OSX/scons: make 10.5 our lowest env and remove older conditionals
-rw-r--r-- 82632 CMakeLists.txt
-rw-r--r-- 302 COPYING
-rw-r--r-- 12874 GNUmakefile
-rw-r--r-- 42973 SConstruct
drwxr-xr-x - build_files
drwxr-xr-x - doc
drwxr-xr-x - extern
drwxr-xr-x - intern
drwxr-xr-x - release
drwxr-xr-x - source