How to run cmake using MSYS2 without having to configure environment variable on Windows

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I’m trying to use cmake to compile a project written in C++, the project builds smoothly if I use an IDE (tested in Qt Creator and Clion), but need to compile by command line, as I’m setting up the environment for a remote build. 

D:\Workspace\analytics>cmake . -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="C:\msys32\mingw32" -B build
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: C:/msys32/mingw32/bin/gcc.exe
-- Check for working C compiler: C:/msys32/mingw32/bin/gcc.exe -- broken
CMake Error at C:/Program Files/CMake/share/cmake-3.14/Modules/CMakeTestCCompiler.cmake:60 (message):
  The C compiler

    "C:/msys32/mingw32/bin/gcc.exe"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: D:/Workspace/analytics/build/CMakeFiles/CMakeTmp

    Run Build Command(s):C:/msys32/mingw32/bin/mingw32-make.exe cmTC_53d35/fast
    C:/msys32/mingw32/bin/mingw32-make.exe -f CMakeFiles\cmTC_53d35.dir\build.make CMakeFiles/cmTC_53d35.dir/build
    mingw32-make.exe[1]: Entering directory 'D:/Workspace/analytics/build/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_53d35.dir/testCCompiler.c.obj
    C:\msys32\mingw32\bin\gcc.exe    -o CMakeFiles\cmTC_53d35.dir\testCCompiler.c.obj   -c D:\Workspace\analytics\build\CMakeFiles\CMakeTmp\testCCompiler.c
    mingw32-make.exe[1]: *** [CMakeFiles\cmTC_53d35.dir\build.make:65: CMakeFiles/cmTC_53d35.dir/testCCompiler.c.obj] Error 1
    mingw32-make.exe[1]: Leaving directory 'D:/Workspace/analytics/build/CMakeFiles/CMakeTmp'
    mingw32-make.exe: *** [Makefile:120: cmTC_53d35/fast] Error 2




  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:2 (project)


-- Configuring incomplete, errors occurred!
See also "D:/Workspace/analytics/build/CMakeFiles/CMakeOutput.log".
See also "D:/Workspace/analytics/build/CMakeFiles/CMakeError.log".

  • If I set in Windows PATH the Mingw path "C:/msys32/mingw32/bin" the build command works, recognizes the compiler and etc..., but the IDE starts to give error.

  • If I enter through the MSYS2 console I can compile without problems also

I am trying to compile the project using Windows cmd

cmake . -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="C:\msys32\mingw32" -B build

I tried to pass the compiler path gcc and g++

-DCMAKE_C_COMPILER=C:\msys32\mingw32\bin\gcc.exe
-DCMAKE_CXX_COMPILER=C:\msys32\mingw32\bin\g++.exe

But I didn’t succeed either.

How can I call cmake by command line using MSYS2 Mingw to compile the project without having to configure the Mingw path in Windows PATH?

cmake msys2

1 answer

0

Create a cmd to run cmake:

call_cmake.cmd

@echo off

:: nao exporta as variaveis de ambiente para o cmd externo
setlocal

set PATH=path_gcc_mingw;%PATH%

:: chama cmake...

:: etc

To compile, same thing:

make_proj.cmd

@echo off

:: nao exporta as variaveis de ambiente para o cmd externo
setlocal

set PATH=path_gcc_mingw;%PATH%

make

:: etc

Browser other questions tagged cmake msys2

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