Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
* configure.in: Check for MINGW32_CC and MINGW64_CC.
* configure: Regenerate.
* Makefile.in: Use MINGW32_CC and MINGW64_CC to build 32-bit and
64-bit DLLs. Remove references to mingw and w32api directories.
* cyglsa64.dll: Remove from version control.
* make-64bit-version-with-mingw-w64.sh: Remove.