Determining if the Q_WS_WIN exist failed with the following output:
Change Dir: /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/make "cmTryCompileExec2970188241/fast"
/usr/bin/make -f CMakeFiles/cmTryCompileExec2970188241.dir/build.make CMakeFiles/cmTryCompileExec2970188241.dir/build
make[1]: Entering directory `/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec2970188241.dir/CheckSymbolExists.cxx.o
/usr/bin/c++    -I/usr/include/qt4    -o CMakeFiles/cmTryCompileExec2970188241.dir/CheckSymbolExists.cxx.o -c /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In function ‘int main(int, char**)’:
/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: ‘Q_WS_WIN’ was not declared in this scope
   return ((int*)(&Q_WS_WIN))[argc];
                   ^
make[1]: Leaving directory `/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp'
make[1]: *** [CMakeFiles/cmTryCompileExec2970188241.dir/CheckSymbolExists.cxx.o] Error 1
make: *** [cmTryCompileExec2970188241/fast] Error 2

File /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:
/* */
#include <QtCore/qglobal.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef Q_WS_WIN
  return ((int*)(&Q_WS_WIN))[argc];
#else
  (void)argc;
  return 0;
#endif
}

Determining if the Q_WS_QWS exist failed with the following output:
Change Dir: /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/make "cmTryCompileExec3727086150/fast"
/usr/bin/make -f CMakeFiles/cmTryCompileExec3727086150.dir/build.make CMakeFiles/cmTryCompileExec3727086150.dir/build
make[1]: Entering directory `/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec3727086150.dir/CheckSymbolExists.cxx.o
/usr/bin/c++    -I/usr/include/qt4    -o CMakeFiles/cmTryCompileExec3727086150.dir/CheckSymbolExists.cxx.o -c /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In function ‘int main(int, char**)’:
/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: ‘Q_WS_QWS’ was not declared in this scope
   return ((int*)(&Q_WS_QWS))[argc];
                   ^
make[1]: *** [CMakeFiles/cmTryCompileExec3727086150.dir/CheckSymbolExists.cxx.o] Error 1
make[1]: Leaving directory `/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp'
make: *** [cmTryCompileExec3727086150/fast] Error 2

File /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:
/* */
#include <QtCore/qglobal.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef Q_WS_QWS
  return ((int*)(&Q_WS_QWS))[argc];
#else
  (void)argc;
  return 0;
#endif
}

Determining if the Q_WS_MAC exist failed with the following output:
Change Dir: /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/make "cmTryCompileExec996044179/fast"
/usr/bin/make -f CMakeFiles/cmTryCompileExec996044179.dir/build.make CMakeFiles/cmTryCompileExec996044179.dir/build
make[1]: Entering directory `/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec996044179.dir/CheckSymbolExists.cxx.o
/usr/bin/c++    -I/usr/include/qt4    -o CMakeFiles/cmTryCompileExec996044179.dir/CheckSymbolExists.cxx.o -c /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In function ‘int main(int, char**)’:
/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: ‘Q_WS_MAC’ was not declared in this scope
   return ((int*)(&Q_WS_MAC))[argc];
                   ^
make[1]: *** [CMakeFiles/cmTryCompileExec996044179.dir/CheckSymbolExists.cxx.o] Error 1
make[1]: Leaving directory `/home/user/bin/keepassx/build/CMakeFiles/CMakeTmp'
make: *** [cmTryCompileExec996044179/fast] Error 2

File /home/user/bin/keepassx/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:
/* */
#include <QtCore/qglobal.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef Q_WS_MAC
  return ((int*)(&Q_WS_MAC))[argc];
#else
  (void)argc;
  return 0;
#endif
}