While setting up a new project (using CMake, compiler is gcc version 5.2.1, ubuntu (15.10)), I wanted to use a shared_ptr.
This simple main.cpp works fine:
#include <iostream>
#include <memory>
using namespace std;
int main()
{
cout<<"Hi there!"<<endl;
return 0;
}
But just defining a shared_ptr will cause the program to crash with segfault before even writing "Hi there!".
#include <iostream>
#include <memory>
using namespace std;
int main()
{
cout<<"Hi there!"<<endl;
shared_ptr<double> test; // <- new line
return 0;
}
I added
set(CMAKE_CXX_FLAGS "-std=c++11")
to the CMakeLists.txt. Is there something I'm missing here. I could not find any answers that explain the segfault just because of the definition of a shared_ptr.
The GDB output is not helpful at all:
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
EDIT: Compiling by hand using
g++ -std=c++11 -o testx main.cpp
produces a runable executable for both cases so it has to be a CMake issue i guess. So here is the CMake file for the project:
project(yorld3)
cmake_minimum_required(VERSION 2.8)
set(CMAKE_CXX_FLAGS "-std=c++11")
find_package(OpenGL REQUIRED)
include_directories(${OpenGL_INCLUDE_DIRS})
set(LIBS ${LIBS} ${OpenGL_LIBRARIES})
find_package(GLUT REQUIRED)
include_directories(${GLUT_INCLUDE_DIRS})
set(LIBS ${LIBS} ${GLUT_LIBRARIES})
find_package(Bullet REQUIRED)
include_directories(${Bullet_INCLUDE_DIRS})
set(LIBS ${LIBS} ${Bullet_LIBRARIES})
link_directories(${SRC_BINARY_DIR}/src)
add_subdirectory(src)
INCLUDE_DIRECTORIES(src)
INCLUDE_DIRECTORIES(src/core)
add_executable(test main.cpp )
target_link_libraries(test mycorelib GLU GL glut)
EDIT2: After a lot of testing I manually compiled the program again not linking my lib:
g++ -std=c++11 -g -Wall -I src/core/app -o testx main.cpp src/core/app/yorld_window.cpp -lGL -lGLU -lglut
That way I can reproduce the segfault without using CMake.
