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support environment CFLAGS (and SFLAGS) without clobbering the essential build flags

This commit is contained in:
Jameson Nash 2013-03-02 19:40:38 -05:00
parent 50ce8eff11
commit 3fda504f47
1 changed files with 12 additions and 9 deletions
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21
Make.inc
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@ -9,30 +9,30 @@ FFLAGS += -O3
USEGCC = 1
USECLANG = 0
CFLAGS += -std=c99 -Wall -O3 -I$(OPENLIBM_HOME) -I$(OPENLIBM_HOME)/include -I$(OPENLIBM_HOME)/ld80 -I$(OPENLIBM_HOME)/$(ARCH) -I$(OPENLIBM_HOME)/src -DASSEMBLER -D__BSD_VISIBLE -Wno-implicit-function-declaration
CFLAGS_add += -std=c99 -Wall -O3 -I$(OPENLIBM_HOME) -I$(OPENLIBM_HOME)/include -I$(OPENLIBM_HOME)/ld80 -I$(OPENLIBM_HOME)/$(ARCH) -I$(OPENLIBM_HOME)/src -DASSEMBLER -D__BSD_VISIBLE -Wno-implicit-function-declaration
ifeq ($(USECLANG),1)
USEGCC = 0
CC = clang
CFLAGS += -fno-builtin
CFLAGS_add += -fno-builtin
endif
ifeq ($(USEGCC),1)
CC = gcc
CFLAGS += -fno-gnu89-inline
CFLAGS_add += -fno-gnu89-inline
endif
AR = ar
default: all
%.c.o: %.c
$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
$(CC) $(CPPFLAGS) $(CFLAGS_add) $(CFLAGS) -c $< -o $@
%.f.o: %.f
$(FC) $(FFLAGS) -c $< -o $@
%.S.o: %.S
$(CC) $(filter -m% -B% -I% -D%,$(CFLAGS)) -c $< -o $@
$(CC) $(SFLAGS) $(filter -m% -B% -I% -D%,$(CFLAGS_add)) -c $< -o $@
clean:
rm -fr *.o *.c.o *.S.o *~ test-double test-float test-double-system test-float-system *.dSYM
@ -52,25 +52,28 @@ endif
ifeq ($(OS), MINGW32_NT-6.1)
OS=WINNT
CFLAGS+=-nodefaultlibs
endif
#keep these if statements these separate
ifeq ($(OS), WINNT)
CFLAGS_add+=-nodefaultlibs
FFLAGS+=-nodefaultlibs
endif
ifeq ($(OS), Linux)
SHLIB_EXT = so
CFLAGS+=-fPIC
CFLAGS_add+=-fPIC
FFLAGS+=-fPIC
endif
ifeq ($(OS), FreeBSD)
SHLIB_EXT = so
CFLAGS+=-fPIC
CFLAGS_add+=-fPIC
FFLAGS+=-fPIC
endif
ifeq ($(OS), Darwin)
SHLIB_EXT = dylib
CFLAGS+=-fPIC
CFLAGS_add+=-fPIC
FFLAGS+=-fPIC
endif