[CMake] Watcom Support

[J Decker]

To support watcom appropriatly, I think some additional default
concepts need to be added to CMAKE, however, I have recently gotten
cmake and converted a few of my projects to it.  Success in instantly
making in visual studio 2010, mingw, watcom(mostly).  Should check a
few linux box's opinion, but, cmake 2.8 is pretty good, even have my
stuff resembling installable.

But, I'm having some issues with the 'Watcom WMake' support.

debug doesn't seem to work, that is, no debug information is set in
the output, so using the debugger is out of the question.

Windows-wcl386.cmake contains no reference to 'debug all' on any wlink
command.  This would be needed to get debug information itno the
library, and I'm not sure the -d2 is set right on debug
configurations...

Is there really only a set of CMAKE_C_FLAGS_ and _CXX_FLAGS_? no
companion _LD_FLAGS_ ?



probably something like...

${CMAKE_LD_FLAGS_${CMAKE_BUILD_TYPE}}  would reference a set of
configuration type ld flags?



+SET (CMAKE_LD_FLAGS_DEBUG_INIT "debug all")
+SET (CMAKE_LD_FLAGS_MINSIZEREL_INIT "")
+SET (CMAKE_LD_FLAGS_RELEASE_INIT "")
+SET (CMAKE_LD_FLAGS_RELWITHDEBINFO_INIT "debug all")

+/-    "wlink ${CMAKE_LD_FLAGS_${CMAKE_BUILD_TYPE}}
${CMAKE_START_TEMP_FILE} ${CMAKE_WLINK_QUIET} name <TARGET> option
caseexact file {<OBJECTS>} <LINK_LIBRARIES> ${CMAKE_END_TEMP_FILE}")



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Otherwise, code compiled for a library and code compiled for a program
require different flags... so to have a set of CMAKE_C_FLAGS_ by
target type ( LIBRARY, PROGRAM(EXECUTABLE) ) would be useful to define
in the  Windows-wcl386.cmake might be good....

-bd needs to be applied to sources compiled for a library, otherwise
symbols that are unreferenced are deleted when linked.

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