To get some insight into what library names SCons is searching for, and in which directories it is searching, Use the --debug=findlibs option. Given the following input SConstruct file:
env = Environment(LIBPATH = ['libs1', 'libs2']) env.Program('prog.c', LIBS=['foo', 'bar'])
And the libraries libfoo.a and libbar.a in libs1 and libs2, respectively, use of the --debug=findlibs option yields:
% scons -Q --debug=findlibs findlibs: looking for 'libfoo.a' in 'libs1' ... findlibs: ... FOUND 'libfoo.a' in 'libs1' findlibs: looking for 'libfoo.so' in 'libs1' ... findlibs: looking for 'libfoo.so' in 'libs2' ... findlibs: looking for 'libbar.a' in 'libs1' ... findlibs: looking for 'libbar.a' in 'libs2' ... findlibs: ... FOUND 'libbar.a' in 'libs2' findlibs: looking for 'libbar.so' in 'libs1' ... findlibs: looking for 'libbar.so' in 'libs2' ... cc -o prog.o -c prog.c cc -o prog prog.o -Llibs1 -Llibs2 -lfoo -lbar