cmake：指定编译器的问题

我有这个CMakeLists.txt文件的问题：

cmake_minimum_required(VERSION 2.6) SET(CMAKE_C_COMPILER C:\MinGW\bin\gcc) SET(CMAKE_CXX_COMPILER C:\MinGW\bin\g++) project(cmake_test) add_executable(a.exe test.cpp)

调用cmake： cmake -G "MinGW Makefiles"

我得到：

c:cmake_test>cmake -G "MinGW Makefiles" . -- The C compiler identification is GNU 4.6.1 CMake Warning (dev) at CMakeFiles/CMakeCCompiler.cmake:1 (SET): Syntax error in cmake code at C:/cmake_test/CMakeFiles/CMakeCCompiler.cmake:1 when parsing string C:MinGWbingcc Invalid escape sequence M Policy CMP0010 is not set: Bad variable reference Syntax is an error. Run "cmake --help-policy CMP0010" for policy details. Use the cmake_policy command to set the policy and suppress this warning. Call Stack (most recent call first): CMakeLists.txt:12 (project) This warning is for project developers. Use -Wno-dev to suppress it. -- The CXX compiler identification is GNU 4.6.1 CMake Warning (dev) at CMakeFiles/CMakeCXXCompiler.cmake:1 (SET): Syntax error in cmake code at C:/cmake_test/CMakeFiles/CMakeCXXCompiler.cmake:1 when parsing string C:MinGWbing++ Invalid escape sequence M Policy CMP0010 is not set: Bad variable reference Syntax is an error. Run "cmake --help-policy CMP0010" for policy details. Use the cmake_policy command to set the policy and suppress this warning. Call Stack (most recent call first): CMakeLists.txt:12 (project) This warning is for project developers. Use -Wno-dev to suppress it. -- Check for working C compiler: C:MinGWbingcc CMake Error at C:/cmake_test/CMakeFiles/CMakeCCompiler.cmake:1 (SET): Syntax error in cmake code at C:/cmake_test/CMakeFiles/CMakeCCompiler.cmake:1 when parsing string C:MinGWbingcc Invalid escape sequence M Call Stack (most recent call first): CMakeLists.txt:2 (PROJECT) CMake Error: CMAKE_C_COMPILER not set,after EnableLanguage CMake Error: Internal CMake error,TryCompile configure of cmake Failed CMake Error: your C compiler: "C:MinGWbingcc" was not found. Please set CMAKE_C_COMPILER to a valid compiler path or name. CMake Error: your CXX compiler: "C:MinGWbing++" was not found. Please set CMAKE_CXX_COMPILER to a valid compiler path or name. -- Configuring incomplete,errors occurred!

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C:MinGWbing++ /C/MinGW/bin/g++

结果相同。 双引号也没有帮助，要么。

当然，编译器存在于指定的目录中。

谢谢你的提示。

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您必须使用四个反斜杠才能在SET获得文字反斜杠：

SET(CMAKE_C_COMPILER C:\\MinGW\\bin\\gcc) SET(CMAKE_CXX_COMPILER C:\\MinGW\\bin\\g++)

无论您是否在引用中使用引号，这都适用。

由于这很丑陋，所以最好使用正斜杠：

SET(CMAKE_C_COMPILER C:/MinGW/bin/gcc) SET(CMAKE_CXX_COMPILER C:/MinGW/bin/g++)