r21868 - gnucash/branches/2.4 - [r21867]Reverse the test for HAVE_DBI

[John Ralls]

Author: jralls
Date: 2012-01-20 16:10:47 -0500 (Fri, 20 Jan 2012)
New Revision: 21868
Trac: http://svn.gnucash.org/trac/changeset/21868

Modified:
   gnucash/branches/2.4/configure.ac
Log:
[r21867]Reverse the test for HAVE_DBI

ac_cv_header_dbi_dbi_h is set only if want_dbi is true, so testing for
!= no succeeds if dbi isn't enabled -- which is not what we want.