Determining if the Q_WS_WIN exist failed with the following output:
Change Dir: /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/gmake "cmTryCompileExec2851170453/fast"
/usr/bin/gmake -f CMakeFiles/cmTryCompileExec2851170453.dir/build.make CMakeFiles/cmTryCompileExec2851170453.dir/build
gmake[1]: Вхожу у каталог "/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp"
/usr/bin/cmake -E cmake_progress_report /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec2851170453.dir/CheckSymbolExists.cxx.o
/usr/bin/c++    -I/usr/lib/qt/include    -o CMakeFiles/cmTryCompileExec2851170453.dir/CheckSymbolExists.cxx.o -c /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In function ‘int main(int, char**)’:
/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: ‘Q_WS_WIN’ was not declared in this scope
   return ((int*)(&Q_WS_WIN))[argc];
                   ^
gmake[1]: *** [CMakeFiles/cmTryCompileExec2851170453.dir/CheckSymbolExists.cxx.o] Помилка 1
gmake[1]: Залишаю каталог "/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp"
gmake: *** [cmTryCompileExec2851170453/fast] Помилка 2

File /home/laslo/Downloads/flacon-1.0.1/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/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/gmake "cmTryCompileExec3235478212/fast"
/usr/bin/gmake -f CMakeFiles/cmTryCompileExec3235478212.dir/build.make CMakeFiles/cmTryCompileExec3235478212.dir/build
gmake[1]: Вхожу у каталог "/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp"
/usr/bin/cmake -E cmake_progress_report /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec3235478212.dir/CheckSymbolExists.cxx.o
/usr/bin/c++    -I/usr/lib/qt/include    -o CMakeFiles/cmTryCompileExec3235478212.dir/CheckSymbolExists.cxx.o -c /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In function ‘int main(int, char**)’:
/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: ‘Q_WS_QWS’ was not declared in this scope
   return ((int*)(&Q_WS_QWS))[argc];
                   ^
gmake[1]: *** [CMakeFiles/cmTryCompileExec3235478212.dir/CheckSymbolExists.cxx.o] Помилка 1
gmake[1]: Залишаю каталог "/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp"
gmake: *** [cmTryCompileExec3235478212/fast] Помилка 2

File /home/laslo/Downloads/flacon-1.0.1/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/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/gmake "cmTryCompileExec958069583/fast"
/usr/bin/gmake -f CMakeFiles/cmTryCompileExec958069583.dir/build.make CMakeFiles/cmTryCompileExec958069583.dir/build
gmake[1]: Вхожу у каталог "/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp"
/usr/bin/cmake -E cmake_progress_report /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec958069583.dir/CheckSymbolExists.cxx.o
/usr/bin/c++    -I/usr/lib/qt/include    -o CMakeFiles/cmTryCompileExec958069583.dir/CheckSymbolExists.cxx.o -c /home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In function ‘int main(int, char**)’:
/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: ‘Q_WS_MAC’ was not declared in this scope
   return ((int*)(&Q_WS_MAC))[argc];
                   ^
gmake[1]: *** [CMakeFiles/cmTryCompileExec958069583.dir/CheckSymbolExists.cxx.o] Помилка 1
gmake[1]: Залишаю каталог "/home/laslo/Downloads/flacon-1.0.1/build/CMakeFiles/CMakeTmp"
gmake: *** [cmTryCompileExec958069583/fast] Помилка 2

File /home/laslo/Downloads/flacon-1.0.1/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
}