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GNU Make 4.0 does not assign to MAKEFLAGS sequentially

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This commit is contained in:
John Reiser 2015-08-03 22:35:00 -07:00
parent e48a60a4f0
commit 9d7e44feff
1 changed files with 30 additions and 23 deletions
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53
src/Makefile
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@ -4,7 +4,13 @@
# Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
#
# In GNU Make 4.0 this "MAKEFLAGS += -rR" is not executed immediately.
# Instead, it is executed later, and we cannot rely on sequentiality
# with respect to builtin variables. So if we want to have no
# dependencies on the default values of builtin variables,
# then we cannot use builtin variables at all.
MAKEFLAGS += -rR
.SUFFIXES:
export SHELL = /bin/sh
override e = $($1) $(EXTRA_$1) $(upx_$1) $($(basename $(notdir $@)).$1)
@ -26,30 +32,30 @@ ifneq ($(srcdir),.)
VPATH := . $(srcdir)
endif
ifeq ($(CXX),)
CXX = g++
ifeq ($(upx_CXX),)
upx_CXX = g++
endif
ifneq ($(findstring $(firstword $(CXX)),g++),)
ifneq ($(findstring $(firstword $(upx_CXX)),g++),)
USE_GNUC ?= 1
endif
ifeq ($(USE_GNUC),1)
ifeq ($(DEBUG),1)
CXXFLAGS += -O0 -g
upx_CXXFLAGS += -O0 -g
else
CXXFLAGS += -O2
upx_CXXFLAGS += -O2
LDFLAGS += -s
endif
# some gcc versions suffer over-agressive aliasing and wrapv optimization features/bugs
CXXFLAGS_OPTIMIZE_STRICT_ALIASING ?= -fno-strict-aliasing
CXXFLAGS_OPTIMIZE_WRAPV ?= -fwrapv
CXXFLAGS += $(CXXFLAGS_OPTIMIZE_STRICT_ALIASING)
CXXFLAGS += $(CXXFLAGS_OPTIMIZE_WRAPV)
CXXFLAGS += -Wall -W -Wcast-align -Wcast-qual -Wpointer-arith -Wshadow -Wwrite-strings
CXXFLAGS_WERROR ?= -Werror
CXXFLAGS += $(CXXFLAGS_WERROR)
upx_CXXFLAGS_OPTIMIZE_STRICT_ALIASING ?= -fno-strict-aliasing
upx_CXXFLAGS_OPTIMIZE_WRAPV ?= -fwrapv
upx_CXXFLAGS += $(upx_CXXFLAGS_OPTIMIZE_STRICT_ALIASING)
upx_CXXFLAGS += $(upx_CXXFLAGS_OPTIMIZE_WRAPV)
upx_CXXFLAGS += -Wall -W -Wcast-align -Wcast-qual -Wpointer-arith -Wshadow -Wwrite-strings
upx_CXXFLAGS_WERROR ?= -Werror
upx_CXXFLAGS += $(upx_CXXFLAGS_WERROR)
endif
CPPFLAGS += $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
CXXLD ?= $(CXX)
upx_CPPFLAGS += $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
upx_CXXLD ?= $(upx_CXX)
exeext ?= .out
libext ?= .a
@ -66,6 +72,7 @@ endif
LIBS += -lucl -lz
# you should set envvar UPX_LZMADIR to point to your unpacked LZMA SDK
include $(top_srcdir)/src/stub/src/c/Makevars.lzma
$(info UPX_LZMA_VERSION=$(UPX_LZMA_VERSION))
ifneq ($(UPX_LZMA_VERSION),)
DEFS += -DWITH_LZMA=$(UPX_LZMA_VERSION)
INCLUDES += -I$(UPX_LZMADIR)
@ -77,32 +84,32 @@ all: upx$(exeext) | .depend
upx$(exeext): $(upx_OBJECTS) $(upx_DEPENDENCIES)
$($(notdir $@).PRE_LINK_STEP)
$(strip $(CXXLD) $(call e,CPPFLAGS) $(call e,CXXFLAGS) $(call e,LDFLAGS) -o $@ $(upx_OBJECTS) $(call e,LDADD) $(call e,LIBS))
$(strip $(upx_CXXLD) $(call e,upx_CPPFLAGS) $(call e,upx_CXXFLAGS) $(call e,LDFLAGS) -o $@ $(upx_OBJECTS) $(call e,LDADD) $(call e,LIBS))
$($(notdir $@).POST_LINK_STEP)
%.o : %.cpp | .depend
$(strip $(CXX) $(call e,CPPFLAGS) $(call e,CXXFLAGS) -o $@ -c $<)
$(strip $(upx_CXX) $(call e,upx_CPPFLAGS) $(call e,upx_CXXFLAGS) -o $@ -c $<)
.depend: $(sort $(wildcard $(srcdir)/*.cpp $(srcdir)/*.h)) $(MAKEFILE_LIST)
@rm -f $@
ifeq ($(USE_GNUC),1)
@echo "Updating $@"
@$(strip $(CXX) $(call e,CPPFLAGS) -MM) $(filter %.cpp,$^) > $@
@$(strip $(upx_CXX) $(call e,upx_CPPFLAGS) -MM) $(filter %.cpp,$^) > $@
else
touch $@
endif
ifeq ($(USE_GNUC),1)
##compress_lzma$(objext) : CXXFLAGS += -O3 -fomit-frame-pointer
compress_lzma$(objext) : CXXFLAGS += -Wno-cast-qual
compress_lzma$(objext) : CXXFLAGS += -Wno-shadow
##compress_lzma$(objext) : upx_CXXFLAGS += -O3 -fomit-frame-pointer
compress_lzma$(objext) : upx_CXXFLAGS += -Wno-cast-qual
compress_lzma$(objext) : upx_CXXFLAGS += -Wno-shadow
ifeq ($(UPX_LZMA_VERSION),0x443)
compress_lzma$(objext) : CXXFLAGS += -Wno-non-virtual-dtor
compress_lzma$(objext) : CXXFLAGS += -Wno-unused
compress_lzma$(objext) : upx_CXXFLAGS += -Wno-non-virtual-dtor
compress_lzma$(objext) : upx_CXXFLAGS += -Wno-unused
endif
# needed for gcc-4.3:
compress_lzma$(objext) : CXXFLAGS += -Wno-error
compress_lzma$(objext) : upx_CXXFLAGS += -Wno-error
endif