[Bug target/126368] New: Building GCC 16 20260718 fails on qemu s390x in stage 2 libgcc

[lfoldy at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126368

            Bug ID: 126368
           Summary: Building GCC 16 20260718 fails on qemu s390x in stage
                    2 libgcc
           Product: gcc
           Version: 16.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: lfoldy at gmail dot com
  Target Milestone: ---
            Target: s390x

I got 

../../../gcc-16-20260718/libgcc/libgcc2.c: In function '__divhc3':
../../../gcc-16-20260718/libgcc/libgcc2.c:2887:16: error: invalid suffix '' on
floating constant
 2887 |       if (c == 0.0 && d == 0.0 && (!isnan (a) || !isnan (b)))
      |                ^~~

Stage 1 was OK.

Also, I can build GCC 15 20260717 successfully in the same env.