Re: [tcljava-user] TclBlend build problems using MSYS on WinNT

[Mo D. <md...@un...>]

On Tue, 08 Apr 2003 15:29:53 -0600
rja...@nm... (Robert E. Jackson) wrote:

> nm /c/jdk1.3.1_07/lib/jvm.lib | grep JNI_ ->
> 00000000 I __imp__JNI_CreateJavaVM
> 00000000 T _JNI_CreateJavaVM
> 00000000 I __imp__JNI_GetCreatedJavaVMs
> 00000000 T _JNI_GetCreatedJavaVMs
> 00000000 I __imp__JNI_GetDefaultJavaVMInitArgs
> 00000000 T _JNI_GetDefaultJavaVMInitArgs
>
> In the jvm.lib file I did notice
> 
> _JNI_GetCreatedJavaVMs near jvm.dll
> 
> But jvm.dll is <jvm>/jre/bin/classic which is in the PATH
> but nowhere in the configure data.

So, I don't see anything that is obviously wrong here. The .lib
file should tell the runtime linker to pull in jvm.dll at runtime,
but that has nothing to do with this problem.

I remember reading this page about linking problems with
gcc and JNI:

http://www.inonit.com/cygwin/jni/invocationApi/archive.html

Could you try downloading this .a file and trying to link with
it instead of the JVM supplied jvm.lib? I thought gcc could
handle this without special hand holding, but perhaps this
is the problem.

http://www.inonit.com/cygwin/jni/invocationApi/libjvm.dll.a

Just create a .c file like the configure script does and then try to
link it using the same command line args:

% cat jni.c
#include <jni.h>
int main () { JNI_GetCreatedJavaVMs(NULL,0,NULL); return 0; }

% cc -o jni.exe -g -O2 -I/c/jdk1.3.1_07/include -I/c/jdk1.3.1_07/include/win32 \
jni.c /c/jdk1.3.1_07/lib/jvm.lib

And then try it with -L. -ljvm instead of the jvm.lib path after saving the libjvm.dll.a
in the build dir.

> Is cygwin messing up the path???

This has nothing to do with Cygwin. I don't think it is a path issue
either. It is a compiler issue. Say, what was the URL for the JDK
that you downloaded? I might be able to reproduce the error if
on my system if I use the same JDK you used.

Mo