compat: add qsort_s()

diff --git a/Makefile b/Makefile
index f53fcc90d71b7e0ba95b94e9baf67d559085863c..8c549cecf09275070b9887800b59178ff6b159ab 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -279,6 +279,9 @@ all::
 # is a simplified version of the merge sort used in glibc. This is
 # recommended if Git triggers O(n^2) behavior in your platform's qsort().
 #
+# Define HAVE_ISO_QSORT_S if your platform provides a qsort_s() that's
+# compatible with the one described in C11 Annex K.
+#
 # Define UNRELIABLE_FSTAT if your system's fstat does not return the same
 # information on a not yet closed file that lstat would return for the same
 # file after it was closed.
@@ -1423,6 +1426,11 @@ ifdef INTERNAL_QSORT
        COMPAT_CFLAGS += -DINTERNAL_QSORT
        COMPAT_OBJS += compat/qsort.o
 endif
+ifdef HAVE_ISO_QSORT_S
+       COMPAT_CFLAGS += -DHAVE_ISO_QSORT_S
+else
+       COMPAT_OBJS += compat/qsort_s.o
+endif
 ifdef RUNTIME_PREFIX
        COMPAT_CFLAGS += -DRUNTIME_PREFIX
 endif