MFH: r529993

• Fix runtime for gcc rpath. [1] This is a regression of something that was working in the past. Please keep the _GCC_RUNTIME handling even if removing USE_GCC as it may come back again in the future and be forgotten.
• Fix build on 11.3 with ports ssl. [2]

PR: 245048 [1]
PR: 243315 [2]
Submitted by: John Hein <jcfyecrayz at liamekaens.com> [2]

Approved by: portmgr (implicit)