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allow environment variables to set/extend CC, CXX, CFLAGS and LDFLAGS

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This commit is contained in:
Moritz Warning 2015-01-22 22:24:39 +01:00
commit 5505161d8b
3 changed files with 28 additions and 22 deletions
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18
make-freebsd.mk
View file

@ -1,5 +1,5 @@
CC=cc
CXX=c++
CC?=cc
CXX?=c++
INCLUDES=
DEFS=
@ -21,19 +21,21 @@ endif
# "make debug" is a shortcut for this
ifeq ($(ZT_DEBUG),1)
# DEFS+=-DZT_TRACE -DZT_LOG_STDOUT
CFLAGS=-Wall -g -pthread $(INCLUDES) $(DEFS)
LDFLAGS=
CFLAGS+=-Wall -g -pthread $(INCLUDES) $(DEFS)
LDFLAGS+=
STRIP=echo
# The following line enables optimization for the crypto code, since
# C25519 in particular is almost UNUSABLE in heavy testing without it.
ext/lz4/lz4.o node/Salsa20.o node/SHA512.o node/C25519.o node/Poly1305.o: CFLAGS = -Wall -O2 -g -pthread $(INCLUDES) $(DEFS)
ext/lz4/lz4.o node/Salsa20.o node/SHA512.o node/C25519.o node/Poly1305.o: CFLAGS?=-O2 CFLAGS+=-Wall -g -pthread $(INCLUDES) $(DEFS)
else
CFLAGS=-Wall -O3 -fPIE -fvisibility=hidden -fstack-protector -pthread $(INCLUDES) -DNDEBUG $(DEFS)
LDFLAGS=-pie -Wl,-z,relro,-z,now
CFLAGS?=-O3 -fstack-protector
CFLAGS+=-Wall -fPIE -fvisibility=hidden -pthread $(INCLUDES) -DNDEBUG $(DEFS)
LDFLAGS+=-pie -Wl,-z,relro,-z,now
STRIP=strip --strip-all
endif
CXXFLAGS=$(CFLAGS) -fno-rtti
CXXFLAGS?=-fno-rtti
CXXFLAGS=$(CFLAGS)
all: one

18
make-linux.mk
View file

@ -1,6 +1,6 @@
# Pick clang or gcc, with preference for clang
CC=$(shell which clang gcc cc 2>/dev/null | head -n 1)
CXX=$(shell which clang++ g++ c++ 2>/dev/null | head -n 1)
CC?=$(shell which clang gcc cc 2>/dev/null | head -n 1)
CXX?=$(shell which clang++ g++ c++ 2>/dev/null | head -n 1)
INCLUDES=
DEFS=
@ -22,15 +22,16 @@ endif
# "make debug" is a shortcut for this
ifeq ($(ZT_DEBUG),1)
# DEFS+=-DZT_TRACE -DZT_LOG_STDOUT
CFLAGS=-Wall -g -pthread $(INCLUDES) $(DEFS)
LDFLAGS=
CFLAGS+=-Wall -g -pthread $(INCLUDES) $(DEFS)
LDFLAGS+=
STRIP=echo
# The following line enables optimization for the crypto code, since
# C25519 in particular is almost UNUSABLE in heavy testing without it.
ext/lz4/lz4.o node/Salsa20.o node/SHA512.o node/C25519.o node/Poly1305.o: CFLAGS = -Wall -O2 -g -pthread $(INCLUDES) $(DEFS)
ext/lz4/lz4.o node/Salsa20.o node/SHA512.o node/C25519.o node/Poly1305.o: CFLAGS?=-O2 CFLAGS+=-Wall -g -pthread $(INCLUDES) $(DEFS)
else
CFLAGS=-Wall -O3 -fPIE -fvisibility=hidden -fstack-protector -pthread $(INCLUDES) -DNDEBUG $(DEFS)
LDFLAGS=-pie -Wl,-z,relro,-z,now
CFLAGS?=-O3 -fstack-protector
CFLAGS+=-Wall -fPIE -fvisibility=hidden -pthread $(INCLUDES) -DNDEBUG $(DEFS)
LDFLAGS+=-pie -Wl,-z,relro,-z,now
STRIP=strip --strip-all
endif
@ -39,7 +40,8 @@ endif
#LDFLAGS=
#STRIP=echo
CXXFLAGS=$(CFLAGS) -fno-rtti
CXXFLAGS?=-fno-rtti
CXXFLAGS+=$(CFLAGS)
all: one

14
make-mac.mk
View file

@ -1,5 +1,5 @@
CC=clang
CXX=clang++
CC?=clang
CXX?=clang++
INCLUDES=
DEFS=
@ -27,17 +27,19 @@ endif
ifeq ($(ZT_DEBUG),1)
# DEFS+=-DZT_TRACE -DZT_LOG_STDOUT
CFLAGS=-Wall -g -pthread $(INCLUDES) $(DEFS)
CFLAGS+=-Wall -g -pthread $(INCLUDES) $(DEFS)
STRIP=echo
# The following line enables optimization for the crypto code, since
# C25519 in particular is almost UNUSABLE in heavy testing without it.
ext/lz4/lz4.o node/Salsa20.o node/SHA512.o node/C25519.o node/Poly1305.o: CFLAGS = -Wall -O2 -g -pthread $(INCLUDES) $(DEFS)
ext/lz4/lz4.o node/Salsa20.o node/SHA512.o node/C25519.o node/Poly1305.o: CFLAGS?=-O2 CFLAGS+=-Wall -g -pthread $(INCLUDES) $(DEFS)
else
CFLAGS=-arch i386 -arch x86_64 -Wall -O3 -flto -fPIE -fvectorize -fstack-protector -pthread -mmacosx-version-min=10.6 -DNDEBUG -Wno-unused-private-field $(INCLUDES) $(DEFS)
CFLAGS?=-O3 -fstack-protector
CFLAGS+=-arch i386 -arch x86_64 -Wall -flto -fPIE -fvectorize -pthread -mmacosx-version-min=10.6 -DNDEBUG -Wno-unused-private-field $(INCLUDES) $(DEFS)
STRIP=strip
endif
CXXFLAGS=$(CFLAGS) -fno-rtti
CXXFLAGS?=-fno-rtti
CXXFLAGS=$(CFLAGS)
all: one