Documented --with-mysql and --with-postgres

@@ -54,14 +54,19 @@ specific configuration options:
 
 
 	Do not build thread-safe libraries.
 	Do not build thread-safe libraries.
 
 
-    --enable-mysql
+    --with-mysql
 
 
 	Enable support for authentication via MySQL. Note that depending
 	Enable support for authentication via MySQL. Note that depending
 	on how your MySQL system is installed, this may require adding
 	on how your MySQL system is installed, this may require adding
 	appropriate directories to the library and include paths, e.g.:
 	appropriate directories to the library and include paths, e.g.:
 
 
 	./configure LIBS='-L/usr/local/mysql/lib' \
 	./configure LIBS='-L/usr/local/mysql/lib' \
-                    CPPLAGS='-I/usr/local/mysql/include' --enable-mysql
+                    CPPLAGS='-I/usr/local/mysql/include' --with-mysql
+
+    --with-postgres
+
+	Enable support for authentication via PostgreSQL. You may 
+        have to explicitly specify LIBS and CPPFLAGS (see above).
 
 
     --enable-mh-utils
     --enable-mh-utils