[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
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                 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...).