Add m4/ax_require_defined.m4.
commit356374bcac18099cb02414fe488d6d15fdca48e6
authorBen Kibbey <bjk@luxsci.net>
Sat, 8 Sep 2018 19:02:50 +0000 (8 12:02 -0700)
committerBen Kibbey <bjk@luxsci.net>
Sat, 8 Sep 2018 19:02:50 +0000 (8 12:02 -0700)
treebb5deffca3f5c2bc7e7a8e57a1a5f9ec18455938
parentf42da378adfdb1df5d365194ec38aaa6a896e585
Add m4/ax_require_defined.m4.

Fixes builds on some systems. Notably Ubuntu without autoconf-archive
installed.
m4/ax_require_defined.m4 [new file with mode: 0644]