svn commit: r297435 - head: still problems for stage 3 when gcc 4.2.1 is avoided (powerpc64 self-hosted build)

[Bryan Drewery]

On 3/31/2016 8:33 PM, Mark Millard wrote:
> I appears that C++ needs its own override for where to find C++ header before looking in the gcc49 specific places.

Yes, the hacks for that are builtin already.  Passing C_INCLUDE_PATH and
others may break it.

> These sorts of odd, hard to avoid dependencies are part of why I asked if there was a standard/recommend assignment to use for CC/XCC: I was hoping there was a known-good way to compile that avoided the issues, possibly by using powerpc64-gcc tools for CC/XCC as well.

You shouldn't need to pass any extra -I/-isystem or env vars for paths.
The problem in this thread was just the ports compiler using
/usr/local/include when not using a --sysroot.  This is only in the
early phase of the build.

Mind trying this patch?

https://people.freebsd.org/~bdrewery/patches/gcc-no-local-include.patch

I assume you are using that port, if not you can apply the same change
to whichever your ports gcc came from.

It removes the /usr/local/include path.  It is somewhat the wrong fix vs
"fixing the order", but the /usr/local/lib path is not in there now and
you must use -rpath with the ports gcc anyhow.  So the ports gcc is
already broken for /usr/local, it should be fully broken or fully fixed,
not half broken to the point of breaking other things.

I'm still just curious if it fixes the problems with "stage 3" finding
the wrong dwarf header, and if removing your own include path hacks
progresses the build further.

-- 
Regards,
Bryan Drewery

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