configure.ac: Require a2x when building from git
tree5a3adefaf471bd19ff102465e9268bc586f4d093
-rw-r--r-- 1283 .gitignore
-rw-r--r-- 42 AUTHORS
-rw-r--r-- 34520 COPYING
-rw-r--r-- 506 Makefile.am
-rw-r--r-- 2021 NEWS
-rw-r--r-- 2509 README
-rwxr-xr-x 1695 bootstrap.sh
-rw-r--r-- 3719 configure.ac
drwxr-xr-x - doc
-rwxr-xr-x 1161 gen-news.sh
-rwxr-xr-x 1534 gen-ver.sh
drwxr-xr-x - po
drwxr-xr-x - src