tree eca1aac11587f347eb5dc13db4b938908141748b
parent 635d394fe3c040c68753b757101439d1b1368002
author Werner Lemberg <wl@gnu.org> 1613592634 +0100
committer Werner Lemberg <wl@gnu.org> 1613592634 +0100

[unix] Updates for autoconf 2.71.

This fixes warnings reported by autoupdate.

* builds/unix/ax_pthread.m4: Replace `as_echo` with `AS_ECHO`.

* builds/unix/configure.raw: Remove obsolete `AC_HEADER_STDC`.
Don't escape back quotes in messages for `AC_MSG_WARN`.