AW: GCC builds with relative searchpaths instead of absolute

[<stefan@franke.ms>]

> -----Ursprüngliche Nachricht-----
> Von: Gcc-help <gcc-help-bounces+bebbo=bejy.net@gcc.gnu.org> Im
> Auftrag von Nuno Silva via Gcc-help
> Gesendet: Mittwoch, 21. September 2022 13:43
> An: gcc-help@gcc.gnu.org
> Betreff: GCC builds with relative searchpaths instead of absolute
> 
> Hello,
> This is my first post in this mailing list, so I apologize if I do anything wrong.
> 
> I'm working on a hobby operating system and, as part of making apps for it,
> I'm trying to port gcc to it. To be clear: I already have my cross compiler, I just
> want to make gcc run inside the OS.
> 
> However, gcc doesn't seem to find cc1, and when I look into the searchdirs it
> shows relative paths (prepended with ".."), which means it would never find
> cc1.
> I'm configuring GCC with the following:
> 
> configure --host=x86_64-toast --prefix=/usr --target=x86_64-toast --with-
> sysroot=/ --with-build-sysroot=<my sysroot dir> --enable-languages=c,c++ --
> enable-initfini-array --disable-multilib --disable-nls --enable-lto --with-
> system-zlib CFLAGS=-O2 CXXFLAGS=-O2
> 
> Then running make all-gcc all-target-libgcc all-target-libcstdc++-v3
> 
> Is there some sort of setting I could use to change the searchdirs to
> absolute?
> 
> Thank you very much for your time.

Really:  --prefix=/usr ???

Installing locally built applications with prefix /usr is a really bad idea as the files installed may easily overwrite files installed by package managers.