[Bug target/98152] New: [11 regression] /usr/bin/env: 'python': No such file or directory

[Bug target/98152] New: [11 regression] /usr/bin/env: 'python': No such file or directory

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

            Bug ID: 98152
           Summary: [11 regression] /usr/bin/env: 'python': No such file
                    or directory
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
                CC: kito.cheng at gmail dot com
  Target Milestone: ---
            Target: riscv*-*-*

/usr/bin/env: 'python': No such file or directory
--with-abi= is not supported for ISA
make[2]: *** [Makefile:4441: configure-stage1-gcc] Error 1

Why is a newly added python script written in python2???

[Bug target/98152] [11 regression] /usr/bin/env: 'python': No such file or directory

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

Andreas Schwab <schwab@linux-m68k.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.0
           Keywords|                            |build

[Bug target/98152] [11 regression] /usr/bin/env: 'python': No such file or directory

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2020-12-05
                 CC|                            |marxin at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
The problem is that Python should not be needed during the build process of
GCC.
Some time ago, I wanted to generate options-related files with Python. But the
decision was made that it's quite a big dependency.

[Bug target/98152] [11 regression] /usr/bin/env: 'python': No such file or directory

[kito at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

Kito Cheng <kito at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |kito at gcc dot gnu.org

--- Comment #2 from Kito Cheng <kito at gcc dot gnu.org> ---
The script has test with python2 and python3, but seems like require python as
essential for building RISC-V is inappropriate, I'll send patch later to made
this become optional.

[Bug target/98152] [11 regression] /usr/bin/env: 'python': No such file or directory

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
btw, if you require python install.texi should list it as prerequesite (on
riscv).  Note I strongly encourage to replace with sth else.

[Bug target/98152] [11 regression] /usr/bin/env: 'python': No such file or directory

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kito Cheng <kito@gcc.gnu.org>:

https://gcc.gnu.org/g:4aaf33718f09daf1cd2864b3db07faa2e44642ff

commit r11-5835-g4aaf33718f09daf1cd2864b3db07faa2e44642ff
Author: Kito Cheng <kito.cheng@sifive.com>
Date:   Sun Dec 6 11:39:22 2020 +0800

    PR target/98152: Checking python is available before using

    We'll try to canonicalize the arch string for --with-arch,
    and the script is written in python, however it will turns out
    GCC require python to build for RISC-V port, it's not expect as
    the GCC requirement.

    So this patch is made this as optional, detect python and only use it
    when it available, it won't break any functionality with out doing
    canonicalization, just might build one more redundant multi-lib.

    gcc/ChangeLog:

            PR target/98152
            * config.gcc (riscv*-*-*): Checking python, python3 or python2
            is available, and skip doing with_arch canonicalize if no python
            available.

[Bug target/98152] [11 regression] /usr/bin/env: 'python': No such file or directory

[kito at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98152

Kito Cheng <kito at gcc dot gnu.org> changed:

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

--- Comment #5 from Kito Cheng <kito at gcc dot gnu.org> ---
I just made python as optional, the functional is not changed, just could be
build one more redundant multi-lib.