support make goals after initial {'', dist, data}clean goal(s)

[notmuch] / Makefile

diff --git a/Makefile b/Makefile
index a9d91d8667ad83e49b018c6c80e79be2cccd9cd3..d2010fe48669e549cc4c0865362c3f5103a349ca 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,55 +1,71 @@
-PROGS=notmuch
+# We want the all target to be the implicit target (if no target is
+# given explicitly on the command line) so mention it first.
+all:
 
-WARN_FLAGS=-Wall -Wextra -Wmissing-declarations -Wwrite-strings -Wswitch-enum
+# Sub-directory Makefile.local fragments can append to these variables
+# to have directory-specific cflags as necessary.
 
-NOTMUCH_DEPENDS_FLAGS=-I./lib `pkg-config --cflags glib-2.0 gmime-2.4 talloc`
-NOTMUCH_CXX_DEPENDS_FLAGS=$(NOTMUCH_DEPENDS_FLAGS) `xapian-config --cxxflags`
+extra_cflags :=
+extra_cxxflags :=
 
-NOTMUCH_CFLAGS=$(WARN_FLAGS) -O0 -g $(NOTMUCH_DEPENDS_FLAGS)
-NOTMUCH_CXXFLAGS=$(WARN_FLAGS) -O0 -g $(NOTMUCH_CXX_DEPENDS_FLAGS)
+# Get settings from the output of configure by running it to generate
+# Makefile.config if it doesn't exist yet.
 
-NOTMUCH_LDFLAGS=`pkg-config --libs glib-2.0 gmime-2.4 talloc` \
-               `xapian-config --libs`
+# If Makefile.config doesn't exist, then srcdir won't be
+# set. Conditionally set it (assuming a plain srcdir build) so that
+# the rule to generate Makefile.config can actually work.
+srcdir ?= .
 
-LIBRARY=                       \
-       lib/database.o          \
-       lib/index.o             \
-       lib/libsha1.o           \
-       lib/message.o           \
-       lib/message-file.o      \
-       lib/query.o             \
-       lib/sha1.o              \
-       lib/tags.o              \
-       lib/thread.o            \
-       lib/xutil.o
+include Makefile.config
 
-MAIN=                  \
-       notmuch.o
+# We make all targets depend on the Makefiles themselves.
+global_deps = Makefile Makefile.config Makefile.local \
+       $(subdirs:%=%/Makefile) $(subdirs:%=%/Makefile.local)
 
-all: $(PROGS)
+INCLUDE_MORE := yes
+ifneq ($(filter clean distclean dataclean, $(word 1, $(MAKECMDGOALS))),)
+CLEAN_GOAL := $(word 1, $(MAKECMDGOALS))
 
-%.o: %.cc
-       $(CXX) -c $(CFLAGS) $(CXXFLAGS) $(NOTMUCH_CXXFLAGS) $< -o $@
+# If there are more goals following CLEAN_GOAL, run $(MAKE)s in parts.
+ifneq ($(word 2, $(MAKECMDGOALS)),)
+INCLUDE_MORE := no
+FOLLOWING_GOALS := $(wordlist 2, 99, $(MAKECMDGOALS))
 
-%.o: %.c
-       $(CC) -c $(CFLAGS) $(NOTMUCH_CFLAGS) $< -o $@
+.PHONY: $(FOLLOWING_GOALS) make_in_parts
+$(FOLLOWING_GOALS):
+       @true
+$(CLEAN_GOAL): make_in_parts
+make_in_parts:
+       $(MAKE) $(CLEAN_GOAL)
+       $(MAKE) $(FOLLOWING_GOALS) configure_options="$(configure_options)"
+endif
 
-notmuch: $(MAIN) $(LIBRARY)
-       $(CC) $(NOTMUCH_LDFLAGS) $^ -o $@
+else
+CLEAN_GOAL :=
+endif
 
-.depends: *.c lib/*.c lib/*.cc
-       $(CXX) -M $(CPPFLAGS) $(NOTMUCH_DEPENDS_FLAGS) \
-       $(NOTMUCH_CXX_DEPENDS_FLAGS) $^ > $@
--include .depends
+# Potentially speedup make clean, distclean and dataclean ; avoid
+# re-creating Makefile.config if it exists but configure is newer.
+ifneq ($(CLEAN_GOAL),)
+Makefile.config: | $(srcdir)/configure
+else
+Makefile.config: $(srcdir)/configure
+endif
+ifeq ($(configure_options),)
+       @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 ""
+endif
+       $(srcdir)/configure $(configure_options)
 
-notmuch.1.gz:
-       gzip --stdout notmuch.1 > notmuch.1.gz
+ifeq ($(INCLUDE_MORE),yes)
+# runtime variable definitions available in all subdirs
+include $(srcdir)/Makefile.global
+# Finally, include all of the Makefile.local fragments where all the
+# real work is done.
 
-install: all notmuch.1.gz
-       install -C -D notmuch $(DESTDIR)/usr/bin/notmuch
-       install -C -D notmuch.1.gz $(DESTDIR)/usr/share/man/man1
-       install -C -D notmuch-completion.bash \
-               $(DESTDIR)/etc/bash_completion.d/notmuch
-
-clean:
-       rm -f $(PROGS) lib/*.o *.o .depends
+include $(subdirs:%=%/Makefile.local) Makefile.local
+endif