Log Message:
gcc7[-libs]: updated to 7.4.0

7.4.0:
Bug-fix release.
This \ 
[https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=7.4] \ 
is the list of problem reports (PRs) from GCC's bug tracking system that are \ 
known to be fixed in the 7.4 release. This list might not be complete (that is, \ 
it is possible that some PRs that have been fixed are not listed here).