Makefile: Fix to work even with GZIP environment variable set.

[notmuch] / Makefile

diff --git a/Makefile b/Makefile
index 17fa4a2206bd520e02270223bb6d380e2ec26f54..ae8bff134a154544340bca9558aefe6639ff19d6 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,13 +2,25 @@
 WARN_FLAGS=-Wall -Wextra -Wmissing-declarations -Wwrite-strings -Wswitch-enum
 CFLAGS=-O2
 
+# Additional programs that are used during the compilation process.
+EMACS ?= emacs
+# Lowercase to avoid clash with GZIP environment variable for passing
+# arguments to gzip.
+gzip = gzip
+
 # 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)
 
 emacs_lispdir := $(shell pkg-config emacs --variable sitepkglispdir)
-emacs_startdir := $(shell pkg-config emacs --variable sitestartdir)
+# Hard-code if this system doesn't have an emacs.pc file
+ifeq ($(emacs_lispdir),)
+       emacs_lispdir = $(prefix)/share/emacs/site-lisp
+endif
+
+all_deps = Makefile Makefile.local Makefile.config \
+                  lib/Makefile lib/Makefile.local
 
 # Now smash together user's values with our extra values
 override CFLAGS += $(WARN_FLAGS) $(extra_cflags)
@@ -25,22 +37,35 @@ include lib/Makefile.local
 # And get user settings from the output of configure
 include Makefile.config
 
-%.o: %.cc
-       $(CXX) -c $(CFLAGS) $(CXXFLAGS) $< -o $@
+# The user has not set any verbosity, default to quiet mode and inform the
+# user how to enable verbose compiles.
+ifeq ($(V),)
+quiet_DOC := "Use \"$(MAKE) V=1\" to see the verbose compile lines.\n"
+quiet = @echo $(quiet_DOC)$(eval quiet_DOC:=)"  $1     $@"; $($1)
+endif
+# The user has explicitly enabled quiet compilation.
+ifeq ($(V),0)
+quiet = @echo "  $1    $@"; $($1)
+endif
+# Otherwise, print the full command line.
+quiet ?= $($1)
+
+%.o: %.cc $(all_deps)
+       $(call quiet,CXX) -c $(CXXFLAGS) $< -o $@
 
-%.o: %.c
-       $(CC) -c $(CFLAGS) $< -o $@
+%.o: %.c $(all_deps)
+       $(call quiet,CC) -c $(CFLAGS) $< -o $@
 
 %.elc: %.el
-       emacs -batch -f batch-byte-compile $<
+       $(call quiet,EMACS) -batch -f batch-byte-compile $<
 
-.deps/%.d: %.c
+.deps/%.d: %.c $(all_deps)
        @set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
        $(CC) -M $(CPPFLAGS) $(CFLAGS) $< > $@.$$$$; \
        sed 's,'$$(basename $*)'\.o[ :]*,$*.o $@ : ,g' < $@.$$$$ > $@; \
        rm -f $@.$$$$
 
-.deps/%.d: %.cc
+.deps/%.d: %.cc $(all_deps)
        @set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
        $(CXX) -M $(CPPFLAGS) $(CXXFLAGS) $< > $@.$$$$; \
        sed 's,'$$(basename $*)'\.o[ :]*,$*.o $@ : ,g' < $@.$$$$ > $@; \