[libvirt] [PATCH] build: inform libtool of m4 directory

[Eric Blake]

Silence a libtoolize warning.

*  configure.ac (AC_CONFIG_MACRO_DIR): Add.
---
Libtool spits out this warning during ./autogen.sh:

| libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.ac and
| libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree.

I've checked that there is no significant difference in the generated
files when applying this patch to silence the warning, and that autoconf
2.59 supplied this macro.

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1c7c24c..743a357 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,6 +4,7 @@ AC_INIT([libvirt], [0.7.6])
 AC_CONFIG_SRCDIR([src/libvirt.c])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_MACRO_DIR([m4])
 dnl Make automake keep quiet about wildcards & other GNUmake-isms
 AM_INIT_AUTOMAKE([-Wno-portability])

-- 
1.6.6