Yaakov (Cygwin/X) wrote: > Dave, > > Trying gcj-4 with the standard java hello world program: > > $ gcj-4 -C Hello.java > gcj-4: error trying to exec 'ecj1': execvp: No such file or directory > > $ gcj-4 Hello.java > gcj-4: error trying to exec 'ecj1': execvp: No such file or directory > > Huh?
IIUC, GCJ accepts both java source (.java) and byte code (.class) files and compiles them to native assembly. In order to compile .java files to bytecode, it relies on the Eclipse Java compiler front-end. I do not know yet if the Eclipse Java compiler license is compatible with the Cygwin license, so for the moment I haven't shipped it in the distro. (OTOH it now looks like maybe I could have used it while building libgcj without needing to distribute it.) The advice I have found so far is to download it from ftp://sourceware.org/pub/java/ecj-latest.jar and then use a wrapper script named ecj1 to invoke it: $ cat ecj1 #!/bin/sh gij -cp /bin/ecj.jar \ org.eclipse.jdt.internal.compiler.batch.GCCMain \ ${1+"$@"} However, that doesn't "just work": dkad...@ubik /tmp/java $ gcj-4 -C Hello.java 1 [main] gij 1504 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack) /usr/bin/ecj1: line 4: 1504 Segmentation fault (core dumped) gij -cp /bin/ecj.jar org.eclipse.jdt.internal.compiler.batch.GCCMain ${1+"$@"} dkad...@ubik /tmp/java There are bugs in the java distro right now which I'll try and fix before the next major release (but not for the rapid-respin I'm liable to do first). cheers, DaveK -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
