id summary reporter owner description type status milestone component version severity resolution keywords cc 11125 Preprocessor definitions in wrap_python.hpp don't check for cygwin64 chris.nixon@… Ralf W. Grosse-Kunstleve "Preprocessor definitions in /libs/python/include/boost/python/detail/wrap_python.hpp assume that cygwin is always 32bit (defining length of long as 4 and number of bits in a word as 32). cygwin64 defines __LP64__, so it can be used to discriminate between cygwin32 and cygwin64. Attached patch adds 64bit support. " Bugs closed To Be Determined python USE GITHUB Boost 1.57.0 Problem wontfix