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In file included from A.c:1:
A.h:2:17: error: jni.h: No such file or directory
In file included from A.c:1:
A.h:15: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
A.c:4: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
What's you really want to do? What is this, from were you get this?
class A
{
static
{ System.loadLibrary("A"); }
public native void print();
public static void main(String[] args)
{
new A().print();
}
}
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class A */
#ifndef _Included_A
#define _Included_A
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: A
* Method: print
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_A_print
(JNIEnv *, jobject);
#ifdef __cplusplus
}
#endif
#endif
#include "A.h"
#include "stdio.h"
JNIEXPORT void JNICALL Java_A_print
(JNIEnv *x, jobject y)
{
printf("Welcome To Land Of Java-C\n");
}
when i compile last file i get the above mention errors!!
That is just a C/C++ compiler setting; the missing header file is in your JDK in the include subdirectory; add that directory to your include list with the -I flag.Quote:
Originally Posted by roadies07
kind regards,
Jos
actually jni.h is present inside the java directory
locate jni.h
/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/include/jni.h
can u give the full command to compile it
Yes, that's what I wrote in my previous reply.Quote:
Originally Posted by roadies07
So you don't know how your C/C++ compiler works? As I already wrote in my previous reply: use the -I flag when you want to compile something:Quote:
Originally Posted by roadies07
kind regards,Code:cc -I<directory where jni.h file is stored> <your .c file>
Jos
From where I can find those settings? Can you elaborate please.Quote:
Originally Posted by JosAH
@Eranga: Its a C++ compiler thing. The only way to do anything about them is with command line options, and the odd environment variable.
@OP: JosAH is right, you need to use -I to add a path to the header. However, feel I should add that you probably need to add a system-dependent path as well, to a header included by jni.h. For me, its something like -I%JAVA_HOME%/include/win32/jni_md.h. For you, it won't be the same, as I'd guess you're running a unix box of some sort judging by the path you mentioned
I don't want to test it then.Quote:
Originally Posted by Singing Boyo
I'd suggest you don't then :) setting up JNI is a pain... the worst part for me being the necessity of editing jni.h so the JVM would find my native functions...Quote:
Originally Posted by Eranga
It's in your C/C++ compiler's manual; usually (by convention) it is the -I<dir to include> command line flag as I already wrote in my previous reply.Quote:
Originally Posted by Eranga
kind regards,
Jos
By experience I know that editing headers are real pain. ;)Quote:
Originally Posted by Singing Boyo
I've never see this in C/C++ compiler. Interesting to check it out.Quote:
Originally Posted by JosAH
No, you don't have to do that: the md.h (Machine Description) file is included by the jni.h file, so it is done for you. All you have to do is set your include path(s) right and include the generated .h file (it contains the prototypes of your native functions) and included jni.h for you. It's just an ordinary C environment setup.Quote:
Originally Posted by Singing Boyo
kind regards,
Jos