notmuch/Makefile
Carl Worth 86232e62ab Makefile: Fix Makefiles to depend on all child Makefile fragments.
We were previously maintaining two lists of the child Makefile
fragments---one for the includes and another for the dependencies. So,
of course, they drifted and the dependency list wasn't up to date.

We fix this by adding a single subdirs variable, and then using GNU
Makefile substitution to generate both the include and the dependency
lists.

Some side effect of this change caused the '=' assignment of the dir
variable to not work anymore. I'm not sure why that is, but using ':='
makes sense here and fixes the problem.
2010-03-10 10:59:57 -08:00

91 lines
3 KiB
Makefile

WARN_CXXFLAGS=-Wall -Wextra -Wwrite-strings -Wswitch-enum
WARN_CFLAGS=$(WARN_CXXFLAGS) -Wmissing-declarations
# Additional programs that are used during the compilation process.
EMACS ?= emacs --quick
# Lowercase to avoid clash with GZIP environment variable for passing
# arguments to gzip.
gzip = gzip
bash_completion_dir = /etc/bash_completion.d
zsh_completion_dir = /usr/share/zsh/functions/Completion/Unix
extra_cflags :=
extra_cxxflags :=
# Now smash together user's values with our extra values
FINAL_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(CONFIGURE_CFLAGS) $(extra_cflags)
FINAL_CXXFLAGS = $(CXXFLAGS) $(WARN_CXXFLAGS) $(CONFIGURE_CXXFLAGS) $(extra_cflags) $(extra_cxxflags)
FINAL_LDFLAGS = $(LDFLAGS) $(CONFIGURE_LDFLAGS)
all: notmuch notmuch.1.gz
ifeq ($(MAKECMDGOALS),)
@echo ""
@echo "Compilation of notmuch is now complete. You can install notmuch with:"
@echo ""
@echo " make install"
@echo ""
@echo "Note that depending on the prefix to which you are installing"
@echo "you may need root permission (such as \"sudo make install\")."
@echo "See \"./configure --help\" for help on setting an alternate prefix."
endif
# Before including any other Makefile fragments, get settings from the
# output of configure
Makefile.config: configure
@echo ""
@echo "Note: Calling ./configure with no command-line arguments. This is often fine,"
@echo " but if you want to specify any arguments (such as an alternate prefix"
@echo " into which to install), call ./configure explicitly and then make again."
@echo " See \"./configure --help\" for more details."
@echo ""
./configure
subdirs = compat emacs lib
global_deps = Makefile Makefile.config Makefile.local \
$(subdirs:%=%/Makefile) $(subdirs:%=%/Makefile.local)
include Makefile.config Makefile.local $(subdirs:%=%/Makefile.local)
# The user has not set any verbosity, default to quiet mode and inform the
# user how to enable verbose compiles.
ifeq ($(V),)
quiet_DOC := "Use \"$(MAKE) V=1\" to see the verbose compile lines.\n"
quiet = @printf $(quiet_DOC)$(eval quiet_DOC:=)" $1 $2 $@\n"; $($1)
endif
# The user has explicitly enabled quiet compilation.
ifeq ($(V),0)
quiet = @printf " $1 $@\n"; $($1)
endif
# Otherwise, print the full command line.
quiet ?= $($1)
%.o: %.cc $(global_deps)
$(call quiet,CXX,$(CXXFLAGS)) -c $(FINAL_CXXFLAGS) $< -o $@
%.o: %.c $(global_deps)
$(call quiet,CC,$(CFLAGS)) -c $(FINAL_CFLAGS) $< -o $@
%.elc: %.el
$(call quiet,EMACS) -batch -f batch-byte-compile $<
.deps/%.d: %.c $(global_deps)
@set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
$(CC) -M $(CPPFLAGS) $(FINAL_CFLAGS) $< > $@.$$$$ 2>/dev/null ; \
sed 's,'$$(basename $*)'\.o[ :]*,$*.o $@ : ,g' < $@.$$$$ > $@; \
rm -f $@.$$$$
.deps/%.d: %.cc $(global_deps)
@set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
$(CXX) -M $(CPPFLAGS) $(FINAL_CXXFLAGS) $< > $@.$$$$ 2>/dev/null ; \
sed 's,'$$(basename $*)'\.o[ :]*,$*.o $@ : ,g' < $@.$$$$ > $@; \
rm -f $@.$$$$
DEPS := $(SRCS:%.c=.deps/%.d)
DEPS := $(DEPS:%.cc=.deps/%.d)
-include $(DEPS)
.PHONY : clean
clean:
rm -f $(CLEAN); rm -rf .deps