[CMake] avoid substitution of semicolon

[Tim Blechmann]

hi all,

i am trying to write a ctest script, compiling for different OSX architectures. 
the CMAKE_OSX_ARCHITECTURES option uses the semicolon to distinguish between 
architectures, but my attempts to generate the argument string with semicolons 
haven't been successful, it seems they are not escaped:

foreach(ARCH ppc i386 x86_64 "ppc\;i386" "i386\;x86_64" "ppc\;i386\;x86_64")
  set(x -DCMAKE_OSX_ARCHITECTURES=${ARCH})
  message (${x})
endforeach()

gives me:
-DCMAKE_OSX_ARCHITECTURES=ppc
-DCMAKE_OSX_ARCHITECTURES=i386
-DCMAKE_OSX_ARCHITECTURES=x86_64
-DCMAKE_OSX_ARCHITECTURES=ppci386
-DCMAKE_OSX_ARCHITECTURES=i386x86_64
-DCMAKE_OSX_ARCHITECTURES=ppci386x86_64

any idea how i could create the correct argument string?

thanks, tim

-- 
tim at klingt.org
http://tim.klingt.org

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