From: Peter Kokot <peterkokot@gmail.com>
Date: Thu, 6 Sep 2018 02:45:45 +0000 (+0200)
Subject: Remove AC_FUNC_MEMCMP
X-Git-Tag: v6.9.1~47^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cfe22c69f5736069ce3698a491fa2b7a7fa029bc;p=onig

Remove AC_FUNC_MEMCMP

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems anymore, including the `AC_FUNC_MEMCMP`.

On some old systems such as SunOS 4.1.3 (EOL in 2003) and NeXT x86
OpenStep (discontinued) the `memcmp` function wasn't present or it
didn't work properly. [2]

On current systems including at least Solaris 10+ this check is not
relevant anymore.

Refs:
[1] http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
[2] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html
---

diff --git a/configure.ac b/configure.ac
index 10dae12..91b4c7a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -61,7 +61,6 @@ AC_HEADER_TIME
 
 dnl Checks for library functions.
 AC_FUNC_ALLOCA
-AC_FUNC_MEMCMP
 
 AC_CACHE_CHECK(for prototypes, _cv_have_prototypes,
   [AC_COMPILE_IFELSE(