#include <bson/bson.h>
int main()
{
 return 0;
}

In file included from /usr/local/include/libbson-1.0/bson/bson-types.h:30,
                 from /usr/local/include/libbson-1.0/bson/bson-context.h:25,
                 from /usr/local/include/libbson-1.0/bson/bson.h:31,
                 from Documents/code/test_cmake/main.cpp:1:
/usr/local/include/libbson-1.0/bson/bson-endian.h: In function ‘uint16_t __bson_uint16_swap_slow(uint16_t)’:
/usr/local/include/libbson-1.0/bson/bson-endian.h:136:31: warning: conversion from ‘int’ to ‘uint16_t’ {aka ‘short unsigned int’} may change value [-Wconversion]
  136 |    return ((v & 0x00FF) << 8) | ((v & 0xFF00) >> 8);
      |           ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/include/libbson-1.0/bson/bson.h:40,
                 from Documents/code/test_cmake/main.cpp:1:
/usr/local/include/libbson-1.0/bson/bson-oid.h: In function ‘void bson_oid_init_from_string_unsafe(bson_oid_t*, const char*)’:
/usr/local/include/libbson-1.0/bson/bson-oid.h:217:68: warning: conversion from ‘int’ to ‘uint8_t’ {aka ‘unsigned char’} may change value [-Wconversion]
  217 |       oid->bytes[i] = ((bson_oid_parse_hex_char (str[2 * i]) << 4) |
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  218 |                        (bson_oid_parse_hex_char (str[2 * i + 1])));
      |                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~