From af65a9520ac436951d704b78d2a4a5e61c8ad5a6 Mon Sep 17 00:00:00 2001
From: John Safranek <john@wolfssl.com>
Date: Tue, 3 Jul 2018 14:39:54 -0700
Subject: [PATCH] Configure Update Change the increment of the number of
 jobservers to be more posixish. More compatible with HPUX's ksh.

---
 m4/ax_am_jobserver.m4 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/m4/ax_am_jobserver.m4 b/m4/ax_am_jobserver.m4
index dfbcdbb2f..7da8d5e71 100644
--- a/m4/ax_am_jobserver.m4
+++ b/m4/ax_am_jobserver.m4
@@ -33,7 +33,9 @@
 #   and this notice are preserved. This file is offered as-is, without any
 #   warranty.
 
-#serial 8
+#serial 8.1
+# Local update: Make the increment of enable-jobserver so it isn't executable
+# and is more posix syntax.
 
 AC_DEFUN([AX_AM_JOBSERVER], [
     AC_REQUIRE([AX_COUNT_CPUS])
@@ -45,7 +47,7 @@ AC_DEFUN([AX_AM_JOBSERVER], [
     ],, [enable_jobserver=m4_ifval([$1],[$1],[yes])])
     if test "x$enable_jobserver" = "xyes"; then
         enable_jobserver=$CPU_COUNT
-        ((enable_jobserver++))
+        : $((enable_jobserver+=1))
     fi
     m4_pattern_allow(AM_MAKEFLAGS)
     if test "x$enable_jobserver" != "xno"; then