allow passing of CFLAGS into make from environment

This commit is contained in:
Vincent Sanders 2016-02-15 14:59:23 +00:00
parent d39531ff55
commit b9f58cdf77

View File

@ -329,6 +329,9 @@ OBJROOT = build-$(HOST)-$(TARGET)$(SUBTARGET)
DEPROOT := $(OBJROOT)/deps
TOOLROOT := $(OBJROOT)/tools
# keep C flags from environment
CFLAGS_ENV := $(CFLAGS)
CXXFLAGS_ENV := $(CXXFLAGS)
# A macro that conditionaly adds flags to the build when a feature is enabled.
#
@ -470,14 +473,17 @@ endef
# Makefile.config
COMMON_WARNFLAGS = -W -Wall -Wundef -Wpointer-arith -Wcast-align \
-Wwrite-strings -Wmissing-declarations -Wuninitialized
ifneq ($(CC_MAJOR),2)
COMMON_WARNFLAGS += -Wno-unused-parameter
endif
# deal with lots of unwanted warnings from javascript
ifeq ($(call cc_ver_ge,4,6),1)
COMMON_WARNFLAGS += -Wno-unused-but-set-variable
endif
# deal with chaging warning flags on differing HOST systems
# deal with chaging warning flags for different platforms
ifeq ($(HOST),OpenBSD)
# OpenBSD headers are not compatible with redundant declaration warning
COMMON_WARNFLAGS += -Wno-redundant-decls
@ -723,7 +729,7 @@ $$(DEPROOT)/$(3) $$(OBJROOT)/$(2): $$(OBJROOT)/created
> $$(DEPROOT)/$(3)
$$(VQ)echo " COMPILE: $(1)"
$$(Q)$$(RM) $$(OBJROOT)/$(2)
$$(Q)$$(CC) $$(CFLAGS) $$(COMMON_WARNFLAGS) $$(CWARNFLAGS) -o $$(OBJROOT)/$(2) -c $(1)
$$(Q)$$(CC) $$(COMMON_WARNFLAGS) $$(CWARNFLAGS) $$(CFLAGS) $(CFLAGS_ENV) -o $$(OBJROOT)/$(2) -c $(1)
endef
else
@ -732,7 +738,7 @@ $$(DEPROOT)/$(3) $$(OBJROOT)/$(2): $$(OBJROOT)/created
$$(VQ)echo " COMPILE: $(1)"
$$(Q)$$(RM) $$(DEPROOT)/$(3)
$$(Q)$$(RM) $$(OBJROOT)/$(2)
$$(Q)$$(CC) $$(CFLAGS) $$(COMMON_WARNFLAGS) $$(CWARNFLAGS) \
$$(Q)$$(CC) $$(COMMON_WARNFLAGS) $$(CWARNFLAGS) $$(CFLAGS) $(CFLAGS_ENV) \
-MMD -MT '$$(DEPROOT)/$(3) $$(OBJROOT)/$(2)' \
-MF $$(DEPROOT)/$(3) -o $$(OBJROOT)/$(2) -c $(1)
@ -748,7 +754,7 @@ $$(DEPROOT)/$(3) $$(OBJROOT)/$(2): $$(OBJROOT)/created
> $$(DEPROOT)/$(3)
$$(VQ)echo " COMPILE: $(1)"
$$(Q)$$(RM) $$(OBJROOT)/$(2)
$$(Q)$$(CXX) $$(CXXFLAGS) $$(COMMON_WARNFLAGS) $$(CXXWARNFLAGS) -o $$(OBJROOT)/$(2) -c $(1)
$$(Q)$$(CXX) $$(COMMON_WARNFLAGS) $$(CXXWARNFLAGS) $$(CXXFLAGS) $(CXXFLAGS_ENV) -o $$(OBJROOT)/$(2) -c $(1)
endef