[CMake] hpux (cma vs. pthreads)

[George Neill]

Hi All,

  I am trying to compile a multi-threaded app (using pthreads) on hpux 11.23 IA

-- CMAKE_SYSTEM ...............................HP-UX-B.11.23
-- CMAKE_SYSTEM_NAME...........................HP-UX
-- CMAKE_SYSTEM_VERSION .......................B.11.23
-- CMAKE_C_COMPILER: ........................../opt/aCC/bin/cc
-- CMAKE_CXX_COMPILER: ......................../opt/aCC/bin/aCC

It seems as though FindThreads.cmake is not complete.  I do _not_ want
to link with the cma thread library
(http://docs.hp.com/en/5187-0172/ch10s03.html).  There doesn't seem to
be an obvious way to tell FindThreads.cmake this.  I am thinking it
should prefer -lpthread over -lcma, if it exists.  Anyone have
suggestions on the best way to change FindThreads.cmake to handle
this?

TIA,
George.