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JNI/gcc problem (solved)
- From: "David P. Caldwell" <inonit at inonit dot com>
- To: <cygwin at cygwin dot com>
- Date: Tue, 8 Jan 2002 16:02:06 -0500
- Subject: JNI/gcc problem (solved)
Thanks to Chuck Wilson:
In order for this to work, the --add-stdcall-alias option has to be passed
to the linker on the gcc command line. So, referring to
http://www.inonit.com/cygwin/jni/helloWorld/c.html, the gcc command line
would need to be changed to:
gcc -mno-cygwin -I$jdk/include -I$jdk/include/win32 -Wl,--add-stdcall-alias
-shared -o HelloWorld.dll HelloWorld.c
I'll update the online version of the tutorial as soon as I can.
David P. Caldwell wrote:
> I was having trouble figuring out how to build Java/JNI programs with
> Cygwin. There were a number of threads in the mailing list about it, and
> some were helpful, but it still took a great deal of slogging.
> After I got it working, I put a tutorial on the web
> (http://www.inonit.com/cygwin/) on how to do it.
> If you are an expert on these matters (and don't feel like reading the
> tutorial), one question came up. I was unable to link my examples into
> using gcc. (Or, more properly, I was able to link it into a DLL, but the
> Java virtual machine would invariably complain that the function it was
> looking for did not exist.) I ended up using LCC-Win32. There's some
> information about what occurred (and my cygcheck -s output) at
I don't have Java installed on this machine so I can't test this myself.
But, try the following additional options to gcc:
If that doesn't work, then try again with the above option, but in addition:
Does any of that help?
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