X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=Makefile;h=061c55a1948aa821da17e1537c7da36c866606bb;hp=023b2ec85fed32059dae867386a189573b5e0e66;hb=3fed6736a7ef8b8b1f05d0fabb136bdd3b5917ee;hpb=4a6a1ed654291a720c75c6b6c078fe52f206dc8a

diff --git a/Makefile b/Makefile
index 023b2ec8..061c55a1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,48 +1,44 @@
-# Default FLAGS, (can be overridden by user such as "make CFLAGS=-O2")
-WARN_FLAGS=-Wall -Wextra -Wmissing-declarations -Wwrite-strings -Wswitch-enum
-CFLAGS=-O2
+# 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:
 
-# Additional flags that we will append to whatever the user set.
-# These aren't intended for the user to manipulate.
-extra_cflags := $(shell pkg-config --cflags glib-2.0 gmime-2.4 talloc)
-extra_cxxflags := $(shell xapian-config --cxxflags)
+# List all subdirectories here. Each contains its own Makefile.local.
+# Use of '=', without '+=', seems to be required for out-of-tree
+# builds to work.
+subdirs = compat completion doc emacs lib parse-time-string	\
+	performance-test util test test/test-databases
 
-# Now smash together user's values with our extra values
-override CFLAGS += $(WARN_FLAGS) $(extra_cflags)
-override CXXFLAGS += $(WARN_FLAGS) $(extra_cflags) $(extra_cxxflags)
+# We make all targets depend on the Makefiles themselves.
+global_deps = Makefile Makefile.config Makefile.local \
+	$(subdirs:%=%/Makefile) $(subdirs:%=%/Makefile.local)
 
-override LDFLAGS += \
-	$(shell pkg-config --libs glib-2.0 gmime-2.4 talloc) \
-	$(shell xapian-config --libs)
+# Sub-directory Makefile.local fragments can append to these variables
+# to have directory-specific cflags as necessary.
 
-# Include our local Makefile.local first so that its first target is default
-include Makefile.local
-include lib/Makefile.local
+extra_cflags :=
+extra_cxxflags :=
 
-# And get user settings from the output of configure
-include Makefile.config
-
-%.o: %.cc
-	$(CXX) -c $(CFLAGS) $(CXXFLAGS) $< -o $@
-
-%.o: %.c
-	$(CC) -c $(CFLAGS) $< -o $@
+# Get settings from the output of configure by running it to generate
+# Makefile.config if it doesn't exist yet.
 
-.deps/%.d: %.c
-	@set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
-	$(CC) -M $(CPPFLAGS) $(CFLAGS) $< > $@.$$$$; \
-	sed 's,'$$(basename $*)'\.o[ :]*,$*.o $@ : ,g' < $@.$$$$ > $@; \
-	rm -f $@.$$$$
+# 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 ?= .
 
-.deps/%.d: %.cc
-	@set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
-	$(CXX) -M $(CPPFLAGS) $(CXXFLAGS) $< > $@.$$$$; \
-	sed 's,'$$(basename $*)'\.o[ :]*,$*.o $@ : ,g' < $@.$$$$ > $@; \
-	rm -f $@.$$$$
-
-DEPS := $(SRCS:%.c=.deps/%.d)
-DEPS := $(DEPS:%.cc=.deps/%.d)
--include $(DEPS)
-
-clean:
-	rm -f $(CLEAN); rm -rf .deps
+include Makefile.config
+Makefile.config: $(srcdir)/configure
+ifeq ($(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)
+
+# Finally, include all of the Makefile.local fragments where all the
+# real work is done.
+
+include $(subdirs:%=%/Makefile.local) Makefile.local