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Makefile: Bring back -O3 in a downstream-compatible way

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This commit brings back -O3 but in an overridable way. This should make
downstream distributions happy enough to accept it.

While at the subject, let's apply the same fixup logic to LDFLAGS, too.

This commit also properly gets rid of the implicit rules which collided
too easily with the depends.mk.

Signed-off-by: Kai Krakow <kai@kaishome.de>
This commit is contained in:
Kai Krakow 2018-11-08 01:56:19 +01:00
parent f2dec480a6
commit c69a954d8f
No known key found for this signature in database
GPG Key ID: 046FAC3028D76321
4 changed files with 30 additions and 26 deletions
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8
lib/Makefile
View File

@ -22,6 +22,8 @@ CRUCIBLE_OBJS = \
include ../makeflags
include ../Defines.mk
BEES_LDFLAGS = $(LDFLAGS)
configure.h: configure.h.in
$(TEMPLATE_COMPILER)
@ -29,7 +31,7 @@ configure.h: configure.h.in
mkdir -p $@
.depends/%.dep: %.cc configure.h Makefile | .depends
$(CXX) $(CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
$(CXX) $(BEES_CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
depends.mk: $(CRUCIBLE_OBJS:%.o=.depends/%.dep)
cat $^ > $@.new
@ -42,7 +44,7 @@ depends.mk: $(CRUCIBLE_OBJS:%.o=.depends/%.dep)
include depends.mk
%.o: %.cc ../makeflags
$(CXX) $(CXXFLAGS) -fPIC -o $@ -c $<
$(CXX) $(BEES_CXXFLAGS) -fPIC -o $@ -c $<
libcrucible.so: $(CRUCIBLE_OBJS) .version.o
$(CXX) $(LDFLAGS) -fPIC -shared -Wl,-soname,$@ -o $@ $^ -luuid
$(CXX) $(BEES_LDFLAGS) -fPIC -shared -Wl,-soname,$@ -o $@ $^ -luuid

12
makeflags
View File

@ -1,11 +1,13 @@
# Default:
CCFLAGS = -Wall -Wextra -Werror -I../include -fpic -D_FILE_OFFSET_BITS=64
CCFLAGS = -Wall -Wextra -Werror -O3
# Optimized:
# CCFLAGS = -Wall -Wextra -Werror -O3 -march=native -I../include -fpic -D_FILE_OFFSET_BITS=64
# CCFLAGS = -Wall -Wextra -Werror -O3 -march=native
# Debug:
# CCFLAGS = -Wall -Wextra -Werror -O0 -I../include -ggdb -fpic -D_FILE_OFFSET_BITS=64
# CCFLAGS = -Wall -Wextra -Werror -O0 -ggdb
CFLAGS += $(CCFLAGS) -std=c99
CXXFLAGS += $(CCFLAGS) -std=c++11 -Wold-style-cast
CCFLAGS += -I../include -fpic -D_FILE_OFFSET_BITS=64
BEES_CFLAGS = $(CCFLAGS) -std=c99 $(CFLAGS)
BEES_CXXFLAGS = $(CCFLAGS) -std=c++11 -Wold-style-cast $(CXXFLAGS)

24
src/Makefile
View File

@ -1,14 +1,14 @@
BEES = ../bin/bees
PROGRAMS = \
../bin/bees \
../bin/fiemap \
../bin/fiewalk \
all: $(PROGRAMS)
all: $(BEES) $(PROGRAMS)
include ../makeflags
LIBS = -lcrucible -lpthread
LDFLAGS = -L../lib
BEES_LDFLAGS = -L../lib $(LDFLAGS)
BEES_OBJS = \
bees.o \
@ -27,7 +27,7 @@ bees-version.c: bees.h $(BEES_OBJS:.o=.cc) Makefile
mkdir -p $@
.depends/%.dep: %.cc Makefile | .depends
$(CXX) $(CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
$(CXX) $(BEES_CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
depends.mk: $(BEES_OBJS:%.o=.depends/%.dep)
cat $^ > $@.new
@ -35,15 +35,17 @@ depends.mk: $(BEES_OBJS:%.o=.depends/%.dep)
include depends.mk
%.o: %.cc %.h
$(CXX) $(CXXFLAGS) -o $@ -c $<
$(BEES_OBJS) fiemap.o fiewalk.o: %.o: %.cc
$(CXX) $(BEES_CXXFLAGS) -o $@ -c $<
../bin/%: %.o
@echo Implicit bin rule "$<" '->' "$@"
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $< $(LIBS)
$(PROGRAMS): ../bin/%: %.o
$(CXX) $(BEES_CXXFLAGS) $(BEES_LDFLAGS) -o $@ $< $(LIBS)
../bin/bees: $(BEES_OBJS) bees-version.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
bees-version.o: %.o: %.c
$(CC) $(BEES_CFLAGS) -o $@ -c $<
$(BEES): $(BEES_OBJS) bees-version.o
$(CXX) $(BEES_CXXFLAGS) $(BEES_LDFLAGS) -o $@ $^ $(LIBS)
clean:
rm -fv *.o bees-version.c

12
test/Makefile
View File

@ -16,13 +16,13 @@ FORCE:
include ../makeflags
LIBS = -lcrucible -lpthread
LDFLAGS = -L../lib -Wl,-rpath=$(shell realpath ../lib)
BEES_LDFLAGS = -L../lib -Wl,-rpath=$(abspath ../lib) $(LDFLAGS)
.depends:
mkdir -p $@
.depends/%.dep: %.cc tests.h Makefile | .depends
$(CXX) $(CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
$(CXX) $(BEES_CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
depends.mk: $(PROGRAMS:%=.depends/%.dep)
cat $^ > $@.new
@ -30,13 +30,11 @@ depends.mk: $(PROGRAMS:%=.depends/%.dep)
include depends.mk
%.o: %.cc %.h ../makeflags Makefile
@echo "Implicit rule %.o: %.cc"
$(CXX) $(CXXFLAGS) -o $@ -c $<
$(PROGRAMS:%=%.o): %.o: %.cc ../makeflags Makefile
$(CXX) $(BEES_CXXFLAGS) -o $@ -c $<
$(PROGRAMS): %: %.o ../makeflags Makefile
@echo "Implicit rule %: %.o"
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $< $(LIBS)
$(CXX) $(BEES_CXXFLAGS) $(BEES_LDFLAGS) -o $@ $< $(LIBS)
%.txt: % Makefile FORCE
./$< >$@ 2>&1 || (RC=$$?; cat $@; exit $$RC)