* Makefile.in (DLL_OFILES): Add base64.o. * common.din: Export __b64_ntop and __b64_pton. * posix.sgml (std-bsd): Add __b64_ntop and __b64_pton. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* x86_64.din: Move strtold definition... * common.din: ...to here.
* x86_64.din: New file. * common.din: New file. * cygwin.din: Delete. * cygwin64.din: Delete. * gendef: Rework to take options rather than using positional parameters. Accept multiple files as input.