[eog-plugins] Use separate m4 macro dir

[Felix Riemann <friemann src gnome org>]

commit 84faec10252c38354993e96489f6f48881b18895
Author: Felix Riemann <friemann gnome org>
Date:   Tue Jan 7 23:50:47 2014 +0100

    Use separate m4 macro dir
    
    As done by eog already

 Makefile.am  |    2 ++
 configure.ac |    1 +
 2 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index b0ed7b4..3cbda03 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,7 @@
 SUBDIRS = plugins po
 
+ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
+
 EXTRA_DIST =                   \
        autogen.sh              \
        ChangeLog.pre-git
diff --git a/configure.ac b/configure.ac
index 18c9251..d301756 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,6 +13,7 @@ AC_SUBST(EOG_PLUGINS_MAJOR)
 AC_PREREQ(2.59)
 
 AM_INIT_AUTOMAKE([1.11 foreign dist-xz no-dist-gzip])
+AC_CONFIG_MACRO_DIR([m4])
 # Support silencing the build output if supported (automake-1.11+)
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])