configure: Use automake's option "subdir-objects"

Following advice in "Autotool Mythbuster" [1], option subdir-objects
can be used to have Makefiles create object files in the same
directory than theirs source files.

It reduces clobbering in the build directory.

[1] "Autotool Mythbuster", by Diego Elio "Flameeyes" Petten`o
http://www.flameeyes.eu/autotools-mythbuster/automake/nonrecursive.html

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>

diff --git a/configure.ac b/configure.ac
index a9e95c00b119930872e19a1d432aa3d64525a002..807470f1633e2f9221e51c8aac02899d29de4e2e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ AC_CONFIG_SRCDIR([src/cma.c])
 AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_MACRO_DIR(config)
 AC_CONFIG_HEADERS([config.h])
-AM_INIT_AUTOMAKE([foreign])
+AM_INIT_AUTOMAKE([foreign subdir-objects])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 LT_INIT