[Bug lto/48724] New: Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[Bug lto/48724] New: Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

           Summary: Lto build of mozilla dies at lto-wrapper: error trying
                    to exec 'make -j1': execvp: No such file or directory
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hubicka@gcc.gnu.org


Hi,
It seems that environment vars set by mozilla build confuse lto-wrapper with:

lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

cut&pasting the compilation command line and executing it by hand works well.

Honza

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-22 09:16:34 UTC ---
Does it set MAKE?  I suppose we need to split (and preserve?) arguments :/

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-04-22 09:24:59 UTC ---
Hmm,
grep didn't seem to find any interesting positives on this.  However I did not
update my mozilla tree since last build that did not reproduce this and nothing
seems to have changed on GCC side.  I think evans got updated, so perhaps it is
feature of new GNU Make to prevent fork bombs?

Mozilla Makefiles do not use "+" clauses and I simply use hard wired -flto=24
setting.

Honza

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-15 23:39:37 UTC ---
Has this been fixed?

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

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

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

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-07 12:30:01 UTC ---
No response and unclear bug.

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[hubicka at ucw dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

--- Comment #5 from Jan Hubicka <hubicka at ucw dot cz> 2012-05-07 23:20:50 UTC ---
> No response and unclear bug.
It is still there.  In lto-wrapper.c we do 
         new_argv[0] = getenv ("MAKE");
and when MAKE is set to something like "make -j" we try to execute it...

Honza

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |NEW
   Last reconfirmed|                            |2012-05-08
         Resolution|INVALID                     |
     Ever Confirmed|0                           |1

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-08 10:15:26 UTC ---
Ok, you didn't state that Mozilla indeed sets MAKE to 'make -j'.  Yes, if that
happens there is a problem.

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Ralf.Wildenhues at gmx dot
                   |                            |de

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-08 13:58:27 UTC ---
Caused by

2010-05-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

       * lto-wrapper.c (run_gcc): Unset MAKEFLAGS and MFLAGS
       before calling make; allow override through $MAKE.
       * doc/invoke.texi (Optimize Options): Document override.

simply checking with access (..., X_OK) of course doesn't work (that doesn't
search the path...).

[Bug lto/48724] Lto build of mozilla dies at lto-wrapper: error trying to exec 'make -j1': execvp: No such file or directory

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48724

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
This no longer happens with recent Firefox builds, but I think it was rather
fixed at Firefox buildsystem...