https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106572
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>which blows up the command line for the compilation.
You can use a response file and that won't blow up the command line at all.
That is:
g++ -Q --help=warnings | tail -n +2 | awk '{print $1}' | tr '\n' ' ' >
cxxflags.opt
g++ @cxxflags.opt ....
