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Please, help. It's JNI_CreateJavaVM trouble again  RSS feed

 
Greenhorn
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I don't know what to do.
I have jdk1.4.
When I try to compile test.c I've got this:
test.o(.text+0x19): undefined reference to `JNI_GetDefaultJavaVMInitArgs'
test.o(.text+0x5a): undefined reference to `JNI_CreateJavaVM'
I've specified all header files but don't know what else gcc wants
p.s.: -ljava -ljvm couldn't be found in OS.
What wrong ?
 
Ranch Hand
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Hi Andrey,
I am not sure whether this is correct. The jni.h file can be located in the <JAVA_HOME>/include directory, have you included this path in your build file. Probably the compiler is not able to locate this include file. But I guess that if the compiler cannot locate an include file, the message will be something else.
This is just a guess. Hope this helps
 
Andrey Safonov
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Thanks for answer!
But the_trouble is somewere else :
gcc -I/usr/local/jdk/include -I/usr/local/j2sdk1.4.0/include/linux -L/usr/local/jdk/jre/lib test.c
test.c: In function `main':
test.c:34: warning: passing arg 2 of `JNI_CreateJavaVM' from incompatible pointer type
/tmp/ccALNCFh.o: In function `main':
/tmp/ccALNCFh.o(.text+0x19): undefined reference to `JNI_GetDefaultJavaVMInitArgs'
/tmp/ccALNCFh.o(.text+0x5a): undefined reference to `JNI_CreateJavaVM'
p.s.: jni.h resides in .../jdk/include.
[ February 20, 2003: Message edited by: Andrey Safonov ]
 
Vijayakumar Arya
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Hi Andrey,
I checked at the GCC site and found a same problem and it has been resolved.
Have a look at this page:
http://gcc.gnu.org/ml/gcc-help/2000-09/msg00144.html

Taken from that answer:
Note that if your X libs are not in /usr/X11R6/lib, you will need to
change the -L options.

cccc
I feel the linker is not able to resolve the function, I mean it is not able to locate. Hope this helps
 
It is sorta covered in the JavaRanch Style Guide.
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