Linker error with CMake - sqlite

Question

I'm using JetBrains CLion for pure C (C ANSI) development, I know it's target is C++, but my company works only with C and
CLion uses only CMake as build system.
My system is a Debian Jessie system and sqlite3 and libsqlite3-dev are installed.
I'm trying to build a simple sqlite3 project like this:
#include <sqlite3.h>
#include <stdio.h>
int main() {
sqlite3 *sqlConnection;
int ret;
ret = sqlite3_open("database/path.db, &sqlConnection);
if (ret) {
printf("Ups ... can't open %d", ret);
}
do_some_queries(sqlConnection);
return 0;
}
The automatic generated CMakeLists.txt is the follwing.
cmake_minimum_required(VERSION 3.3)
project(Project)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp )
add_executable(Project ${SOURCE_FILES})
When build, either through Clion, either through command line, I get linker errors:
...
undefined reference to `sqlite3_prepare_v2'
undefined reference to `sqlite3_column_int'
undefined reference to `sqlite3_open'
...
I know I must point out to CMake where sqlite3 is, but I can't find a way of doing this.
"find_package" and "find_library" may do it, but I can't find how.
I've also found this Cmake file, but could not used successfully.
So, how do I integrate sqlite3 with Cmake ?

Answer 1

You need to add the path to sqlite header file to your include path. Then link the sqlite library using target_link_libraries:
https://cmake.org/cmake/help/v3.3/command/target_link_libraries.html

Answer 2

I've founded a workaround, but it's not the correct way of doing.
Since on Debian the "gcc main.c -lsqlite3" works (with libsqlite3-dev installed), passing the -lsqlite3 flag to the linker do the trick.
so I've changed
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
to
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -lsqlite3")
And it worked.