Prepare for using gpgme.
* m4/gpgme.m4: New. * src/Makefile.am (payprocd_CFLAGS, payprocd_LDADD): Add GPGME flags. * src/payprocd.c: Include gpgme.h. (main): Init gpgme. * configure.ac (NEED_GPGME_VERSION): New.
We require 1.9 because this is anyway new software and thus it does
not harm to require what is current.
- Signed-off-by: Werner Koch <wk@gnupg.org>