From b89753f6ea9fd2b7a00ec19fec0ceead264c40f8 Mon Sep 17 00:00:00 2001
From: Tobias Nygren <tnn@NetBSD.org>
Date: Tue, 7 Mar 2023 11:44:29 +0100
Subject: Fix build on SunOS

---
 src/sort_r.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/sort_r.h b/src/sort_r.h
index 8d8b580b..cfbde7f4 100644
--- a/src/sort_r.h
+++ b/src/sort_r.h
@@ -30,6 +30,8 @@ void sort_r(void *base, size_t nel, size_t width,
        defined __linux__ || defined __MINGW32__ || defined __GLIBC__ || \
        defined __CYGWIN__)
 #  define _SORT_R_LINUX
+#elif defined __sun
+#  define _SORT_R_SUN
 #elif (defined _WIN32 || defined _WIN64 || defined __WINDOWS__)
 #  define _SORT_R_WINDOWS
 #else
@@ -87,6 +89,11 @@ void sort_r(void *base, size_t nel, size_t width,
                         __compar_d_fn_t __compar, void *arg)
       __attribute__((nonnull (1, 4)));
 
+  #elif defined _SORT_R_SUN
+
+     extern void qsort_r(void *base, size_t nel, size_t width,
+         int (*compar_arg)(const void *, const void *, void *), void *arg);
+
   #endif
 
   /* implementation */
@@ -106,6 +113,10 @@ void sort_r(void *base, size_t nel, size_t width,
       tmp.compar = compar;
       qsort_r(base, nel, width, &tmp, sort_r_arg_swap);
 
+    #elif defined _SORT_R_SUN
+
+      qsort_r(base, nel, width, compar, arg);
+
     #else /* defined _SORT_R_WINDOWS */
 
       struct sort_r_data tmp;
@@ -121,5 +132,6 @@ void sort_r(void *base, size_t nel, size_t width,
 #undef _SORT_R_WINDOWS
 #undef _SORT_R_LINUX
 #undef _SORT_R_BSD
+#undef _SORT_R_SUN
 
 #endif /* SORT_R_H_ */
-- 
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