[icedtea6][RFC] Fix: xalan/xerces dependencies issues in F15 build

[Danesh Dadachanji]

Hi,

Here is a fix for the xalan/xerces dependencies problem with building in 
F15. It checks if the xml jar is needed and then symlinks accordingly. 
I've tested it on F13-15 and it worked fine.

ChangeLog:
+2011-07-06  Danesh Dadachanji <ddadacha at redhat.com>
+  * Makefile.am: Use explicit xml-commons locations if necessary.
+  * acinclude.m4: Added explicit xml-commons check.
+  (IT_CHECK_IF_INSTANTIABLE): Added generic macro to instantiate any
+  class. Paramaters are the define, name of the class, paramaters
+  for instatiation and (optional) classpath.
+  * configure.ac: Invoke IT_FIND_XML_COMMONS_APIS_JAR macro after
+  IT_FIND_XERCES2_JAR, assigns XML_COMMONS_APIS_JAR if necessary.
+

I added a macro similar to IT_CHECK_FOR_CLASS called 
IT_CHECK_IF_INSTANTIABLE that instantiates the second paramater and 
assigns $1_INSTANTIABLE=yes if no exceptions occur, no otherwise. This 
is in addition to the AM_CONDITIONAL being set (as in the original 
macro). It also takes in an optional classpath paramater.

- I couldn't use the existing one because class.toString() wasn't enough 
to throw the same exception as in the build. You have to instantiate 
org.apache.xerces.dom.DeferredDocumentImpl in order to do this.

- I needed the classpath paramater because I had to explicitly specify 
the xalan/xerces jars, the other macro only checks the current dir.

- The conditional created is also not accessible in configure.ac so I 
had to create the dummy $1_INSTANTIABLE var to do the check there. The 
conditional can only be accessed in Makefile.am, whcih can't access the 
function that finds the path of xml-commons. Hence putting the checks 
there isn't easy either.

- I could only find the Fedora/Gentoo-specific paths to where the 
xml-commons jar is located. Does anyone know others?

Regards,
Danesh
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Makefile-xalan-deps.patch
Type: text/x-patch
Size: 5080 bytes
Desc: not available
Url : http://mail.openjdk.java.net/pipermail/distro-pkg-dev/attachments/20110607/776bf037/Makefile-xalan-deps.patch