build: Generate hash for integrity check with hmac256.
* configure.ac [ENABLE_HMAC_BINARY_CHECK]: Check objcopy. (USE_HMAC_BINARY_CHECK): New Automake conditional. * src/Makefile.am (libgcrypt.la.done): New target. [USE_HMAC_BINARY_CHECK] (libgcrypt.so.hmac): Compute the hash. [USE_HMAC_BINARY_CHECK] (libgcrypt.la.done): Add .hmac section.
- GnuPG-bug-id: T5550
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>