Fixed #17584 -- Updated create_template_postgis-debian.sh script for PostgreSQL…

Fixed #17584 -- Updated create_template_postgis-debian.sh script for PostgreSQL 9.1 installs. Thanks akaihola for the initial patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17706 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/ref/contrib/gis/create_template_postgis-debian.sh

 #!/bin/bash
 
+GEOGRAPHY=0
+POSTGIS_SQL=postgis.sql
+
 # For Ubuntu 8.x and 9.x releases.
 if [ -d "/usr/share/postgresql-8.3-postgis" ]
 then
@@ -11,21 +14,24 @@ fi
 if [ -d "/usr/share/postgresql/8.4/contrib" ]
 then
     POSTGIS_SQL_PATH=/usr/share/postgresql/8.4/contrib
-    POSTGIS_SQL=postgis.sql
 fi
 
 # For Ubuntu 10.10 (with PostGIS 1.5)
 if [ -d "/usr/share/postgresql/8.4/contrib/postgis-1.5" ]
 then
     POSTGIS_SQL_PATH=/usr/share/postgresql/8.4/contrib/postgis-1.5
-    POSTGIS_SQL=postgis.sql
     GEOGRAPHY=1
-else
-    GEOGRAPHY=0
+fi
+
+# For Ubuntu 11.10 / Linux Mint 12 (with PostGIS 1.5)
+if [ -d "/usr/share/postgresql/9.1/contrib/postgis-1.5" ]
+then
+    POSTGIS_SQL_PATH=/usr/share/postgresql/9.1/contrib/postgis-1.5
+    GEOGRAPHY=1
 fi
 
 createdb -E UTF8 template_postgis && \
-createlang -d template_postgis plpgsql && \
+( createlang -d template_postgis -l | grep plpgsql || createlang -d template_postgis plpgsql ) && \
 psql -d postgres -c "UPDATE pg_database SET datistemplate='true' WHERE datname='template_postgis';" && \
 psql -d template_postgis -f $POSTGIS_SQL_PATH/$POSTGIS_SQL && \
 psql -d template_postgis -f $POSTGIS_SQL_PATH/spatial_ref_sys.sql && \