[virt-tools-list] [virt-viewer] build-sys: Use automake 'subdir-objects' option

[Christophe Fergeau]

This silences an automake 1.14 warning:

src/Makefile.am:35: warning: source file 'view/autoDrawer.c' is in a
subdirectory,
src/Makefile.am:35: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the
'subdir-objects'
automake: automake option hasn't been enabled.  For now, the
corresponding output
automake: object file(s) will be placed in the top-level directory.
However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same
subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option
throughout your
automake: project, to avoid future incompatibilities.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 4e0d7b3..2363fa5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_HEADERS([config.h])
 dnl Make automake keep quiet about wildcards & other GNUmake-isms
-AM_INIT_AUTOMAKE([-Wno-portability])
+AM_INIT_AUTOMAKE([subdir-objects -Wno-portability])
 AC_CANONICAL_HOST
 
 # Use the silent-rules feature when possible.
-- 
1.9.0