Running CMake on Windows

Question

I am currently trying to start CMake to work on my Windows 7 (64-bit) system. I want to compile TagLib for future use with the Qt application I'm working on. I would like to compile it with MinGW (and not Visual C ++, as in this other question ).

I download the installer (cmake-2.8.3-win32-x86.exe) and install it (I also want to add CMake to my path). Then I go to the directory where the CMakeLists.txt file is located and cmake . starts cmake . . Then he gives me this gigantic mistake.

 C:\Users\Joel\Downloads\taglib-1.6.3>cmake . CMake Warning at CMakeLists.txt:1 (project): To use the NMake generator, cmake must be run from a shell that can use the compiler cl from the command line. This environment does not contain INCLUDE, LIB, or LIBPATH, and these must be set for the cl compiler to work. -- The C compiler identification is unknown -- The CXX compiler identification is unknown CMake Warning at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/Platform/Windows-cl.cmake: 28 (ENABLE_LANGUAGE): To use the NMake generator, cmake must be run from a shell that can use the compiler cl from the command line. This environment does not contain INCLUDE, LIB, or LIBPATH, and these must be set for the cl compiler to work. Call Stack (most recent call first): C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeCInformation.cmake:60 (INCLUDE) CMakeLists.txt:1 (project) CMake Error: your RC compiler: "CMAKE_RC_COMPILER-NOTFOUND" was not found. Please set CMAKE_RC_COM PILER to a valid compiler path or name. -- Check for CL compiler version -- Check for CL compiler version - failed -- Check if this is a free VC compiler -- Check if this is a free VC compiler - yes -- Using FREE VC TOOLS, NO DEBUG available -- Check for working C compiler: cl CMake Warning at CMakeLists.txt:2 (PROJECT): To use the NMake generator, cmake must be run from a shell that can use the compiler cl from the command line. This environment does not contain INCLUDE, LIB, or LIBPATH, and these must be set for the cl compiler to work. CMake Warning at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/Platform/Windows-cl.cmake: 28 (ENABLE_LANGUAGE): To use the NMake generator, cmake must be run from a shell that can use the compiler cl from the command line. This environment does not contain INCLUDE, LIB, or LIBPATH, and these must be set for the cl compiler to work. Call Stack (most recent call first): C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeCInformation.cmake:60 (INCLUDE) CMakeLists.txt:2 (PROJECT) CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeRCInformation.cmake:22 (GET_FILENAME_COMPONENT): get_filename_component called with incorrect number of arguments Call Stack (most recent call first): C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/Platform/Windows-cl.cmake:28 (ENABLE_LANG UAGE) C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeCInformation.cmake:60 (INCLUDE) CMakeLists.txt:2 (PROJECT) CMake Error: CMAKE_RC_COMPILER not set, after EnableLanguage CMake Error: your C compiler: "cl" was not found. Please set CMAKE_C_COMPILER to a valid compiler path or name. CMake Error: Internal CMake error, TryCompile configure of cmake failed -- Check for working C compiler: cl -- broken CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:52 (MESSAGE): The C compiler "cl" is not able to compile a simple test program. It fails with the following output: CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:1 (project) CMake Error: your C compiler: "cl" was not found. Please set CMAKE_C_COMPILER to a valid compiler path or name. CMake Error: your CXX compiler: "cl" was not found. Please set CMAKE_CXX_COMPILER to a valid compi ler path or name. -- Configuring incomplete, errors occurred! C:\Users\Joel\Downloads\taglib-1.6.3> 

I was surprised that he erupted so much, given that he advertises himself as a cross-platform make.

I tried installing INCLUDE, LIB and LIBPATH (Windows environment variables) all in my MinGW binary directory (C: \ MinGW \ bin), but still gave me the same error. I also tried setting CMAKE_C_COMPILER and CMAKE_CXX_COMPILER to the g ++ location (C: \ MinGW \ bin \ g ++).

Does anyone know what is going on here?

DECISION:

In the tibur clause, I ran the cmake GUI to create make files. Then I went into the taglib directory of the directory and ran mingw32-make.exe to do the actual build.

Answer 1

The default generator for Windows seems to be installed in NMake. Try using:

 cmake -G "MinGW Makefiles" 

Or use the graphical interface and select MinGW Makefiles when a generator request appears. Remember to clear the directory in which you tried to run cmake, or delete the cache in the GUI. Otherwise, it will try again with NMake.

Answer 2

There is vcvars32.bat in your VisualStudio installation directory. You can add a cmd.exe call at the end of this batch program and run it. From this shell, you can use cmake or cmake-gui, and cl.exe will be known as cmake