[Bug target/88535] sparcv9 gcc 7 causes comparison failure in sparc gcc 8 dwarf2out.o

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535

--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Yes, same for a bootstrap.  You can bootstrap the latter with the former if
> you correctly configure the bootstrap, with explicit --build and CC="gcc
> -m32".

To be more explicit: if you want to bootstrap the 32-bit compiler with the
64-bit system compiler, you must configure like this:

CC="gcc -m32" CXX="g++ -m32" ./configure --build=sparc-sun-solaris2.11

Conversely, if you want to bootstrap the 64-bit compiler with the 32-bit one:

CC="gcc -m64" CXX="g++ -m64" ./configure --build=sparcv9-sun-solaris2.11