Cmake CMAKE_BUILD_TYPE specification

本文详细解释了在CMake环境中遇到未指定构建类型时的常见问题,并提供了解决方法,帮助开发者在不同的开发阶段选择合适的构建模式,如用于调试的Debug模式和用于发布产品的Release模式。

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That’s because no build type has been specified to CMake. The build type is a feature most IDE have, it allows you to compile your program in “debug” mode, for easily single-stepping through it with a debugger, or in “release” mode, with speed optimization enabled.

To fix this you simply need to specify a build type in the CMakeLists.txt file, in this way:


if( NOT CMAKE_BUILD_TYPE )
  set( CMAKE_BUILD_TYPE Debug CACHE STRING
       "Choose the type of build, options are: None Debug Release RelWithDebInfo
MinSizeRel."
       FORCE )
endif()

when cmake is run without specifying the build type using -D CMAKE_BUILD_TYPE, it is the Debug mode that is selected as the default.

CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool. CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool. CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly. Missing variable is: CMAKE_C_COMPILER_ENV_VAR CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly. Missing variable is: CMAKE_C_COMPILER CMake Error: Could not find cmake module file: C:/Users/dell/Desktop/tryserver/tryserver/xlnt-master/xlnt-master/build/CMakeFiles/3.1.1/CMakeCCompiler.cmake CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly. Missing variable is: CMAKE_CXX_COMPILER_ENV_VAR CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly. Missing variable is: CMAKE_CXX_COMPILER CMake Error: Could not find cmake module file: C:/Users/dell/Desktop/tryserver/tryserver/xlnt-master/xlnt-master/build/CMakeFiles/3.1.1/CMakeCXXCompiler.cmake CMake Error at CMakeLists.txt:2 (project): No CMAKE_C_COMPILER could be found. Tell CMake where to find the compiler by setting the CMake cache entry CMAKE_C_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH. CMake Error at CMakeLists.txt:2 (project): No CMAKE_CXX_COMPILER could be found. Tell CMake where to find the compiler by setting the CMake cache entry CMAKE_CXX_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH. CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage Configuring incomplete, errors occurred!
05-31
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