This commit aims at avoiding any interference with another autoconf release
package by keeping the library directory separate from other autoconf
release packages - WITHOUT breaking package functionality.
This approach might be consistently applied to other AUTOCONF versions
other than the latest one at the time. Then the user can choose which
major AUTOCONF release version she wants to apply.
* PKGBUILD:
- add and apply patch 0001-autoconf-2.13-version-specific-share-directory.patch
- add missing dependency to PERL
* 0001-autoconf-2.13-version-specific-share-directory.patch:
- add patch fixing library path