build: Fix a plain "make" to automatically run configure.

[notmuch] / Makefile

diff --git a/Makefile b/Makefile
index a9d91d8667ad83e49b018c6c80e79be2cccd9cd3..ffee659b0eb5f4ccf2921647838a16a66c2f6c69 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,55 +1,39 @@
-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
+# List all subdirectories here. Each contains its own Makefile.local
+subdirs = compat completion emacs lib test
 
-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`
+# We make all targets depend on the Makefiles themselves.
+global_deps = Makefile Makefile.config Makefile.local \
+       $(subdirs:%=%/Makefile) $(subdirs:%=%/Makefile.local)
 
-NOTMUCH_CFLAGS=$(WARN_FLAGS) -O0 -g $(NOTMUCH_DEPENDS_FLAGS)
-NOTMUCH_CXXFLAGS=$(WARN_FLAGS) -O0 -g $(NOTMUCH_CXX_DEPENDS_FLAGS)
+# Sub-directory Makefile.local fragments can append to these variables
+# to have directory-specific cflags as necessary.
 
-NOTMUCH_LDFLAGS=`pkg-config --libs glib-2.0 gmime-2.4 talloc` \
-               `xapian-config --libs`
+extra_cflags :=
+extra_cxxflags :=
 
-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
+# Get settings from the output of configure by running it to generate
+# Makefile.config if it doesn't exist yet.
 
-MAIN=                  \
-       notmuch.o
+# 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 ?= .
 
-all: $(PROGS)
+include Makefile.config
+Makefile.config: $(srcdir)/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
 
-%.o: %.cc
-       $(CXX) -c $(CFLAGS) $(CXXFLAGS) $(NOTMUCH_CXXFLAGS) $< -o $@
+# Finally, include all of the Makefile.local fragments where all the
+# real work is done.
 
-%.o: %.c
-       $(CC) -c $(CFLAGS) $(NOTMUCH_CFLAGS) $< -o $@
-
-notmuch: $(MAIN) $(LIBRARY)
-       $(CC) $(NOTMUCH_LDFLAGS) $^ -o $@
-
-.depends: *.c lib/*.c lib/*.cc
-       $(CXX) -M $(CPPFLAGS) $(NOTMUCH_DEPENDS_FLAGS) \
-       $(NOTMUCH_CXX_DEPENDS_FLAGS) $^ > $@
--include .depends
-
-notmuch.1.gz:
-       gzip --stdout notmuch.1 > notmuch.1.gz
-
-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