Installing GCJ (MinGW)
Download & install
or you download and install all separately:
gcc-core-3.4.5-20060117-3.tar.gz (MinGW base tools)
gcc-java-3.4.5-20060117-3.tar.gz (Java Compiler)
binutils-2.17.50-20060824-1.tar.gz (MinGW base tools)
mingw-runtime-3.14.tar.gz (MinGW base tools)
w32api-3.11.tar.gz (MinGW base tools)
Shell environment
needed for shell environment support to enable configure or make scripts to run
Character encoding
libIconv (to convert between character encodings)
or if you don’t want to use libIconv:
natIconv (extract and execute the batch script)
Set path
make sure you have the binary (bin) directories of MinGW and MSYS in your path environment
like: “C:\mingw\bin;C:\msys\bin”