Update to the 20190228 snapshot of GCC 7.4.1. Simplify the creation of the multilib-related tree on powerpc64 and avoid leaving an empty directory behind on the way. [1] PR: 235964, 231804 [1] Discussed with: Piotr Kubaj <pkubaj@anongoth.pl> [1]
head/lang/gcc7-devel/Makefile
head/lang/gcc7-devel/distinfo