Fix Windows build
* configure.ac: Require newer automake version. Print configuration summary. (BUILD_REVISION): Fix. (BUILD_REVISION_DEC): Add and use the decimal revision where required. * src/scute.def: Add required 'LIBRARY' statement. * src/versioninfo.rc.in: Use decimal revision.
- Signed-off-by: Justus Winter <justus@g10code.com>