Document PG_TEST_EXTRA=libpq_encryption and also check 'kerberos'

In the libpq encryption negotiation tests, don't run the GSSAPI tests
unless PG_TEST_EXTRA='kerberos' is also set. That makes it possible to
still run most of the tests when GSSAPI support is compiled in, but
there's no MIT Kerberos installation.

1 files changed, 13 insertions, 1 deletions

diff --git a/doc/src/sgml/regress.sgml b/doc/src/sgml/regress.sgml
index 6a27aae3195..d7e78204adc 100644
--- a/doc/src/sgml/regress.sgml
+++ b/doc/src/sgml/regress.sgml
@@ -259,7 +259,7 @@ make check-world -j8 >/dev/null
    variable <varname>PG_TEST_EXTRA</varname> to a whitespace-separated list,
    for example:
 <programlisting>
-make check-world PG_TEST_EXTRA='kerberos ldap ssl load_balance'
+make check-world PG_TEST_EXTRA='kerberos ldap ssl load_balance libpq_encryption'
 </programlisting>
    The following values are currently supported:
    <variablelist>
@@ -305,6 +305,18 @@ make check-world PG_TEST_EXTRA='kerberos ldap ssl load_balance'
     </varlistentry>
 
     <varlistentry>
+     <term><literal>libpq_encryption</literal></term>
+     <listitem>
+      <para>
+       Runs the test <filename>src/interfaces/libpq/t/005_negotiate_encryption.pl</filename>.
+       This opens TCP/IP listen sockets. If <varname>PG_TEST_EXTRA</varname>
+       also includes <literal>kerberos</literal>, additional tests that require
+       an MIT Kerberos installation are enabled.
+      </para>
+     </listitem>
+    </varlistentry>
+
+    <varlistentry>
      <term><literal>wal_consistency_checking</literal></term>
      <listitem>
       <para>