[erlang-questions] Java error making docs in R15B01

[Richard O'Keefe]

I downloaded R15B01.
./configure --prefix=$HOME/local
reported that fop was missing,
so I downloaded Apache FOP (fop-1.0-bin.tar),
set that up (but apparently not quite right),
went back to otp_src_R15B01, and did

./configure --prefix=$HOME/local
make

I was a little surprised that the make step
apparently did not build the documentation.
So I then did
make docs

All went well up to this step:

date=`date +"%B %e %Y"`; \
        xsltproc \
         --stringparam docgen "/home/cshome/o/ok/Downloads/otp_src_R15B01/lib/erl_docgen" \
         --stringparam gendate "$date" \
         --stringparam appname "stdlib" \
         --stringparam appver "1.18.1" \
         --xinclude --stringparam specs_file "`pwd`/specs.xml" \
         -path /home/cshome/o/ok/Downloads/otp_src_R15B01/lib/erl_docgen/priv/dtd \
         -path /home/cshome/o/ok/Downloads/otp_src_R15B01/lib/erl_docgen/priv/dtd_html_entities \
           /home/cshome/o/ok/Downloads/otp_src_R15B01/lib/erl_docgen/priv/xsl/db_pdf.xsl book.xml > ../pdf/stdlib-1.18.1.fo
fop -fo ../pdf/stdlib-1.18.1.fo -pdf ../pdf/stdlib-1.18.1.pdf
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/fop/cli/Main
Caused by: java.lang.ClassNotFoundException: org.apache.fop.cli.Main
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
make[3]: *** [../pdf/stdlib-1.18.1.pdf] Error 1
make[2]: *** [docs] Error 2
make[1]: *** [docs] Error 2
make: *** [docs] Error 2


By the way, are the DTDs used in building Erlang/OTP documentation
*documented* anywhere?


Y'know, generating LaTeX looks better and better...