diff --git a/qt/CMakeLists.txt b/qt/CMakeLists.txt
index 4a9d4e86..f0d49187 100644
--- a/qt/CMakeLists.txt
+++ b/qt/CMakeLists.txt
@@ -76,7 +76,7 @@ set(SNES9X_CORE_SOURCES
     ../fscompat.cpp)
 add_library(snes9x-core ${SNES9X_CORE_SOURCES})
 target_include_directories(snes9x-core PRIVATE ../)
-target_compile_definitions(snes9x-core PRIVATE ${DEFINES} ZLIB HAVE_STDINT_H ALLOW_CPU_OVERCLOCK)
+target_compile_definitions(snes9x-core PRIVATE ${DEFINES} ZLIB HAVE_STDINT_H HAVE_LIBPNG ALLOW_CPU_OVERCLOCK)
 
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
     set(PREBUILT_QT "${PROJECT_SOURCE_DIR}/../external/qt6-mingw-clang-bin")
@@ -100,6 +100,7 @@ list(APPEND INCLUDES ${Qt6Gui_PRIVATE_INCLUDE_DIRS})
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(SDL REQUIRED sdl2)
 pkg_check_modules(ZLIB REQUIRED zlib)
+pkg_check_modules(PNG REQUIRED libpng)
 list(APPEND INCLUDES ${SDL_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIRS})
 list(APPEND FLAGS ${SDL_COMPILE_FLAGS} ${ZLIB_COMPILE_FLAGS})
 
@@ -112,7 +113,7 @@ if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
         list(APPEND LIBS libstdc++.a)
     endif()
 
-    list(APPEND LIBS libSDL2.a libz.a opengl32 gdi32 winmm imm32 ole32 oleaut32 version uuid advapi32 setupapi shell32 dinput8)
+    list(APPEND LIBS libSDL2.a libz.a libpng.a opengl32 gdi32 winmm imm32 ole32 oleaut32 version uuid advapi32 setupapi shell32 dinput8)
     list(APPEND DEFINES SDL_MAIN_HANDLED)
     list(APPEND PLATFORM_SOURCES
         ../common/video/opengl/wgl_context.cpp
@@ -127,7 +128,7 @@ else()
     endif()
 
     list(APPEND INCLUDES ${WAYLAND_INCLUDE_DIRS} ${X11_INCLUDE_DIRS})
-    list(APPEND LIBS ${WAYLAND_LIBRARIES} ${X11_LIBRARIES} ${ZLIB_LIBRARIES} ${SDL_LIBRARIES})
+    list(APPEND LIBS ${WAYLAND_LIBRARIES} ${PNG_LIBRARIES} ${X11_LIBRARIES} ${ZLIB_LIBRARIES} ${SDL_LIBRARIES})
     list(APPEND FLAGS ${WAYLAND_CFLAGS})
 
     pkg_check_modules(PULSEAUDIO libpulse)
diff --git a/screenshot.cpp b/screenshot.cpp
index a76b8a0c..6e8bfaa9 100644
--- a/screenshot.cpp
+++ b/screenshot.cpp
@@ -14,7 +14,6 @@
 
 #include "snes9x.h"
 #include "memmap.h"
-#include "display.h"
 #include "screenshot.h"
 
 
@@ -29,15 +28,15 @@ bool8 S9xDoScreenshot (int width, int height)
 	png_color_8	sig_bit;
 	int			imgwidth, imgheight;
 
-	std::tm current_time;
+	std::tm *current_time;
 	std::time_t current_timet = time(nullptr);
-	localtime_r(&current_timet, &current_time);
+	current_time = localtime(&current_timet);
 
 	auto screenshot_dir = S9xGetDirectory(SCREENSHOT_DIR);
 	std::stringstream ss;
 	ss << screenshot_dir
 	   << S9xBasenameNoExt(Memory.ROMFilename) << "-"
-	   << std::put_time(&current_time, "%Y-%m-%d-%H:%M:%S");
+	   << std::put_time(current_time, "%Y-%m-%d-%H-%M-%S");
 	std::string fname = ss.str() + ".png";
 
 	for (int i = 0; i < 1000; i++)