(only scons-3.7 / scons-v3.0.5-2.7 is available in rawhide)

[filiperosset@raw compat-tolua++]$ scons-2 --version
SCons by Steven Knight et al.:
        script: v3.0.5, 2019-08-03 00:00:00, by _reproducible on _reproducible
        engine: v3.0.5, 2019-08-03 00:00:00, by _reproducible on _reproducible
        engine path: ['/usr/lib/python2.7/site-packages/SCons']
Copyright (c) 2001 - 2019 The SCons Foundation

[filiperosset@raw compat-tolua++]$ scons-3.7 --version
SCons by Steven Knight et al.:
        script: v3.0.5, 2019-08-03 00:00:00, by _reproducible on _reproducible
        engine: v3.0.5, 2019-08-03 00:00:00, by _reproducible on _reproducible
        engine path: ['/usr/lib/python3.7/site-packages/SCons']
Copyright (c) 2001 - 2019 The SCons Foundation

[filiperosset@raw compat-tolua++]$ scons-v3.0.5-
scons-v3.0.5-2.7  scons-v3.0.5-3.7

[filiperosset@raw compat-tolua++]$ scons-v3.0.5-3.7 --version
SCons by Steven Knight et al.:
        script: v3.0.5, 2019-08-03 00:00:00, by _reproducible on _reproducible
        engine: v3.0.5, 2019-08-03 00:00:00, by _reproducible on _reproducible
        engine path: ['/usr/lib/python3.7/site-packages/SCons']
Copyright (c) 2001 - 2019 The SCons Foundation

[filiperosset@raw compat-tolua++]$ scons-3 --version
-bash: scons-3: command not found