Scons building with includes from subdirectories

Question

What code do you have to write in SConstruct file, so that on build all included classes in subdirectories compile? At the moment my SConstruct file looks like this:

VariantDir('build', '.')
env=Environment(CPPPATH=['#'],
                CPPDEFINES=[],
                LIBS=['-lpng', '-lassimp', '-lglfw3', '-lGLEW', '-lGLU', '-lGL', '-lX11', '-lXxf86vm', '-lXrandr', '-lpthread', '-lXi'],
                CXXFLAGS="-std=c++11")
env.Program(target='exec_test', source=[Glob('build/*.cpp')])

And when i build my project, i get undefined reference to errors when calling methods in classes that are in subdirectories. If I move the classes to the root directory, then i get no errors.

Note: building in another directory has nothing to do with this! I tried building in the root directory, but that did not change anything! :)

Answer 1

The SCons Glob() function is not recursive, so you'll have to add each sub-directory in the source list, as follows:

env.Program(target='exec_test', source=[Glob('build/*.cpp'),
                                        Glob('build/subdir1/*.cpp',
                                        Glob('build/subdir2/*.cpp'])

This should work, or you could consider creating a hierarchical build whereby you create a SConscript script in each sub-directory.