From 81a352bb61a17452b544fc0fac261ee8c61f04a5 Mon Sep 17 00:00:00 2001
From: Brooks Davis <brooks@FreeBSD.org>
Date: Tue, 22 Mar 2022 20:23:22 +0000
Subject: [PATCH] test-includes: improve portability

FreeBSD's shell permits [^bar] to match characters not in [bar] like
common regular expressions. This is non-portable and '!' should be
used in place of '^' for portability.

Reported by:	Nathaniel Wesley Filardo
Issue:		https://github.com/CTSRD-CHERI/cheribsd/issues/1321
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D34597

(cherry picked from commit 44b36b80f57830bc9ccd78e27b12213c6a16626d)
---
 tools/build/test-includes/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/build/test-includes/Makefile b/tools/build/test-includes/Makefile
index 707ab6f4ca47..174c4341331c 100644
--- a/tools/build/test-includes/Makefile
+++ b/tools/build/test-includes/Makefile
@@ -16,7 +16,7 @@
 LIB=	test-includes
 INTERNALLIB=	This is a compile-only test
 MAN=
-HDRS!=	(cd ${SRCTOP}/sys; ls sys/[^_]*.h | sort ; ls net*/[^_]*.h | sort)
+HDRS!=	(cd ${SRCTOP}/sys; ls sys/[!_]*.h | sort ; ls net*/[!_]*.h | sort)
 NO_PIC=	yes
 
 # Some files have to be clean for extra defines too...