remove unused typedef
remove unused typedefs - exposed by saucy g++ warnings
scons: support passing multiple paths to PATH_REMOVE option - useful to strip - after the fact - paths that might come from pkg-config calls to cairo - closes #1980
MinGW support for SConstruct script. Build now properly detects MinGW and finds dependencies correctly.
format update
Properly Initialize mingwbuild variable.
Added singleton unit test to check for multiple instances across multiple dynamic libraries.
Updates for supporting 64bit MinGW build on Windows 7+ via GNU tools.
Final MinGW 64 bit enhancements for Windows 7+ and Server 2008+