Troubles with Python and ncurses on Cygwin

[jpflori]

Python currently fails/is suboptimal on Cygwin because:

• it does not properly detect readline which is only installed as a shared library, patch "2.7.3-dylib.patch" from Cygwin package fixes that;
• the curses module is not built because of undefined refs, just passing -lcurses when linking is not enough, one should add -ltinfo;
• it segfault at startup when loading the readline module, not sure why. It looks exactly as what is reported at ​http://trac.macports.org/ticket/29496 . Rebuilding ncurses with debug info (including CFLAGS="-O0 -g" which cannot easily be passed right now) does not give much info. The offending line pointed by GCC is "char *result = exit_attribute_mode;"; maybe some dark magic going on as reported in ​http://lists.gnu.org/archive/html/bug-ncurses/2006-10/msg00002.html ; please not that on Cygwin the stack is small by default but playing a little bit with that did not really help. Further info: ncurses 5.7 is fine, ncurses 5.8 fails in the same way.