Update build system (automake, autoconf, libtool)

Unfortunately this patch is hard to split up into smaller chunks. Our build
system and the associated automake/autoconf/libtool macros has been left
untouched for a while, and could use a refresher.

* Upgrade ltmain.sh to the latest version
* Move away from a huge acinclude.m4 directory to using individual files in
  the m4/ subdirectory, suggested by upstream automake documentation
* Update all macros to their latest available version
* Adjust Makefile.am and autogen.sh to accommodate m4/ subdirectory

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/autogen.sh b/autogen.sh
index 964fe5f5..be50be6d 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -xu
 
-aclocal
+aclocal -I m4 --install
 autoheader
 automake --foreign
 autoconf