File hsqldb-apidocs.patch of Package hsqldb

diff --git a/build/build.xml b/build/build.xml
index 3a2b77f..c18fda0 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -130,6 +130,7 @@ examples:
           There is no performance penalty, since the javadoc task regenerates
           everything each run.
       -->
+     <mkdir dir="doc/apidocs"/>
      <copy todir="doc/apidocs">
        <!-- IMPORTANT:
             Add a fixcrlf if we add non-binary files to doc/apidocs. -->