build.xml patch for building under RHEL6

[Jamison Hope <jrh@theptrgroup.com>]

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It would appear that <echo file="a/b/c"> isn't guaranteed to work if the
subdirectories "a" and "a/b" don't exist yet.  In particular, when Kawa
is checked out under RHEL 6, building via Ant 1.7.1 and Java 1.6.0_24
(ugh, don't ask) fails with a FileNotFoundException attempting to open
META-INF/services/javax.script.ScriptEngineFactory.

The fix is to <mkdir dir="META-INF/services"/> before the <echo>, as
in the attached patch.

--
Jamison Hope
The PTR Group
www.theptrgroup.com



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Index: build.xml
===================================================================
--- build.xml	(revision 8883)
+++ build.xml	(working copy)
@@ -855,11 +855,13 @@
   </target>
 
   <target name="script-factory-scheme" if="${-needs-scripting-inf}">
+    <mkdir dir="META-INF/services"/>
     <echo message="kawa.standard.SchemeScriptEngineFactory #Scheme&#xA;"
           append="true"
           file="META-INF/services/javax.script.ScriptEngineFactory"/>
   </target>
   <target name="script-factory-xquery" if="${-needs-scripting-inf-xquery}">
+    <mkdir dir="META-INF/services"/>
     <echo message="gnu.xquery.lang.XQueryScriptEngineFactory #XQuery&#xA;"
           append="true"
           file="META-INF/services/javax.script.ScriptEngineFactory"/>
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 8883)
+++ ChangeLog	(working copy)
@@ -1,3 +1,9 @@
+2016-07-20  Jamison Hope  <jrh@theptrgroup.com>
+
+	* build.xml (script-factory-scheme, script-factory-xquery): Make
+	sure META-INF/services directory exists before writing to
+	META-INF/services/javax.script.ScriptEngineFactory file.
+
 2016-07-13  Per Bothner  <per@bothner.com>
 
 	Replace use of JFreeSVG with VectorGraphics2D library.