Support for the ARM 64 bit CPU architecture (aarch64) was introduced in autoconf 2.69. mysql++ appears to use an earlier version of autoconf, preventing its being built. This can be fixed in of three ways (In order of preference): 1. Work with upstream to migrate the package to autoconf 2.69. 2. Rerun autoconf or autoreconf in %prep or %build prior to running configure. 3. Apply the patch at http://ausil.fedorapeople.org/aarch64/mysql++/mysql++-aarch64.patch which updates config.guess and config.sub to recognize aarch64.
As obviously this package (upstream) is mostly dead I will not spent much time on it and will use 3.
Package: mysql++-3.1.0-12.fc19 Tag: f19 Status: complete Package: mysql++-3.1.0-12.fc20 Tag: f20 Status: complete