Stringify CMake preprocessor token

Question

I'm using CMake to compile this example program:

CMakeLists.txt:

cmake_minimum_required (VERSION 3.0.0)
set(PROJECT_NAME Main)
project(${PROJECT_NAME})

add_definitions(-DSTRING=“test”)

add_executable(${PROJECT_NAME} main.c)

main.c:

#include <stdio.h>

int main(void)
{
    puts(STRING);
}

---

Compiling gives me the following error:

error: expected expression
    puts(STRING);
         ^
<command line>:1:16: note: expanded from here
#define STRING "test"

How can I stringify this preprocessor token without modifying main.c?

Answer 1

You are using the characters “ and ” that are not valid in C:

error: expected expression
        puts(STRING);
         ^
<command line>:1:16: note: expanded from here
#define STRING “test”
           ^
1 error generated.

You must change “ and ” for " in your CMakeLists.txt and your program will compile.