(No such file) error - c++ linking library issue from running executable file

Question

I have been trying to develop a simple c++ program to connect to mysql using the mysql connector/c++ library. I have been running into issues after issues. This is the next hurdle. I am new to CMake & Make, but have been trying to use it to build this project. I've downloaded all the recent packages, dependencies, softwares, etc.: MySQL 9.3, MySQL Connector/C++ 9.3, OpenSSL@3. I am working on my Mac terminal.

My program: /Users/{user}/Documents/Projects/SQL/src/main.cpp

#include <iostream>
#include "/usr/local/mysql-connector-c++-9.3.0/include/mysql/jdbc.h"

using std::cout;

int main(){
  sql::mysql::MySQL_Driver *driver;
  driver = sql::mysql::get_mysql_driver_instance();

  cout<<"Hello"<<"\n";
  return 0;
}

CMake file (CMakeLists.txt): /Users/{user}/Documents/Projects/SQL/

cmake_minimum_required(VERSION 4.0.1)

project(mysql_tut)
#set some path variables 
set(MYSQL_PATH "/usr/local/mysql-connector-c++-9.3.0/")
set(MYSQL_LIB_PATH "${MYSQL_PATH}lib64/")

#create a variable to hold all necessary library files
file(GLOB LIB_FILES
   "${MYSQL_LIB_PATH}libmysqlcppconn.10.9.3.0.dylib"
   "${MYSQL_LIB_PATH}libcrypto.3.dylib"
   "${MYSQL_LIB_PATH}libssl.3.dylib"
)

#set std=c++11 standard needs to run during compilation
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED True)

#set path for builder to look for cmake configure file "mysql-conncpp-config.cmake"
set(CMAKE_PREFIX_PATH "${MYSQL_PATH}")

#find library's cmake config file "mysql-conncpp-config.cmake"
find_package(mysql-conncpp REQUIRED)

#set target and source file
add_executable(main src/main.cpp)

#set target library files
target_link_libraries(main PRIVATE "${LIB_FILES}")

#set target include directory
target_include_directories(main PRIVATE "${MYSQL_PATH}include/mysql")

The MySQL connector library was installed via .dmg in the directory /usr/local/, containing the respective subdirectories for the include files, library files, cmake configuration files, etc.

I created a build directory (same level as the src) /Users/{user}/Documents/Projects/SQL/build/, and changed into it. There, I ran cmake .. command for the Cmake file to generate the make file in the build directory. Following, I ran the make command and the project was built successfully. However, when I try to execute the binary file ./main I receive this error:

dylb[44606] Library not loaded: libcrypto.3.dylib
  Reference from: <57D4XXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX> /Users/{user}/Documents/Projects/SQL/build/main
  Reason: tried: 'libcryto.3.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OSlibcrypto.3.dylib'(no such file), 
'libcrypto.3.dylib' (no such file), '/Users/{user}/Documents/Projects/SQL/build/libcrypto.3.dylib' 
(no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/{user}/Documents/Projects/SQL/build/libcrypto.3.dylib' 
(no such file), /Users/{user}/Documents/Projects/SQL/build/libcrypto.3.dylib' (no such file)
zsh: abort ./main

In certain cases, I get an error that says no such files for libssl.3.dylib. I am not sure what is going on, because I added in the cmake file, the library files to the target_link_libraries command. I have checked my OpenSSL and I have the latest installed via homebrew at /opt/homebrew/Cellar/. What can be causing this issue?

Ashiful · Accepted Answer · 2025-04-20 07:40:18Z

3

After add executable link the library using target_link_libraries(main mysql::concpp) . You don't need to find the library files or define the include directory for this. fund_package ensures that they are populated for your project.

answered Apr 20 at 7:40

Ashiful

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2 Comments

Charles Florestal Apr 21 at 1:05

I edited the cmake file with your suggestion and went to build the project, then I received a linking error. Which is caused by the functioned I called in my program get_mysql_driver_instance(). I don't get that linking, when I add those files in the target link libraries command.

Charles Florestal Apr 21 at 1:38

dev.mysql.com/doc/dev/connector-cpp/latest/usage.html : This is an official document providing how to build a project with the library from the mysql website. It is congruent with your suggestion, but it is not working.

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