[CMake] CheckTypeSize and non-standard headers

Michael Jackson mike.jackson at bluequartz.net
Mon Feb 16 15:14:03 EST 2009


CHECK_SYMBOL_EXISTS(wint_t "runetype.h" HAVE_WINT_T)


message(STATUS "wint_t is available")

Also, check the documentation for the CheckSymbolExists macro.

• CheckSymbolExists: Check if the symbol exists in include files

SYMBOL - symbol
FILES - include files to check
VARIABLE - variable to return result

The following variables may be set before calling this macro to modify  
the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
Defined in: /Users/Shared/Toolkits/CMake-CVS/share/cmake-2.7/Modules/ 

Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio

On Feb 16, 2009, at 2:13 PM, Aaron Turner wrote:

> I'm trying to figure out how to write my CMakeLists.txt file to find
> wint_t under OSX which defines it in /usr/include/runetype.h rather
> then one of the standard headers that CheckTypeSize uses.  I was
> hoping Cmake behaved like autotools where if you first look for the
> header it will automatically include it in future type checks, but
> that doesn't seem to be the case.
> Suggestions?
> -- 
> Aaron Turner
> http://synfin.net/
> http://tcpreplay.synfin.net/ - Pcap editing and replay tools for  
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