Issues with rtems_waf on Windows 10 with gccdeps module

[Robin Müller]

Issue can be reproduced by doing the quickstart application build on
Windows 10. The issue are backslashes in the absolute paths of the
dependency paths
which were not stripped from dependency paths on Windows,
causing waf to not recognize them as valid absolute paths. More
specifically, I printed the resulting dependency paths after stripping

C\:/Users/Robin/Documents/RTEMS/rtems-tools/rtems/6/sparc-rtems6/erc32/lib/include/rtems/userenv.h


The backslash at the start causes the issue.
I was able to fix this with the following adaptations (gccdeps.py starting
line 108)

# Now join all the lines together
txt = txt.replace('\\\n', '')

val = txt.strip()
val = [x.replace('\\ ', ' ') for x in re_splitter.split(val) if x]
# This was added to replace backslashes which can cause issues on Windows
if os.name == 'nt':
     val = [x.replace('C:\\', 'C:') for x in re_splitter.split(val) if x]
print(val)
nodes = []
bld = self.generator.bld

I don't know whether this can have other evil side effects, but the waf
build works after that..

Kind Regards
Robin

On Fri, 30 Apr 2021 at 00:30, Vijay Kumar Banerjee <vijay at rtems.org> wrote:

> Hi all,
>
>
> On Thu, Apr 29, 2021 at 3:01 PM Chris Johns <chrisj at rtems.org> wrote:
> >
> > On 30/4/21 5:01 am, Robin Müller wrote:
> > > Yes that is the prefix. The rtems.h file is definitely located at the
> location
> > > in the warning and it works on older commit of rtems_waf (where
> gccdeps.py is
> > > not used).
> > > I briefly looked through the gccdeps.py file and it is doing some
> string
> > > stripping operations.
> > > Maybe that is the issue but I am not sure.
> >
> > Thank you for debugging this and I agree it look like something is a
> little off
> > in gccdeps.
> >
> Yes, I had a patch for that but I think there was a discussion
> upstream between ita1024 and Chris and the conclusion was that the
> patch won't be accepted. I can't find it right now but I could fix
> this problem by using find_or_declare.
>
> @Robin: Please try to use the find function and see if it fixes.
> Here's an example that worked quite nicely in rtems-examples:
>
> https://git.rtems.org/rtems-examples/tree/filesystem/fat_ramdisk/wscript#n34
>
>
> Best regards,
> Vijay
>
> > I will need to try and reproduce this to have a chance of finding it.
> What
> > happens if you remove gccdeps.py? Will that you get past this point?
> >
> > Chris
> > _______________________________________________
> > devel mailing list
> > devel at rtems.org
> > http://lists.rtems.org/mailman/listinfo/devel
>
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