Issue compiling coefficient functions.

Hi everyone,

due to some problem with ngsxfem compiled on MacOS 10.15 using the standard AppleClang compiler, I have switched to GCC 9.2 (installed via Homebrew). However when I compile CoefficientFunctions with the resulting installation, I get the error g++-9: error: unrecognized command line option '-Qunused-arguments' terminate called after throwing an instance of 'ngcore::Exception' what(): problem calling compiler Caught SIGABRT: usually caused by abort() or assert() Collecting backtrace...

As a workaround, I removed the “'-Qunused-arguments” flag from the ngscxx file manually. However, is there a way of avoiding this issue in the first place?

Best wishes,

This was a clang-only flag, we removed it.