https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86553
--- Comment #15 from The Written Word <bugzilla-gcc at thewrittenword dot com> --- Created attachment 44443 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44443&action=edit gcc/config/rs6000/aix53.h patch Similar to r227907 but for AIX 5.3 Have used this to successfully build gcc-8.1.0 on AIX 5.3.