pgsql: Revert to using --enable-auto-import in Cygwin builds.

Revert to using --enable-auto-import in Cygwin builds.

Disabling auto-import requires that all libraries we use be careful about
declspecs for exported variables; and it seems they aren't.  This means
that Cygwin will not give us useful info about missing PGDLLIMPORT markers;
but it's probably sufficient that MSVC and Mingw builds do.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/8d6e2d4abf77c422714448e5f4270fdb1a84d973

Modified Files
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src/template/cygwin |    5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)