X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=Makefile;h=4c0e8c62011393277cc1041a69859cde5296c2ea;hp=076efc79b9532c3e1b80a8ef5b9687456a2fe895;hb=4e2c351c588ad74f4800ca0344232be90387c54a;hpb=7d9851e293fad762cd959e9be819e48a26087cdc

diff --git a/Makefile b/Makefile
index 076efc79..4c0e8c62 100644
--- a/Makefile
+++ b/Makefile
@@ -2,13 +2,38 @@
 # given explicitly on the command line) so mention it first.
 all:
 
-# List all subdirectories here. Each contains its own Makefile.local
-subdirs = compat completion emacs lib
+# Sub-directory Makefile.local fragments can append to these variables
+# to have directory-specific cflags as necessary.
+
+extra_cflags :=
+extra_cxxflags :=
+
+# Get settings from the output of configure by running it to generate
+# Makefile.config if it doesn't exist yet.
+
+# 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 ?= .
+
+include Makefile.config
 
 # We make all targets depend on the Makefiles themselves.
-global_deps = Makefile Makefile.local \
+global_deps = Makefile Makefile.config Makefile.local \
 	$(subdirs:%=%/Makefile) $(subdirs:%=%/Makefile.local)
 
+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 Makefile.local $(subdirs:%=%/Makefile.local)
+
+include $(subdirs:%=%/Makefile.local) Makefile.local