fdisk: sun, undef HAVE_QSORT_R for non-Linux

Linux/glibc's qsort_r(3) has differently ordered arguments than BSD
implementations. For now we undef that quick and dirty.

The real fix would be to make configure check for qsort_r more
carefully (AC_CHECK_FUNCS with AC_LANG_WERROR). Moreover one could
add a wrapper to swap arguments, see
https://github.com/noporpoise/sort_r/blob/master/sort_r.h

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>

diff --git a/libfdisk/src/sun.c b/libfdisk/src/sun.c
index d5c76ae8095fe00519fa100497eb9b23e0be8a76..a50076a87f81982bac1490ba2d6fa36c238309b5 100644 (file)
--- a/libfdisk/src/sun.c
+++ b/libfdisk/src/sun.c
@@ -378,6 +378,11 @@ static void fetch_sun(struct fdisk_context *cxt,
        }
 }
 
+/* non-Linux qsort_r(3) has usually differently ordered arguments */
+#if !defined (__linux__) || !defined (__GLIBC__)
+# undef HAVE_QSORT_R
+#endif
+
 #ifdef HAVE_QSORT_R
 static int verify_sun_cmp(int *a, int *b, void *data)
 {