http://trac.atomiclabs.com/ticket/1132
http://trac.atomiclabs.com/ticket/1132

for PION_STATIC_LIBS: Use 64-bit versions of static libraries
if they are available



acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core