simple java compilation

[Nic Ferrier]

I'm trying to set up a simple java project (for GNU as it happens)
which uses autotools and I'm having problems.

I've got ac working but I can't get automake to build a Makefile that
will do anything. Here's the rough outline of my Makefile.am


 # Makefile.am for GNU JAXP.

 # The java source files that make up the project
 GNUJAXP_JAVASRC = source/gnu/xml/aelfred2/JAXPFactory.java \
 .
 .
 .
 source/org/xml/sax/helpers/XMLReaderFactory.java

 JARFILE = gnujaxp.jar

 data_DATA = ${JARFILE}

 BUILT_SOURCES = ${JARFILE}

 ${JARFILE}: $(GNUJAXP_JAVASOURCES)
         @echo $? | address@hidden@ \
                    address@hidden@ \
                          ./jarcompiler $^


 # Remove jar file
 clean-local:
         rm -f ${JARFILE}

 # End of Makefile.am


The jarcompiler script is of my own making. It compiles the source
files echoed to it into a jar file (as specified as the program
argument).


The generated Makefile.in has the following variables and targets, as
you'd expect:


 JARFILE = gnujaxp.jar
 data_DATA = ${JARFILE}
 DATA = $(data_DATA)

 all-am: Makefile $(DATA)


 ${JARFILE}: $(GNUJAXP_JAVASOURCES)
        @echo $? | address@hidden@ \
                   address@hidden@ \
                         ./jarcompiler $^


And when I run autoconf to generate the Makefile I get those same
targets, with the ac variables resolved.

When I run Make however, it complains that there is nothing to do for
all-am.


I've tried not using the variable for the target name and as the
value of the data_DATA variables and the BUILT_SOURCES variable; to
no effect.


Can anybody help me work out what I'm doing wrong?

I'm using automake v1.7.



Nic Ferrier