diff options
| author |  Chris Wilson <chris@chris-wilson.co.uk> | 2009-11-21 20:32:20 +0000 |
|---|---|---|
| committer |  Carl Worth <cworth@cworth.org> | 2009-11-22 04:29:29 +0100 |
| commit | 530df68258ea0fbdceafd6e4a0f51889c6ee86d2 (patch) | |
| tree | 108e8fec03c6e3fe05ec952c36c1b32af5e6b9b0 /Makefile | |
| parent | 5d56e931b99d575dbb0b936d24aae5e9903861ad (diff) | |
Makefile: Magic silent rules.
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@chris-wilson.co.uk>
Signed-off-by: Carl Worth <cworth@cworth.org>
Cc: Mikhail Gusarov <dottedmag@dottedmag.net>
[ickle: Rebased, and duplicate command string eliminated.]
[ickle: Fixed verbose bug pointed out by Mikhail]
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 23 |
1 files changed, 20 insertions, 3 deletions
@@ -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 := $(shell pkg-config --cflags glib-2.0 gmime-2.4 talloc) @@ -31,14 +35,27 @@ include lib/Makefile.local # And get user settings from the output of configure include Makefile.config +# The user has not set any verbosity, default to quiet mode and inform the +# user how to enable verbose compiles. +ifeq ($(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. +quiet ?= $($1) + %.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 $@) ; \ |