[Bug libgomp/64635] darwin produces libgomp-plugin-host_nonshm.1.dylib but tries to load libgomp-plugin-host_nonshm.so.1

[howarth at bromo dot med.uc.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64635

--- Comment #18 from howarth at bromo dot med.uc.edu ---
Created attachment 34609
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34609&action=edit
proposed fix with aix and hpux support added

Add support to handle hpux suffix nomenclature.