Require 10.9 SDK only for Apple-Clang configurations
On Ubuntu 14.04, the Perl version breaks compatibility with openssl's documentation building configuration. Build without docs, according to https://github.com/openssl/openssl/issues/57
Add freetype2 include dir to qt4
Merge branch 'fix/openssl_new_perl' into fix/OSX10.9
Fix boost compilation if BUILDEM_ADDITIONAL_CXX_FLAGS are not set
Always set the appropriate python path when setting buildem env
Merge branch 'fix/OSX10.9' of https://github.com/chaubold/buildem into fix/OSX10.9

Conflicts:
	BuildSupport.cmake
	boost.cmake