git: 1b709e6fb254 - stable/12 - Fix unused variable warning in acpica's nsaccess.c

From: Dimitry Andric <dim_at_FreeBSD.org>
Date: Sat, 23 Jul 2022 08:59:05 UTC 
The branch stable/12 has been updated by dim:

URL: https://cgit.FreeBSD.org/src/commit/?id=1b709e6fb254e370a7980eb0dc9ad665cfcde6ba

commit 1b709e6fb254e370a7980eb0dc9ad665cfcde6ba
Author:     Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2022-07-20 19:10:43 +0000
Commit:     Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2022-07-23 08:57:44 +0000

    Fix unused variable warning in acpica's nsaccess.c
    
    With clang 15, the following -Werror warning is produced:
    
        sys/contrib/dev/acpica/components/namespace/nsaccess.c:452:29: error: variable 'NumCarats' set but not used [-Werror,-Wunused-but-set-variable]
            UINT32                  NumCarats;
                                    ^
    
    Here, 'NumCarats' is a variable that is only used when debugging. Since
    acpica is contributed code, suppress the warning with a compile flag.
    
    MFC after:      3 days
    
    (cherry picked from commit 3c9a0112bae6408892123b04a6ba5c6ee0780937)
---
 sys/conf/files | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/conf/files b/sys/conf/files
index 658df6a0c862..6bcc36d58e35 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -441,7 +441,8 @@ contrib/dev/acpica/components/hardware/hwtimer.c	optional acpi
 contrib/dev/acpica/components/hardware/hwvalid.c	optional acpi
 contrib/dev/acpica/components/hardware/hwxface.c	optional acpi
 contrib/dev/acpica/components/hardware/hwxfsleep.c	optional acpi
-contrib/dev/acpica/components/namespace/nsaccess.c	optional acpi
+contrib/dev/acpica/components/namespace/nsaccess.c	optional acpi \
+	compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
 contrib/dev/acpica/components/namespace/nsalloc.c	optional acpi
 contrib/dev/acpica/components/namespace/nsarguments.c	optional acpi
 contrib/dev/acpica/components/namespace/nsconvert.c	optional acpi