strange compile error in scvgarndr.c

[O. Hartmann]

On Mon, 17 Apr 2017 10:14:59 +0200
Gary Jennejohn <gljennjohn at gmail.com> wrote:

> I'm seeing this very strange error when I try to make a kernel using
> sources updated about 5 minutes ago:
> 
> --------------------------------------------------------------
> >>> stage 3.1: building everything  
> --------------------------------------------------------------
> /usr/src/sys/dev/syscons/scvgarndr.c:177:31: error: unused variable
> 'mouse10x16' [-Werror,-Wunused-const-variable]
> static const struct mousedata mouse10x16 = { {
>                               ^
> 1 error generated.
> *** Error code 1
> 
> Even if I add "mpd = &mouse10x16;" before the test for font size in
> various places the compiler spits out this error message.
> 
> Maybe my compiler is too old? I'm using
> cc --version
> FreeBSD clang version 4.0.0 (branches/release_40 296509) (based on LLVM 4.0.0)
> Target: x86_64-unknown-freebsd12.0
> Thread model: posix
> InstalledDir: /usr/bin
> 

I see this error, too, on one box.

/usr/src ist at revision 317077.

Host's OS:

FreeBSD 12.0-CURRENT #13 r316677: Mon Apr 10 14:24:06 CEST 2017 amd64

cc --version:

FreeBSD clang version 4.0.0 (tags/RELEASE_400/final 297347) (based on LLVM
4.0.0) Target: x86_64-unknown-freebsd12.0
Thread model: posix
InstalledDir: /usr/bin