gnatmake: could not write mapping file

gnatmake: could not write mapping file

[Achim]

Hello,

I've just installed GNAT GPL 2011 on a virtual Windows XP partition
(Virtual Box on a native Mac OS X).
I've all my sources in a shared folder.
All programs compile and build well with native Mac OS X and virtual
Ubuntu. But on the virtual Windows XP I get the message

   gnatmake: could not write mapping file

when trying to compile or build.
This seems to be a simple configuration problem discussed here several
times before, but I can't find a solution.

Many thanks for any help

-- 
Achim

Re: gnatmake: could not write mapping file

[Achim]

Achim schrieb:
> Hello,
>
> I've just installed GNAT GPL 2011 on a virtual Windows XP partition
> (Virtual Box on a native Mac OS X).
> I've all my sources in a shared folder.
> All programs compile and build well with native Mac OS X and virtual
> Ubuntu. But on the virtual Windows XP I get the message
>
> gnatmake: could not write mapping file
>
> when trying to compile or build.
> This seems to be a simple configuration problem discussed here several
> times before, but I can't find a solution.
>
> Many thanks for any help
>

Hello,

I had my object_dir and exec_dir in the shared folder too.
After I placedc:\project\giads3\build\ folders on the local C: drive
the build works fine. The source is still in the shared folder.

So I think this issue is solved.
Nevertheless I would appreciate a hint why the error occurred.

-- 
Achim

Re: gnatmake: could not write mapping file

[Gautier write-only]

On 22 déc, 20:46, Achim <joachim.schro...@web.de> wrote:

> So I think this issue is solved.
> Nevertheless I would appreciate a hint why the error occurred.

Just guessing:
- there is an issue with the path given for mapping files (absolute/
relative)
- the shared drive has trouble with temporary files or the like
(happens with some network drives)
Anyway, the use of mapping file is there for speeding up the build, so
it should make sense only on a fast drive (local hard disk or RAM
disk), in most of the cases.
You have probably the -C[=xxx] option in the gnatmake command, just
remove it or the "=xxx" and you'll be happy!

  -C       Cache source mappings: invoke compiler with temp mapping
file
  -C=mapp  Cache source mappings: invoke compiler with mapping file
mapp
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