From 2631aaccbc57388450403520e585d4440fec10fc Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 1 Jan 2026 12:07:54 +0000
Subject:  Prepare for 2.9.8.1; signal handlers must save/restore errno

---
 src/libexecline/el_forx_pidinfo.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/libexecline/el_forx_pidinfo.c b/src/libexecline/el_forx_pidinfo.c
index 61c5a26..8bd12bb 100644
--- a/src/libexecline/el_forx_pidinfo.c
+++ b/src/libexecline/el_forx_pidinfo.c
@@ -1,5 +1,7 @@
 /* ISC license. */
 
+#include <errno.h>
+
 #include <skalibs/djbunix.h>
 
 #include <execline/execline.h>
@@ -15,11 +17,13 @@ int el_forx_isok (unsigned short const *tab, unsigned int n, unsigned short code
 
 void el_forx_sigchld_handler (int sig)
 {
+  int e = errno ;
   for (;;)
   {
     ssize_t r = wait_pids_nohang(el_forx_pidinfo->tab, el_forx_pidinfo->len, &el_forx_pidinfo->wstat) ;
     if (r <= 0) break ;
     el_forx_pidinfo->tab[r-1] = el_forx_pidinfo->tab[--el_forx_pidinfo->len] ;
   }
+  errno = e ;
   (void)sig ;
 }
-- 
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