runnning with dummy Pstream library does not have pthread dependency

For now add it to dummy/Pstream dependency (since libOSspecific is not a shared library)

mentioned in commit 5decf21c9e31c90ad6a08b4fbb44daad6ff3c640

closed

mentioned in commit a587c9d11a86e4081d146ddc897837f8d8971794

reopened

The dependency is now through libOpenFOAM.so (threaded file writing uses pthread). Delete the mpi libPstream.so (but keep the dummy one) and applications will complain:

simpleFoam: symbol lookup error: openfoam/platforms/linux64GccSPDPInt32Opt/lib/libOpenFOAM.so: undefined symbol: pthread_create

assigned to @mark

Should we be compiling with -pthread instead somewhere?

We're using std::thread in OpenFOAM/lnInclude/OFstreamCollator.C. So guess already inside OpenFOAM/Make/options there should be a -lpthread

mentioned in commit 739bc3c4

Added in -pthread.

closed

mentioned in commit 8075804b