diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 0b1d0e1a..9dc5c1f3 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -6,7 +6,7 @@ if (MSVC)
     set(CMAKE_CXX_FLAGS "-O2 /std:c++17")
     set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
 else()
-    set(CMAKE_CXX_FLAGS "-O3 -std=c++17 -fpermissive")
+    set(CMAKE_CXX_FLAGS "-g -O3 -std=c++17 -fpermissive")
 endif (MSVC)
 add_definitions(-DSDRPP_IS_CORE)
 
@@ -75,6 +75,7 @@ if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     target_link_libraries(sdrpp_core PUBLIC X11)
     target_link_libraries(sdrpp_core PUBLIC Xxf86vm)
     target_link_libraries(sdrpp_core PUBLIC dl)
+    target_link_libraries(sdrpp_core PUBLIC stdc++fs)
 endif ()
 
 
@@ -113,4 +114,4 @@ target_link_libraries(sdrpp_core PUBLIC volk)
 
 set(CORE_FILES ${RUNTIME_OUTPUT_DIRECTORY} PARENT_SCOPE)
 
-# cmake .. "-DCMAKE_TOOLCHAIN_FILE=C:/Users/Alex/vcpkg/scripts/buildsystems/vcpkg.cmake" -G "Visual Studio 15 2017 Win64"
\ No newline at end of file
+# cmake .. "-DCMAKE_TOOLCHAIN_FILE=C:/Users/Alex/vcpkg/scripts/buildsystems/vcpkg.cmake" -G "Visual Studio 15 2017 Win64"
diff --git a/core/src/core.cpp b/core/src/core.cpp
index 0e472955..db5461b6 100644
--- a/core/src/core.cpp
+++ b/core/src/core.cpp
@@ -139,7 +139,9 @@ int sdrpp_main() {
         glfwMaximizeWindow(window);
     }
 
+#if (GLFW_VERSION_MINOR == 3) && (GLFW_VERSION_MINOR >= 2)
     glfwSetWindowMaximizeCallback(window, maximized_callback);
+#endif
 
     // Load app icon
     GLFWimage icons[10];
@@ -300,4 +302,4 @@ int sdrpp_main() {
     glfwTerminate();
 
     return 0;
-}
\ No newline at end of file
+}