[Bug go/98402] New: [11 Regression] libgo build broken on arm-linux-gnueabi

[Bug go/98402] New: [11 Regression] libgo build broken on arm-linux-gnueabi

[doko at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402

            Bug ID: 98402
           Summary: [11 Regression] libgo build broken on
                    arm-linux-gnueabi
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: doko at debian dot org
                CC: cmang at google dot com
  Target Milestone: ---

seen with trunk 20201219 on arm-linux-gnueabihf:

runtime_sysinfo.go:800:29: error: floating-point exponent too large to
represent
  800 | const ___FLT32_NORM_MAX__ = 3.4028234663852886e+3832
      |                             ^
runtime_sysinfo.go:4593:24: error: floating-point exponent too large to
represent
 4593 | const ___FLT32_MAX__ = 3.4028234663852886e+3832
      |                        ^
make[6]: *** [Makefile:2967: runtime.lo] Error 1
make[6]: *** Waiting for unfinished jobs....

configured with:

         --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2
         --prefix=/usr
         --with-gcc-major-version-only
         --program-suffix=-11
         --program-prefix=arm-linux-gnueabihf-
         --enable-shared
         --enable-linker-build-id
         --libexecdir=/usr/lib
         --without-included-gettext
         --enable-threads=posix
         --libdir=/usr/lib
         --enable-nls
         --enable-bootstrap
         --enable-clocale=gnu
         --enable-libstdcxx-debug
         --enable-libstdcxx-time=yes
         --with-default-libstdcxx-abi=new
         --enable-gnu-unique-object
         --disable-libitm
         --disable-libquadmath
         --disable-libquadmath-support
         --enable-plugin
         --enable-default-pie
         --with-system-zlib
         --enable-libphobos-checking=release
         --with-target-system-zlib=auto
         --enable-objc-gc=auto
         --enable-multiarch
         --enable-multilib
         --disable-sjlj-exceptions
         --with-arch=armv7-a
         --with-fpu=vfpv3-d16
         --with-float=hard
         --with-mode=thumb
         --disable-werror
         --enable-multilib
         --enable-checking=yes
         --build=arm-linux-gnueabihf
         --host=arm-linux-gnueabihf
         --target=arm-linux-gnueabihf

make target is profiledbootstrap-lean

[Bug go/98402] [11 Regression] libgo build broken on arm-linux-gnueabi

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402

--- Comment #1 from Ian Lance Taylor <ian at airs dot com> ---
Odd.  What version of mpfr do you have installed?

[Bug go/98402] [11 Regression] libgo build broken on arm-linux-gnueabi

[doko at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402

--- Comment #2 from Matthias Klose <doko at debian dot org> ---
4.1.0, no change since July.

[Bug go/98402] [11 Regression] libgo build broken on arm-linux-gnueabi

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Ian Lance Taylor <ian@gcc.gnu.org>:

https://gcc.gnu.org/g:03ea48ff27fd40b04b148f7006a02513a887ad0d

commit r11-6297-g03ea48ff27fd40b04b148f7006a02513a887ad0d
Author: Ian Lance Taylor <iant@golang.org>
Date:   Mon Dec 21 16:17:23 2020 -0800

    Go frontend: ensure mpfr exponent range is large enough for Go

            PR go/98402
            * go-lang.c (go_langhook_init): Force MPFR exponent range to be
            large enough to support Go constants.

[Bug go/98402] [11 Regression] libgo build broken on arm-linux-gnueabi

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402

Ian Lance Taylor <ian at airs dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #4 from Ian Lance Taylor <ian at airs dot com> ---
This should be fixed now.