $$(call make_objs,$(1)))
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endif
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$(1) := $(2)/$(1)$(3)
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$(2)/$(1)$(3): $$($(1)_OBJ) $$($(1)_DEPEND)
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ifeq ($(4),-$(ARTYPE))
	$(call quiet,AR,$$@) rcs $$@ $$($(1)_OBJ)
else
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	$(call quiet,CCLD,$$@) $(BUILD_CFLAGS) $$($(1)_CFLAGS) $$($(1)_OBJ) -o $$@ $(4) $$($(1)_LIBS) $(BUILD_LDFLAGS)
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endif
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$(1)-clean:
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	$(RM) $$($(1)_OBJ) $$($(1)_DEP) $(2)/$(1)$(3)
ifeq ($(6), yes)
	$(RM) $(1).amalg.c $(1).amalg.o
endif
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$(1)-install: $(2)/$(1)$(3)
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ifneq ($(5),$(MODULEDIR))
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	$(INSTALL) -d $(5)
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endif
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	$(INSTALL) $(2)/$(1)$(3) $(5)
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ifneq ($$(strip $$($(1)_HEADERS)),)
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	$(INSTALL) -d $(INCLUDEDIR)/$(1)
	$(INSTALL) -m 644 $$($(1)_HEADERS) $(INCLUDEDIR)/$(1)
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endif
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.PHONY: $(1)-clean $(1)-install
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endef

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# Make targets (name,path,amalgable yes|no)
make_bin = $(call make_target,$(1),$(2),$(BINEXT),$(BINFLAGS),$(BINDIR),$(3))
make_lib = $(call make_target,$(1),$(2),$(LIBEXT),-$(LIBTYPE),$(LIBDIR),$(3))
make_module = $(call make_target,$(1),$(2),$(LIBEXT),-$(LIBTYPE),$(MODULEDIR),$(3))
make_shared = $(call make_target,$(1),$(2),$(MODEXT),-$(MODTYPE),$(LIBDIR),$(3))
make_static = $(call make_target,$(1),$(2),$(AREXT),-$(ARTYPE),$(LIBDIR),$(3))
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# Find library (pkg-config)
define find_lib
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	$(call find_alt,$(1),$(1),$(2))
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endef

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# Find library alternative (pkg-config)
define find_alt
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	ifeq ($$(strip $$($(1)_LIBS)),)
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		ifneq ($(strip $(3)),)
			$(1)_VER := $(shell pkg-config --atleast-version=$(3) $(2) && echo $(3))
		endif
		ifeq ($(strip $(3)),$$($(1)_VER))
			$(1)_CFLAGS := $(shell pkg-config --cflags $(2) --silence-errors)
			$(1)_LIBS := $(shell pkg-config --libs $(2)  --silence-errors)
		endif
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	endif
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	ifeq ($$(strip $$($(1)_LIBS)),)
		HAS_$(1) := no
	else
		HAS_$(1) := yes
	endif
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endef

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# Find binary
define find_bin
	ifeq ($$(strip $$($(1)_BIN)),)
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		$(1)_BIN := $(shell which $(1))
	endif
	ifeq ($$(strip $$($(1)_BIN)),)
		HAS_$(1) := no
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	else
		HAS_$(1) := yes
		$(1) := $$($(1)_BIN)
	endif
endef
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# Find version
define find_ver
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	ifeq ($(shell test $(2) -ge $(3); echo $$?),0)
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		HAS_$(1) := yes
	else
		HAS_$(1) := no
	endif
endef

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# Find Go package
define find_gopkg
	HAS_$(1) := $(shell go list $(2) > /dev/null 2>&1 && echo yes || echo no)
endef