Scons Install() only working with --install-sandbox
-
19-09-2019 - |
Question
I have an SConstruct file for a python module I'm building:
import distutils.sysconfig
env = Environment(CPPPATH=['include', distutils.sysconfig.get_python_inc()],
CPPFLAGS='-ggdb', SWIGFLAGS=['-python'],
SWIGPATH=['include'])
env.ParseConfig( 'net-snmp-config --libs --cflags' )
env.Append( LIBS = 'pthread' )
backend_interface = 'src/backend_interface.c'
backend_thread = 'src/backend_thread.c'
python_wrapper = 'src/backend_thread.i'
lib = env.SharedLibrary( target = "_rpdu_backend",
source = [ backend_interface,
backend_thread, python_wrapper ],
SHLIBPREFIX='' )
env.Install( distutils.sysconfig.get_python_lib(),
[ lib, 'src/rpdu_backend.py'] )
Running:
$ scons --install-sandbox=./sandbox
results in the library and associated .py module being installed in ./sandbox/usr/local/lib/python2.6/site-packages. If I simply run:
# scons
as root, nothing is installed to /usr/local/lib/python2.6/site-packages.
Why isn't scons building the install target without the sandbox option?
Solution
So after digging around a lot, it turns out that the best way to do this is as follows:
import distutils.sysconfig
env = Environment(CPPPATH=['include', distutils.sysconfig.get_python_inc()],
CPPFLAGS='-ggdb', SWIGFLAGS=['-python'],
SWIGPATH=['include'])
env.ParseConfig( 'net-snmp-config --libs --cflags' )
env.Append( LIBS = 'pthread' )
backend_interface = 'src/backend_interface.c'
backend_thread = 'src/backend_thread.c'
python_wrapper = 'src/backend_thread.i'
lib = env.SharedLibrary( target = "_rpdu_backend",
source = [ backend_interface,
backend_thread, python_wrapper ],
SHLIBPREFIX='' )
inst = env.Install( distutils.sysconfig.get_python_lib(),
[ lib, 'src/rpdu_backend.py'] )
env.Alias( "install", inst )
env.Depends( inst, lib )
Ignore( '.', inst )
This sets up a fake target, which, when called, forces SCons outside its usual "build only in the current directory" approach. It also makes sure the build is done before the install, and provides a convenient uninstall using:
# scons install --clean
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow