From: Peter Kokot <peterkokot@gmail.com>
Date: Mon, 23 Jul 2018 05:25:38 +0000 (+0200)
Subject: Remove obsolete AC_TYPE_SIGNAL
X-Git-Tag: php-7.3.0beta1~31
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=17de277a2fde5a4ad3df03b7acb73a61137d1f95;p=php

Remove obsolete AC_TYPE_SIGNAL

The AC_TYPE_SIGNAL macro defined the RETSIGTYPE based on the signal
type defined in the signal.h. On pre C89 sistems (K&R C) it could be
void or int. Since C89 it can be safely assumed that the signal and
therefore the RETSIGTYPE is always void, so the RETSIGTYPE can be
replaced with void in the code if it uses it. PHP doesn't use the
RETSIGTYPE in current code anyway.

Refs:
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html
---

diff --git a/Zend/Zend.m4 b/Zend/Zend.m4
index 7d6b7638cb..2b489a82f2 100644
--- a/Zend/Zend.m4
+++ b/Zend/Zend.m4
@@ -61,7 +61,6 @@ stdlib.h \
 dlfcn.h)
 
 AC_TYPE_SIZE_T
-AC_TYPE_SIGNAL
 
 AC_DEFUN([LIBZEND_LIBDL_CHECKS],[
 AC_CHECK_LIB(dl, dlopen, [LIBS="-ldl $LIBS"])