ENH: Initial attempt at QNX support. Submitted by Tim Arney.

Modules/Platform/QNX.cmake

+# GCC is the default compiler on QNX 6.3.
+INCLUDE(${CMAKE_ROOT}/Modules/Platform/gcc.cmake)
+
+SET(CMAKE_DL_LIBS "")
+SET(CMAKE_SHARED_LIBRARY_C_FLAGS "")
+SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS "")
+SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared")
+SET(CMAKE_SHARED_LIBRARY_RUNTIME_FLAG "-Wl,-rpath,")
+SET(CMAKE_SHARED_LIBRARY_RUNTIME_FLAG_SEP ":")
+SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
+SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-soname,")