Holy hell, finally got this working with an R9 390 + Ubuntu.

CMakeLists.txt

@@ -14,6 +14,8 @@ if (WIN32)
     set(SFML_INCLUDE_DIR ${SFML_ROOT}/include)
 endif()
 
+set(OPENGL_LIBRARIES "/opt/amdgpu-pro/lib/x86_64-linux-gnu")
+
 set(SFML_COMPONENTS graphics window system network audio)
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
 find_package(SFML 2.1 COMPONENTS ${SFML_COMPONENTS} REQUIRED)
@@ -36,8 +38,8 @@ endif()
 
 # beignet only supports EGL and not GLX for the cl_khr_gl_sharing extension
 if (UNIX)
-    find_package(EGL REQUIRED)
-    message(STATUS "EGL found: ${EGL_FOUND}")
+#    find_package(EGL REQUIRED)
+#message(STATUS "EGL found: ${EGL_FOUND}")
 endif (UNIX)
 
 # Include the directories for the main program, GL, CL and SFML's headers
@@ -45,7 +47,7 @@ include_directories(${SFML_INCLUDE_DIR})
 include_directories(${OpenCL_INCLUDE_DIRS})
 include_directories(${OpenGL_INCLUDE_DIRS})
 if (UNIX)
-    include_directories(${EGL_INCLUDE_DIRS})
+    #    include_directories(${EGL_INCLUDE_DIRS})
 endif()
 include_directories(include)
 
@@ -127,7 +129,7 @@ target_link_libraries (${PNAME} ${OpenCL_LIBRARY})
 target_link_libraries (${PNAME} ${OPENGL_LIBRARIES})
 
 if (UNIX)
-    target_link_libraries (${PNAME} ${EGL_LIBRARIES})
+    #    target_link_libraries (${PNAME} ${EGL_LIBRARIES})
 endif()
 
 if (WIN32)

include/Application.h

@@ -44,9 +44,9 @@ public:
 	static const int WINDOW_X = 1600;
 	static const int WINDOW_Y = 900;
 
-	static const int MAP_X = 32;
-	static const int MAP_Y = 32;
-	static const int MAP_Z = 32;
+	static const int MAP_X;
+	static const int MAP_Y;
+	static const int MAP_Z;
 
 	Application();
 	~Application();

include/CLCaster.h

@@ -3,10 +3,11 @@
 #include <vector>
 #include <iostream>
 #include <map>
+#include <GL/glew.h>
 #include <string.h>
 #include "LightController.h"
 #include "Camera.h"
-#include <GL/glew.h>
+//#include <GL/glew.h>
 #include <Application.h>
 #include <unordered_map>
 #include "Logger.h"
@@ -16,7 +17,10 @@
 #ifdef linux
 #include <CL/cl.h>
 #include <CL/opencl.h>
-#include <EGL/egl.h>
+#include <GL/gl.h>
+#include <GL/glx.h>
+#include <GL/glu.h>
+//#include <EGL/egl.h>
 //#include <GL/glx.h>
 
 #elif defined _WIN32

include/map/ArrayMap.h

@@ -20,7 +20,7 @@ public:
 	// =========== DEBUG =========== //
 	char* getDataPtr();
 	
-	std::vector<std::tuple<sf::Vector3i, char>>  ArrayMap::CastRayCharArray(
+	std::vector<std::tuple<sf::Vector3i, char>>  CastRayCharArray(
 		char* map,
 		sf::Vector3i* map_dim,
 		sf::Vector2f* cam_dir,

include/map/Octree.h

@@ -92,7 +92,7 @@ public:
 	static const uint64_t contour_pointer_mask = 0xFFFFFF00000000;
 	static const uint64_t contour_mask = 0xFF00000000000000;
 
-	std::vector<std::tuple<sf::Vector3i, char>> Octree::CastRayOctree(
+	std::vector<std::tuple<sf::Vector3i, char>> CastRayOctree(
 		sf::Vector2f cam_dir,
 		sf::Vector3f cam_pos
 	);

src/Application.cpp

@@ -1,5 +1,8 @@
 #include "Application.h"
 
+const int Application::MAP_X = 32;
+const int Application::MAP_Y = 32;
+const int Application::MAP_Z = 32;
 
 Application::Application() {
 

src/CLCaster.cpp

@@ -602,10 +602,10 @@ bool CLCaster::create_shared_context()
 #ifdef linux
 
 	cl_context_properties context_properties[] = {
-		//CL_GL_CONTEXT_KHR, (cl_context_properties)glXGetCurrentContext(),
-		//CL_GLX_DISPLAY_KHR, (cl_context_properties)glXGetCurrentDisplay(),
-        CL_GL_CONTEXT_KHR, (cl_context_properties)eglGetCurrentContext(),
-        CL_EGL_DISPLAY_KHR, (cl_context_properties)eglGetCurrentDisplay(),
+		CL_GL_CONTEXT_KHR, (cl_context_properties)glXGetCurrentContext(),
+		CL_GLX_DISPLAY_KHR, (cl_context_properties)glXGetCurrentDisplay(),
+        //CL_GL_CONTEXT_KHR, (cl_context_properties)eglGetCurrentContext(),
+        //CL_EGL_DISPLAY_KHR, (cl_context_properties)eglGetCurrentDisplay(),
 		CL_CONTEXT_PLATFORM, (cl_context_properties)platform_id,
 		0
 	};