build probs w/libgcj: java-array.h not found

[Joerg Brunsmann]

David Brownell <mojojojo@pacbell.net> wrote:

> So I guess I'd say accurate build instructions should be found
> through the FAQ, as well as part of the distribution(s).

FWIW I sat down and documented the way I used to build gcj/libgcj:

http://www.informatik.fernuni-hagen.de/import/pi3/joerg/gcj/howto.html

or as simple text:

 1. Get a GCC snapshots from 

 ftp://gcc.cygnus.com/pub/egcs/snapshots/index.html

 They are made about once a week. 

 2. Get a Libgcj snapshots from

 ftp://sourceware.cygnus.com/pub/java/snapshot

 They are made nightly.

 3. Make a compile directory

   $ mkdir compile

 4. Move the snapshots into the compile dir, e.g.

   $ cd compile
   $ mv ../egcs-19991110.tar.gz .
   $ mv ../libgcj-snapshot-1999-11-12.tar.gz .
   $ gunzip *.gz
   $ tar xfv *.tar
   $ ln -s egcs-19991102 egcs
   $ ln -s libgcj-snapshot-1999-11-12 libgcj

 5. Compile and install egcs/gcj

   $ cd egcs
   $ make objdir
   $ cd objdir
   $ ../configure --enable-threads=posix --prefix=/home/joerg/gcc \ 
      --enable-java-gc=boehm --with-as=/opt/gnu/bin/as \
      --with-ld=/opt/gnu/bin/ld
   $ make bootstrap
   $ make install

 If you compile under Linux you could omit the last two options. Under
 Solaris you'll need them. If you omit '--prefix' the compiled source will 
 be installed under /usr/local. For more information about installing 
 egcs and/or configuration options see:

 http://egcs.cygnus.com/install/index.html

 6. Set the Path to the newly installed gcc

   $ setenv PATH /home/joerg/gcc/bin:$PATH

 Be sure to use the path with you gave the configure script
 with '--prefix'.

 Test the existence with

   $ gcj -v

 7. Compile and install libgcj

  $ cd ../libgcj
  $ mdir objdir
  $ cd objdir
  $ ../configure --enable-threads=posix --prefix=/home/joerg/libgcj \
    --enable-java-gc=boehm --with-as=/opt/gnu/bin/as --with-ld=/opt/gnu/bin/ld

 Again, the last two options are needed for Solaris.

  $ make
  $ make install

 Make sure you configured both gcj and libgjc with the same garbarge collector 
 and with the same thread package. If you use the default for gcj/egcs (no 
 configure option) you have to use --enable-java-gc=no for libgcj.

 8. Adjust you environment

 Edit a file env.csh:

 setenv PATH /home/joerg/gcc/bin:$PATH
 setenv LD_LIBRARY_PATH /home/joerg/libgcj/lib
 setenv CLASSPATH /home/joerg/libgcj/share/libgcj.zip

   $ source env.csh

 9. Copy the libgcj.spec to you current directory
   
   $ cp /home/joerg/libgcj/lib/libgcj.spec .

 10. Edit a file HelloWorld.java

   public class HelloWorld {
     public static void main(String [] args) {
       System.out.println("Hello");
     }
   }

 11. Compile and run HelloWorld

  $ gcj --main=HelloWorld -o HelloWorld HelloWorld.java
  $ ./HelloWorld