GCVE-110-MAGEIA-2020-132

This update provides gcc 8.4.0 stable release, containing important fixes for regressions and serious bugs in GCC 8.3 with more than 209 bugs fixed since the previous release. It also fixes at least the following security issue: every time the collect2 process is interrupted via a signal it can delete random files from the hard drive, since the signal handler may be using the path name, and passes it to the unlink function before it is initialized.