Check compiler version, use -std=c++03 rather than stlport by default for
developerstudio12.5

Developer studio uses more stack space than gcc,
so a couple of mtr tests needed adjustment.

Fix broken code for stack check on sparc (sp_head::execute)

Allocate more DEFAULT_THREAD_STACK when using developerstudio on sparc.

Backport:
Bug#25148549 REVISIT COMPILER FLAGS FOR ORACLE DEVELOPER STUDIO

Change-Id: I0aad1a4f549c40e66541ebc2ed8add075e1365c3