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automatic %.h header dependency tracking

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also : BUILD_DIR can be manually specified
This commit is contained in:
Yann Collet 2020-10-21 17:25:07 -07:00
parent 2b99bc29bf
commit 8a453a34c5
1 changed files with 30 additions and 13 deletions
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43
lib/Makefile
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@ -164,14 +164,16 @@ endif
endif
CPPFLAGS += -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT)
ZSTD_FULL_OBJ := $(ZSTD_FILES:.c=.o)
ZSTD_LOCAL_OBJ := $(notdir $(ZSTD_FULL_OBJ))
ZSTD_LOCAL_SRC := $(notdir $(ZSTD_FILES))
ZSTD_LOCAL_OBJ := $(ZSTD_LOCAL_SRC:.c=.o)
vpath %.c common compress decompress dictBuilder legacy deprecated
ZSTD_SUBDIR := common compress decompress dictBuilder legacy deprecated
vpath %.c $(ZSTD_SUBDIR)
ZSTD_DYNLIB_DIR := obj/dynlib
BUILD_DIR ?= obj
ZSTD_DYNLIB_DIR := $(BUILD_DIR)/dynlib
ZSTD_DYNLIB_OBJ := $(addprefix $(ZSTD_DYNLIB_DIR)/, $(ZSTD_LOCAL_OBJ))
ZSTD_STATLIB_DIR := obj/statlib
ZSTD_STATLIB_DIR := $(BUILD_DIR)/statlib
ZSTD_STATLIB_OBJ := $(addprefix $(ZSTD_STATLIB_DIR)/, $(ZSTD_LOCAL_OBJ))
# macOS linker doesn't support -soname, and use different extension
@ -243,13 +245,28 @@ lib : libzstd.a libzstd
%-release : %
@echo release build completed
$(ZSTD_DYNLIB_DIR)/%.o : %.c | $(ZSTD_DYNLIB_DIR)
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
$(ZSTD_STATLIB_DIR)/%.o : %.c | $(ZSTD_STATLIB_DIR)
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
# Generate .h dependencies automatically
DEPFLAGS = -MT $@ -MMD -MP -MF
$(ZSTD_DYNLIB_DIR)/%.o : %.c $(ZSTD_DYNLIB_DIR)/%.d | $(ZSTD_DYNLIB_DIR)
@echo $@
$(Q)$(COMPILE.c) $(DEPFLAGS) $(ZSTD_DYNLIB_DIR)/$*.d $(OUTPUT_OPTION) $<
$(ZSTD_STATLIB_DIR)/%.o : %.c $(ZSTD_STATLIB_DIR)/%.d | $(ZSTD_STATLIB_DIR)
@echo $@
$(Q)$(COMPILE.c) $(DEPFLAGS) $(ZSTD_STATLIB_DIR)/$*.d $(OUTPUT_OPTION) $<
MKDIR ?= mkdir
$(ZSTD_DYNLIB_DIR) $(ZSTD_STATLIB_DIR): ; $(Q)$(MKDIR) -p $@
$(ZSTD_DYNLIB_DIR) $(ZSTD_STATLIB_DIR):
$(Q)$(MKDIR) -p $@
DEPFILES := $(ZSTD_DYNLIB_OBJ:.o=.d) $(ZSTD_STATLIB_OBJ:.o=.d)
$(DEPFILES):
include $(wildcard $(DEPFILES))
# Special case : building library in single-thread mode _and_ without zstdmt_compress.c
ZSTDMT_FILES = compress/zstdmt_compress.c
@ -265,7 +282,7 @@ clean:
$(Q)$(RM) core *.o *.a *.gcda *.$(SHARED_EXT) *.$(SHARED_EXT).* libzstd.pc
$(Q)$(RM) dll/libzstd.dll dll/libzstd.lib libzstd-nomt*
$(Q)$(RM) common/*.o compress/*.o decompress/*.o dictBuilder/*.o legacy/*.o deprecated/*.o
$(Q)$(RM) -r $(ZSTD_STATLIB_DIR)/*.o $(ZSTD_DYNLIB_DIR)/*.o
$(Q)$(RM) -r $(ZSTD_STATLIB_DIR)/* $(ZSTD_DYNLIB_DIR)/*
@echo Cleaning library completed
#-----------------------------------------------------------------------------
@ -295,7 +312,7 @@ ifeq (,$(PCLIBDIR))
# Additional prefix check is required, since the empty string is technically a
# valid PCLIBDIR
ifeq (,$(shell echo "$(LIBDIR)" | sed -n $(SED_ERE_OPT) -e "\\@^$(EXEC_PREFIX)(/|$$)@ p"))
$(error configured libdir ($(LIBDIR)) is outside of prefix ($(PREFIX)), can't generate pkg-config file)
$(error configured libdir ($(LIBDIR)) is outside of prefix ($(EXEC_PREFIX)), can't generate pkg-config file)
endif
endif
@ -303,7 +320,7 @@ ifeq (,$(PCINCDIR))
# Additional prefix check is required, since the empty string is technically a
# valid PCINCDIR
ifeq (,$(shell echo "$(INCLUDEDIR)" | sed -n $(SED_ERE_OPT) -e "\\@^$(PREFIX)(/|$$)@ p"))
$(error configured includedir ($(INCLUDEDIR)) is outside of exec_prefix ($(EXEC_PREFIX)), can't generate pkg-config file)
$(error configured includedir ($(INCLUDEDIR)) is outside of exec_prefix ($(PREFIX)), can't generate pkg-config file)
endif
endif