[OE-core] [PATCH 1/1] flex: fix m4 issue on target

[Laurentiu Palcu]

Hi Enrico,

On Tue, Nov 05, 2013 at 05:16:45PM +0100, Enrico Scholz wrote:
> 
> 
> Laurentiu Palcu
> <laurentiu.palcu-ral2JQCrhuEAvxtiuMwx3w at public.gmane.org> writes:
> 
> > Flex needs m4 to run (see below) and, since the create_wrapper
> > introduces a bash dependency, export the right m4 path when /etc/profile
> > is sourced by the shell.
> >
> > Snippet from the flex documentation:
> > "The macro processor m4 must be installed wherever flex is installed.
> > <...>
> > m4 is only required at the time you run flex."
> 
> Content at profile.d/ won't be evaluated when program is started without
> a shell (e.g. by 'execlp("flex", "flex", ...)').  
> 
> 
> > [YOCTO #5329]
> 
> This should be solved by defining a correct path for the m4 binary at
> build time.
> 
> EXTRA_OECONF += " ac_cv_path_M4=${M4}"
> EXTRA_OEMAKE += " m4=${M4_class-native}"
This is, indeed, a better solution for the target issue. But, I don't
think we can remove the wrapper scripts for native/nativesdk packages
(as you suggested in bugzilla). And the reason for that are those guys
using sstate from build machines. They'll end up with flex searching for
m4 in a path belonging to the build machine.

I'll prepare a v2.

Laurentiu
> 
> is probably a better solution.
> 
> 
> 
> Enrico
>