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crapodino 14Jan2008 05:59

undefined reference to....
 
Hi! i am trying to compile/link a simple application that uses a library called OpenDBX. I have already compiled and installed that library. Now, i am trying to do a simple client of it.

The client (Prueba.c) is just like this:
Code:

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <odbx.h>

int main(void) {
        puts("Hello World!!");
       
                int err;
                odbx_t* handle;
       
                if( ( err = odbx_init( &handle, "mysql", "127.0.0.1", "" ) ) < 0 )
                {
                    fprintf( stderr, "odbx_init(): %s\n", odbx_error( handle, err ) );
                    return err;
                }
               
                return EXIT_SUCCESS;
}



When i try to compile that program (Prueba.c), i has this error:

cc -c -o Prueba.o Prueba.c
gcc -O2 -g -Wall -fmessage-length=0 -L/usr/local/lib -L/usr/local/lib/opendbx -L/usr/local/lib/pkgconfig -o Pruebas Prueba.o
Prueba.o: In function `main':
Prueba.c:(.text+0x3c): undefined reference to `odbx_init'
Prueba.c:(.text+0x57): undefined reference to `odbx_error'
collect2: ld returned 1 exit status
make: *** [Pruebas] Error 1


Those functions (odbx_error and odbx_init are both defined in odbx.h (the header of openDBX y need to include).

I have checked that openDBX libraries are okey. There are in /usr/local/lib , /usr/local/lib/opendbx and /usr/local/lib/pkgconfig.

My makefile is like this:

Code:

COMPILER = gcc

CCFLAGS =        -O2 -g -Wall -fmessage-length=0

OBJS =                Prueba.o

LIBS =

TARGET =        Pruebas

LDFLAGS = -L/usr/local/lib -L/usr/local/lib/opendbx -L/usr/local/lib/pkgconfig

$(TARGET):        $(OBJS)
        ${COMPILER} ${CCFLAGS} $(LDFLAGS) -o $(TARGET) $(OBJS) $(LIBS)

all:        $(TARGET)

clean:
        rm -f $(OBJS) $(TARGET)

So...can someone please tell what does this error mean ? i think that it doesn't found the library asosiated with de odbx.h, but i am not sure.

Very thanks

Mariano


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