Minimal test program to reproduce a GLFW/Cairo problem concerning GLX

glfw-error.c

#include <GLFW/glfw3.h>
#define GLFW_EXPOSE_NATIVE_X11
#define GLFW_EXPOSE_NATIVE_GLX
#include <GLFW/glfw3native.h>
#include <cairo/cairo.h>
#include <cairo/cairo-gl.h>

#include <stdlib.h>

int main(int argc, char * argv[]) {
	glfwInit();

	// changes nothing on 3.2
	// glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_NATIVE_CONTEXT_API);
	GLFWwindow * window = glfwCreateWindow(800, 600, "Test", NULL, NULL);
	glfwMakeContextCurrent(window);
	glfwSwapInterval(1);

	Display * x11_display = glfwGetX11Display();
	GLXContext glx_context = glfwGetGLXContext(window);
	Window x11_window = glfwGetX11Window(window);

	cairo_device_t * cairo_device = cairo_glx_device_create(x11_display, glx_context);
	cairo_surface_t * cairo_surface = cairo_gl_surface_create_for_window(cairo_device, x11_window, 800, 600);
	cairo_device_destroy(cairo_device);
	cairo_t * ctx = cairo_create(cairo_surface);

	while (!glfwWindowShouldClose(window)) {
		cairo_set_source_rgb(ctx, 1.0, 0.0, 0.0);
		cairo_paint(ctx);
		cairo_gl_surface_swapbuffers(cairo_surface);
		glfwSwapBuffers(window);
		glfwPollEvents();

		glfwSetWindowShouldClose(window, 1);
	}
}