On Sat, Aug 12, 2017 at 9:26 AM, Ian Lepore <i...@freebsd.org> wrote:
> On Fri, 2017-08-11 at 22:41 +0000, Ryan Libby wrote:
>> Author: rlibby
>> Date: Fri Aug 11 22:41:24 2017
>> New Revision: 322418
>> URL: https://svnweb.freebsd.org/changeset/base/322418
>>
>> Log:
>>   lib/msun: avoid referring to broken LDBL_MAX
>>
>>   LDBL_MAX is broken on i386:
>>   https://lists.freebsd.org/pipermail/freebsd-numerics/2012-September
>> /000288.html
>>
>>   Gcc has produced +Infinity for LDBL_MAX on i386 and amd64 with -m32
>>   for some time, and newer versions of gcc are now warning that the
>>   "floating constant exceeds range of 'long double'".  Avoid this by
>>   referring to half the value of LDBL_MAX instead.
>>
>>   Reviewed by:        bde
>>   Approved by:        markj (mentor)
>>   Sponsored by:       Dell EMC Isilon
>>
>
> I now get this error when building toolchain for sparc:
>
> cc -isystem 
> /b/staging/freebsd/head/obj/sparc64.sparc64/b/staging/freebsd/head/src/tmp/usr/include
>  -L/b/staging/freebsd/head/obj/sparc64.spar
> c64/b/staging/freebsd/head/src/tmp/usr/lib 
> -B/b/staging/freebsd/head/obj/sparc64.sparc64/b/staging/freebsd/head/src/tmp/usr/lib
>  --sysroot=/b/
> staging/freebsd/head/obj/sparc64.sparc64/b/staging/freebsd/head/src/tmp 
> -B/b/staging/freebsd/head/obj/sparc64.sparc64/b/staging/freebsd/head/
> src/tmp/usr/bin -fPIC -DPIC -g -O2 -pipe 
> -I/b/staging/freebsd/head/src/lib/msun/ld128 
> -I/b/staging/freebsd/head/src/lib/msun/sparc64 -I/b/sta
> ging/freebsd/head/src/lib/msun/src 
> -I/b/staging/freebsd/head/src/lib/libc/include  
> -I/b/staging/freebsd/head/src/lib/libc/sparc64   -MD  -MF.
> depend.catrigl.pico -MTcatrigl.pico -std=gnu99 -fstack-protector-strong 
> -Wsystem-headers -Werror -Wno-pointer-sign -Wno-unknown-pragmas     -
> c /b/staging/freebsd/head/src/lib/msun/src/catrigl.c -o catrigl.pico
> /b/staging/freebsd/head/src/lib/msun/src/catrigl.c:310:1: error: pasting 
> "0x0.8p" and "(" does not give a valid preprocessing token
> /b/staging/freebsd/head/src/lib/msun/src/catrigl.c:310:1: error: exponent has 
> no digits
> /b/staging/freebsd/head/src/lib/msun/src/catrigl.c:310:1: error: pasting ")" 
> and "L" does not give a valid preprocessing token
> /b/staging/freebsd/head/src/lib/msun/src/catrigl.c: In function 
> 'clog_for_large_values':
> /b/staging/freebsd/head/src/lib/msun/src/catrigl.c:310: error: expected ')' 
> before 'L'
> *** [catrigl.pico] Error code 1

Thanks, I see it.  It also shows up on the sparc64 ci build [1].  Let me
see if I can find a quick fix, else I guess we can just back it out for
now.

[1] https://ci.freebsd.org/job/FreeBSD-head-sparc64-build/2534/
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