[MacPorts] #58208: gcc8 @8.3.0: binary, does not pull in correct version of isl

[MacPorts]

#58208: gcc8 @8.3.0: binary, does not pull in correct version of isl
--------------------+--------------------
 Reporter:  Tatsh   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.5.4
 Keywords:          |       Port:  gcc8
--------------------+--------------------
 The distributed binary pulls in isl, but this provides
 {{{libisl.15.dylib}}} and gcc8 is expecting to see {{{libisl.18.dylib}}}.

 OpenBLAS+gcc8 fails to build:

 /opt/local/bin/gfortran-mp-8 -O3 -m128bit-long-double -Wall -frecursive
 -m64 -fPIC -mavx2 -c -o spotrf
 2.o spotrf2.f
 dyld: Library not loaded: /opt/local/lib/libisl.19.dylib
   Referenced from: /opt/local/libexec/gcc/x86_64-apple-darwin18/8.3.0/f951
   Reason: image not found
 gfortran-mp-8: internal compiler error: Abort trap: 6 signal terminated
 program f951

-- 
Ticket URL: <https://trac.macports.org/ticket/58208>
MacPorts <https://www.macports.org/>
Ports system for macOS