* gnu/packages/patches/cyrus-sasl-ac-try-run-fix.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/cyrus-sasl.scm (cyrus-sasl)[origin]: Apply it.
[native-tools]: Add autoconf, automake and libtool.
[arguments]: Run autoconf to apply m4 modification in patch above.