SCons can't pick the compiler (MinGW) [duplicate]

StackOverflow https://stackoverflow.com/questions/21242206

  •  30-09-2022
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Question

I have a simple SConstruct file with the following code

path = ['C:\\MinGW\\bin']
env = Environment(ENV = {'PATH' : path})

Program(target = 'myprogram', source = ['main.cpp'])

running 'scons' on cmd gives the following error message:

cl /Fomain.obj /c main.cpp /TP /nologo
'cl' is not recognized as an internal or external command,
operable program or batch file.
scons: *** [main.obj] Error 1
scons: building terminated because of errors.

It looks like SCons does not pick my compiler (MinGW). What am I doing wrong? I'm on Windows 7 64bit.

Was it helpful?

Solution

After setting tools variable in environment you should use env.Program('...') instead of Program('...'). Below is my working SConstruct for mingw:

path = ['C:\\Dev\\MinGW\\x64-4.9.2-posix-seh-rt_v3-rev1\\mingw64\\bin']
temp = 'C:\\Temp'

env = Environment(ENV={'PATH': path, 'TEMP': temp}, 
                  tools=['mingw'])

env.Program('solver-tikhonov.cpp')

OTHER TIPS

SCons is trying to build with the default Windows tools, namely cl, which is the visual studio compiler. You need to tell it to use the mingw toolset, as follows:

path = ['C:\\MinGW\\bin']
env = Environment(tools=['mingw'], ENV = {'PATH' : path})

After doing this, if it still cant find the mingw compiler, you can set it as follows:

env.Replace(CC='path/to/mingw/cc/compiler',
            CXX='path/to/mingw/c++/compiler')
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