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configure: remove use of RETSIGTYPE

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This was previously defined by the obsolete AC_TYPE_SIGNAL macro,
which was removed in 2682e5f5. The deprecation text says

> Your code may safely assume C89 semantics that RETSIGTYPE is void.

So, remove it and just use void instead.

Closes #6861
This commit is contained in:
Michael Forney 2021-04-07 02:37:15 -07:00 • committed by Daniel Stenberg
parent 694eab18bc
commit 812fce9dcf
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19 changed files with 12 additions and 85 deletions
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6
tests/server/util.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -543,7 +543,7 @@ long timediff(struct timeval newer, struct timeval older)
/* vars used to keep around previous signal handlers */
typedef RETSIGTYPE (*SIGHANDLER_T)(int);
typedef void (*SIGHANDLER_T)(int);
#ifdef SIGHUP
static SIGHANDLER_T old_sighup_handler = SIG_ERR;
@ -591,7 +591,7 @@ HANDLE exit_event = NULL;
* The first time this is called it will set got_exit_signal to one and
* store in exit_signal the signal that triggered its execution.
*/
static RETSIGTYPE exit_signal_handler(int signum)
static void exit_signal_handler(int signum)
{
int old_errno = errno;
logmsg("exit_signal_handler: %d", signum);