The code uses __BEGIN/END_DECLS from glibc's features.h, actually
sys/cdefs.h, which is deprecated. Get rid of it.
Fixed license information.
Fixed musl-fts dependency. It's only valid for musl.
Removed autoreconf as the patch was removed.
Added PKG_INSTALL for consistency between packages.
Added PKG_BUILD_PARALLEL for faster compilation.
Small cleanups for consistency between packages.
Signed-off-by: Rosen Penev <rosenp@gmail.com>