On Thu, 2010-01-21 at 06:52 +0100, Michael Wild wrote: > On 21. Jan, 2010, at 24:55 , Mateusz Loskot wrote: > > > Hi, > > > > I'm trying to perform the following checks: > > > > check_function_exists(std::pow HAVE_POW) > > > > or > > > > check_symbol_exists(std::pow cmath HAVE_POW) > > > > but it looks that both macros have troubles > > with resolving std:: namespace. > > > > The documentation is not very clear about that. > > > > Or I should stick to try_compile based tests? > > > > Best regards, > > > > > AFAIK check_symbol_exists is used for preprocessor symbols. check_function_exists looks for C functions, not C++. Also notice, that older C++ standard libraries and non-compliant C++ compilers don't use the namespace std. You might want to have a look at CMakeBackwardCompatibilityCXX.cmake or the various other modules it uses. > > > HTH > > Michael > I thought that check_symbol_exists() was meant to check for the *declaration* of a symbol (e.g. a function) in a header file; and that check_function_exists() was meant to check for the *definition* of a function (i.e. exists as symbol in a library).
Best regards, Marcel Loose. _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
