From e32b4b69cdf55bb73638021b01f2be7d4b165be9 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 23 Oct 2025 05:23:27 +0000
Subject:  Fix qsort_r sysdep detection

---
 src/sysdeps/tryqsortr_posix.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

(limited to 'src/sysdeps/tryqsortr_posix.c')

diff --git a/src/sysdeps/tryqsortr_posix.c b/src/sysdeps/tryqsortr_posix.c
index 63c1d60..81af081 100644
--- a/src/sysdeps/tryqsortr_posix.c
+++ b/src/sysdeps/tryqsortr_posix.c
@@ -1,19 +1,25 @@
 /* ISC license. */
 
+#undef _POSIX_C_SOURCE
+#undef _XOPEN_SOURCE
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
 #include <stdlib.h>
 
 static int f (void const *a, void const *b, void *c)
 {
-  int aa = *(int *)a ;
-  int bb = *(int *)b ;
+  int aa = *(int const *)a ;
+  int bb = *(int const *)b ;
   (void)c ;
   return aa < bb ? -1 : aa > bb ;
 }
 
 int main (void)
 {
-  char *x = "blah" ;
+  char *arg = "blah" ;
   int x[2] = { 2, 1 } ;
-  qsort_r(x, 2, sizeof(int), &f, x) ;
+  qsort_r(x, 2, sizeof(int), &f, arg) ;
   return 0 ;
 }
-- 
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