[Bug c/57357] New: Error with '-mno-sse' and include wchar.h

[thutt at vmware dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57357

            Bug ID: 57357
           Summary: Error with '-mno-sse' and include wchar.h
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thutt at vmware dot com

The following example shows a defect in gcc 4.8 when using the
'-mno-sse' command line option: an error is reported when including
wchar.h.

Compile with:

  gcc-4.8 -m64 -O1 -mno-sse -c -o /tmp/gungla.o /tmp/gungla.c

Sample Code:

  #include <wchar.h>

Sample Output:

  In file included from /tmp/gungla.c:1:0:
  /opt/gcc-4.8.0/lib/gcc/x86_64-linux5.0/4.8.0/include-fixed/wchar.h: In
function 'wcstod':
  /opt/gcc-4.8.0/lib/gcc/x86_64-linux5.0/4.8.0/include-fixed/wchar.h:563:1:
error: SSE register return with SSE disabled
   { return __wcstod_internal (__nptr, __endptr, 0); }
   ^