[Bug target/79112] New: [SH] libgo/go/exp/terminal/util.go:70:23: error: integer constant overflow

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79112

            Bug ID: 79112
           Summary: [SH] libgo/go/exp/terminal/util.go:70:23: error:
                    integer constant overflow
           Product: gcc
           Version: 6.3.1
               URL: https://people.debian.org/~glaubitz/gcc-6_6.3.0-2+sh4_
                    sh4.build
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: glaubitz at physik dot fu-berlin.de
                CC: gcc-bugzilla at mkarcher dot dialup.fu-berlin.de,
                    jrtc27 at jrtc27 dot com, kkojima at gcc dot gnu.org,
                    olegendo at gcc dot gnu.org
  Target Milestone: ---
            Target: sh*-*-*

Trying to build gcc-6 with the Go frontend enabled on SH fails with:

libtool: compile:  /<<PKGBUILDDIR>>/build/./gcc/gccgo
-B/<<PKGBUILDDIR>>/build/./gcc/ -B/usr/sh4-linux-gnu/bin/
-B/usr/sh4-linux-gnu/lib/ -isystem /usr/sh4-linux-gnu/include -isystem
/usr/sh4-linux-gnu/sys-include -isystem /<<PKGBUILDDIR>>/build/sys-include -O2
-g -I . -c -fgo-pkgpath=exp/terminal
../../../src/libgo/go/exp/terminal/terminal.go
../../../src/libgo/go/exp/terminal/util.go  -fPIC -o exp/.libs/terminal.o
../../../src/libgo/go/exp/terminal/util.go:70:23: error: integer constant
overflow
  if ioctl(fd, syscall.TIOCGWINSZ, unsafe.Pointer(&dimensions)) < 0 {
                       ^
Makefile:5541: recipe for target 'exp/terminal.lo' failed
make[6]: *** [exp/terminal.lo] Error 1

Full log available in [1]. This was tested in an up-to-date Debian unstable
environment.

Thanks,
Adrian

> [1] https://people.debian.org/~glaubitz/gcc-6_6.3.0-2+sh4_sh4.build