[CMake] generalizing SET_TARGET_PROPERTIES & DEFINE_SYMBOL

[Lloyd Hilaiel]

Hey all,

(NOTE: assumptions made based on behavior of cmake version 2.2-patch 3)

I understand the intention of this pair is to support the generation
of static libs & shared libs on windows, but would generalizing it a
bit hurt?

My thoughts are:
1) defining a symbol for a specific target should affect all built files
   regardless of the type of target (in 2.2-3 it seems to be ignored for
   static library targets)
2) defining multiple symbols per target should be possible
3) there should be a way to specify what the define should be set to
   (other than "1")

The main problem I'm having is:
SET_TARGET_PROPERTIES(${TARGET} DEFINE_SYMBOL FOO)

does not suggest to me the real behavior, which seems to be:
"set FOO for compilation of files which will be rolled into ${TARGET}
 iff ${TARGET} is a shared library target".

bad assumptions?  not enough information?  just plain dumb? :)

best, 
lloyd

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