From 4a8223a5478b94e94036ebb3072c518f8a2183d3 Mon Sep 17 00:00:00 2001
From: John Johansen <john.johansen@canonical.com>
Date: Wed, 30 Sep 2020 13:36:23 -0700
Subject: [PATCH] tests regression: fix failure on older versions of Make

Older versions of Make will choke on the # character in the $(shell
expression, treating it as the beginning of a comment. Resulting in
the following error

make unterminated call to function 'shell': missing ')'.  Stop.

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/639
Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Steve Beattie <steve.beattie@canonical.com>
(cherry picked from commit 8cf3534a5b11643c5913e5eb74e491f2f014d792)
Signed-off-by: Jon Tourville <jon.tourville@canonical.com>
---
 tests/regression/apparmor/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/regression/apparmor/Makefile b/tests/regression/apparmor/Makefile
index c3d0cfb73..5653d8bb2 100644
--- a/tests/regression/apparmor/Makefile
+++ b/tests/regression/apparmor/Makefile
@@ -69,8 +69,8 @@ endif # USE_SYSTEM
 
 CFLAGS += -g -O0 -Wall -Wstrict-prototypes
 
-USE_SYSCTL:=$(shell echo "#include <sys/sysctl.h>" | cpp -dM >/dev/null 2>/dev/null && echo true)
-
+SYSCTL_INCLUDE="\#include <sys/sysctl.h>"
+USE_SYSCTL:=$(shell echo $(SYSCTL_INCLUDE) | cpp -dM >/dev/null 2>/dev/null && echo true)
 
 SRC=access.c \
     at_secure.c \