[notmuch] [PATCH] Makefile: Magic silent rules.
Chris Wilson
chris at chris-wilson.co.uk
Sat Nov 21 11:02:22 PST 2009
Use the facilities of GNU make to create a magic function that will
on the first invocation print a description of how to enable verbose
compile lines and then print the quiet rule.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Carl Worth <cworth at cworth.org>
Cc: Mikhail Gusarov <dottedmag at dottedmag.net>
---
Makefile | 22 +++++++++++++++++++---
Makefile.local | 4 ++--
lib/Makefile.local | 2 +-
3 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/Makefile b/Makefile
index 3fedcf1..77e70ed 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,10 @@
WARN_FLAGS=-Wall -Wextra -Wmissing-declarations -Wwrite-strings -Wswitch-enum
CFLAGS=-O2
+# Additional programs that are used during the compilation process.
+EMACS ?= emacs
+GZIP ?= gzip
+
# Additional flags that we will append to whatever the user set.
# These aren't intended for the user to manipulate.
extra_cflags := $(shell pkg-config --cflags glib-2.0 gmime-2.4 talloc)
@@ -31,14 +35,26 @@ include lib/Makefile.local
# And get user settings from the output of configure
include Makefile.config
+# The user has not set any verbosity, default to quiet mode and inform the
+# user how to enable verbose compiles.
+ifeq ($(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.
+
%.o: %.cc $(all_deps)
- $(CXX) -c $(CXXFLAGS) $< -o $@
+ $(call quiet,CXX) -c $(CXXFLAGS) $< -o $@
%.o: %.c $(all_deps)
- $(CC) -c $(CFLAGS) $< -o $@
+ $(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 $(all_deps)
@set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
diff --git a/Makefile.local b/Makefile.local
index 3c99624..5fd5d4f 100644
--- a/Makefile.local
+++ b/Makefile.local
@@ -20,10 +20,10 @@ notmuch_client_srcs = \
notmuch_client_modules = $(notmuch_client_srcs:.c=.o)
notmuch: $(notmuch_client_modules) lib/notmuch.a
- $(CXX) $^ $(LDFLAGS) -o $@
+ $(call quiet,CXX) $^ $(LDFLAGS) -o $@
notmuch.1.gz: notmuch.1
- gzip --stdout notmuch.1 > notmuch.1.gz
+ $(call quiet,GZIP) --stdout $^ > $@
install: all notmuch.1.gz
for d in $(DESTDIR)$(prefix)/bin/ $(DESTDIR)$(prefix)/share/man/man1 \
diff --git a/lib/Makefile.local b/lib/Makefile.local
index 79f7b0b..a7562c9 100644
--- a/lib/Makefile.local
+++ b/lib/Makefile.local
@@ -18,7 +18,7 @@ libnotmuch_cxx_srcs = \
libnotmuch_modules = $(libnotmuch_c_srcs:.c=.o) $(libnotmuch_cxx_srcs:.cc=.o)
$(dir)/notmuch.a: $(libnotmuch_modules)
- $(AR) rcs $@ $^
+ $(call quiet,AR) rcs $@ $^
SRCS := $(SRCS) $(libnotmuch_c_srcs) $(libnotmuch_cxx_srcs)
CLEAN := $(CLEAN) $(libnotmuch_modules) $(dir)/notmuch.a
--
1.6.5.3
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