No shared libraries with performance build

[Jan Stolarek]

I've done a performance build today on a 64 bit linux and the shared libraries weren't build. I had to comment out these 3 lines in "perf" section of build.mk to get the shared libraries built:

ifeq "$(PlatformSupportsSharedLibs)" "YES"
GhcLibWays += dyn
endif

Is that expected?

Janek