[PATCH v2 libevdev] Pass --no-print-directory to make

[Peter Hutterer]

From: David Herrmann <dh.herrmann at gmail.com>

The "Entering/Leaving directroy /xyz" messages only add noise to
make-output. Even without we still get short hints which directory is
currently processed. Compare the two outputs below:

With --no-print-directory added:
  make --no-print-directory all-recursive
  Making all in doc
  doxygen libevdev.doxygen
  Making all in libevdev
  python2 ./make-event-names.py --output=c > event-names.h
  make  all-am
    CC       libevdev.lo
    CCLD     libevdev.la
  Making all in tools
    CC       libevdev-events.o
    CCLD     libevdev-events
  Making all in test
    CC       test-main.o
    CC       test-event-names.o
    CC       test-libevdev-init.o
    CC       test-libevdev-has-event.o
    CC       test-int-queue.o
    CC       test-libevdev-events.o
    CC       libevdev.o
    CC       test-common-uinput.o
    CC       test-common.o
    CCLD     test-libevdev

Without it:
  make  all-recursive
  make[1]: Entering directory `/home/david/dev/libevdev'
  Making all in doc
  make[2]: Entering directory `/home/david/dev/libevdev/doc'
  doxygen libevdev.doxygen
  make[2]: Leaving directory `/home/david/dev/libevdev/doc'
  Making all in libevdev
  make[2]: Entering directory `/home/david/dev/libevdev/libevdev'
  python2 ./make-event-names.py --output=c > event-names.h
  make  all-am
  make[3]: Entering directory `/home/david/dev/libevdev/libevdev'
    CC       libevdev.lo
    CCLD     libevdev.la
  make[3]: Leaving directory `/home/david/dev/libevdev/libevdev'
  make[2]: Leaving directory `/home/david/dev/libevdev/libevdev'
  Making all in tools
  make[2]: Entering directory `/home/david/dev/libevdev/tools'
    CC       libevdev-events.o
    CCLD     libevdev-events
  make[2]: Leaving directory `/home/david/dev/libevdev/tools'
  Making all in test
  make[2]: Entering directory `/home/david/dev/libevdev/test'
    CC       test-main.o
    CC       test-event-names.o
    CC       test-libevdev-init.o
    CC       test-libevdev-has-event.o
    CC       test-int-queue.o
    CC       test-libevdev-events.o
    CC       libevdev.o
    CC       test-common-uinput.o
    CC       test-common.o
    CCLD     test-libevdev
  make[2]: Leaving directory `/home/david/dev/libevdev/test'
  make[2]: Entering directory `/home/david/dev/libevdev'
  make[2]: Leaving directory `/home/david/dev/libevdev'
  make[1]: Leaving directory `/home/david/dev/libevdev'

We don't really win any useful information from these messages.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
Changes to v1:
- use same approach as automake's _0 and _1 tactic to enable/disable the
  flags (thanks to Chris Bagwell)

Decided against using --print-directory in _1 to just use the default flags
instead of overriding whatever else may be set in the environment.

 Makefile.am | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index e622c1d..95a16ea 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,8 @@
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
+PRINT_DIRECTORY_FLAGS_1=
+PRINT_DIRECTORY_FLAGS_0=--no-print-directory
+PRINT_DIRECTORY_FLAGS_=$(PRINT_DIRECTORY_FLAGS_$(AM_DEFAULT_VERBOSITY))
+AM_MAKEFLAGS = $(PRINT_DIRECTORY_FLAGS_$(V))
 SUBDIRS = doc libevdev tools test
 
 pkgconfigdir = $(libdir)/pkgconfig
-- 
1.8.2.1