sqlite and C languaje

david
HI now that i had installed sqlite on my mini i had put a simple data base
on it, now i want to read that database by a simple programm made by C
languaje, and using diferents examples i have found but when i compiled
them its shows me this mistake:

hello.c:(.text+0x54): undefined reference to `sqlite3_open'
hello.c:(.text+0x13c): undefined reference to `sqlite3_exec'
hello.c:(.text+0x1a4): undefined reference to `sqlite3_exec'
hello.c:(.text+0x20c): undefined reference to `sqlite3_exec'
hello.c:(.text+0x278): undefined reference to `sqlite3_prepare_v2'
hello.c:(.text+0x2ac): undefined reference to `sqlite3_column_count'
hello.c:(.text+0x2c0): undefined reference to `sqlite3_step'
hello.c:(.text+0x2f8): undefined reference to `sqlite3_column_text'
hello.c:(.text+0x310): undefined reference to `sqlite3_column_name'
hello.c:(.text+0x36c): undefined reference to `sqlite3_close'


i dont know if i have to install something on my compiller can anybody help
me!!

the code im using its this:

#include <stdio.h>
#include <sqlite3.h>

static int callback(void *NotUsed, int argc, char **argv, char
**azColName){
  int i;
  for(i=0; i<argc; i++){
    printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
  }
  printf("\n");
  return 0;
}

int main(int argc, char **argv){
  sqlite3 *db;
  char *zErrMsg = 0;
  int rc;

  if( argc!=3 ){
    fprintf(stderr, "Usage: %s DATABASE SQL-STATEMENT\n", argv[0]);
    exit(1);
  }
  rc = sqlite3_open(argv[1], &db);
  if( rc ){
    fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
    sqlite3_close(db);
    exit(1);
  }
  rc = sqlite3_exec(db, argv[2], callback, 0, &zErrMsg);
  if( rc!=SQLITE_OK ){
    fprintf(stderr, "SQL error: %s\n", zErrMsg);
    sqlite3_free(zErrMsg);
  }
  sqlite3_close(db);
  return 0;
}


thanks

Jay
It seems that it can't find the sqlite3.h (this c header file must also be
in the same directory as your source code you are compiling).

david
Jay thanks for your fast answer

my sqlite3.h is locate on:

/usr/local/arm/4.3.2/lib/gcc/arm-none-linux-gnueabi/4.3.2/include

also i pasted on route where im compiling but it shows me the same mistake

eduardo
You should take a look at the -l flags on compilation.
Probably you should add the "-lsqlite3" on compilation command line, then
your program will be linked with libsqlite3.so (which contains the
sqlite3_xxx functions).

eduardo
try:
arm-linux-g++ -o sqliteTestProgram main.cpp
-L/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/lib -lsqlite3

or something like that.

You should look for "undefined reference" at google befor post it here.

david
thats what i have found on others forums but im very new on this topic,
when i compiled my program i did it bye this instrution:


arm-linux-gcc -lsqlite3.so -o hello hello.c

thats what you tellme right?

but im having this mistake:

/usr/local/arm/4.3.2/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.2/../../../../arm
-none-linux-gnueabi/bin/ld:
cannot find -lsqlite3
collect2: ld returned 1 exit status

now im copy that files on that folder but i have the same problem:

/usr/local/arm/4.3.2/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.2/../../../../arm
-none-linux-gnueabi/bin/ld:
cannot find -lsqlite3
collect2: ld returned 1 exit status

im not very sure about the right place to paste the libsqlite3.so
or do i have to make something else?



thanks

david
i forgot i modify the hello example (the one who brings the cd) my make
file its this:

CROSS=arm-linux-

all: hello 

hello:
  $(CROSS)gcc -o hello hello.c

clean:
  @rm -vf hello *.o *~

maybe i have to change something.

david
hi again i could compile my program the comand line was this:

arm-linux-gcc -o filename filename.c -I include libsqlite3.s0

this file "libsqlite3.s0" has to be on the folder where im doing my
compilation

i hope this can be useful for someone else

thanks!!

eduardo
to avoid "cannot find -lsqlite3"

You must put libsqlite3.so under
/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/lib.

Using the -l option with "sqlite3" the compiler will look for libsqlite3.so
(take a look at gcc manual).

david
Eduardo,

i tried what you tell:

You must put libsqlite3.so under
/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/lib.

and tried to compiled with this instrution:

arm-linux-gcc -lsqlite3.so -o hello hello.c

it throws me the same mistake

but when i compiled with this

arm-linux-gcc -o hello hello.c -I include libsqlite3.so


it compiles well, and creates me the file althought i dont have check it
yet.

eduardo
David,
Try: arm-linux-gcc -o hello hello.c -lsqlite3

fatbrain
There is no need for a sqlite.so file you can embed the complete sqlite
source code in your project. There is a single sqlite file source which can
include in your projects make file. 
You can dowwnload it directly from 
http://www.sqlite.org/sqlite-amalgamation-3_6_23_1.zip
or 
http://www.sqlite.org/download.html
check the amalgamation source package

to know more about amalgamation source package read
http://www.sqlite.org/amalgamation.html

regards
--fatbrain

david
Eduardo i forgot i checked the files and they work well.

now im working on php i need a hand!!