Re: Getting GCJ to work under Windows/MinGW/MSYS

[Joerg Brunsmann <joerg_brunsmann at yahoo dot de>]

Hi,

based on the work of Ranjit patches one can build a mingw hosted and 
targeted gcc 3.2 on Windows NT SP6a with these instructions:

1. From http://sourceforge.net/project/showfiles.php?group_id=2435 
   download binutils 2.13-20020903-1, mingw-runtime 2.2, w32api 2.0,
   MSYS 1.0.7-2 and mingw 1.1 
2. From http://sourceforge.net/projects/mingwrep/ download libregex 0.12 
3. Install mingw1.1 to c:\mingw
4. Install binutils, mingw-runtime, w32api and libregex to c:\mingw
5. Install mysys to c:\msys\1.0
6. Start c:\msys\1.0\msys.bat
7. Run these commands

   $ cd /c
   $ mkdir gcc3.2

8. Download the patched GCC 3.2 (gcc-3.2-20020817-1.src.tar.gz) from 
   http://sourceforge.net/project/showfiles.php?group_id=2435 and the
   gcc-java source package (gcc-java-3.2.tar.gz) from a site listed 
   at http://gcc.gnu.org/mirrors.html and put these files in "/c/gcc3.2"

9. Run these commands

   $ cd /c/gcc3.2
   $ mkdir build
   $ gunzip *.tar.gz
   $ tar xfv gcc-3.2-20020817-1.src.tar
   $ mv gcc-3.2-20020817-1 gcc-3.2
   $ tar xfv gcc-java-3.2.tar

10. Copy all files from Ranjit's attachment 
    http://gcc.gnu.org/ml/java/2002-09/msg00072.html 
    to the build directory "/c/gcc3.2/build"

11. Run these commands

   $ cd /c/gcc3.2/gcc-3.2
   $ patch -p0 -b < ../build/mypatches.diff
   $ cd ../build
   $ cfggcc.sh
   $ mkgcc.sh

12. Run

   $ make prefix=/mygcc install

13. Install the same versions of binutils, mingw-runtime and w32api that were used to 
    build GCC into "/mygcc"

14. Edit a file HelloWorld.java

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

15. Compile and run 

   $ /mygcc/bin/gcj --main=HelloWorld -g0 -o hello HelloWorld.java
   $ ./hello

16. Volunteer to try out some win32 awt files from

    http://www.kaffe.org/cgi-bin/viewcvs.cgi/kaffe/libraries/clib/awt/win32/

    or try out this

    http://www-106.ibm.com/developerworks/java/library/j-nativegui/?loc=j

Jörg

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