diff --git a/gtk/src/gtk_display.cpp b/gtk/src/gtk_display.cpp
index 9a4fd5a5..d59090c0 100644
--- a/gtk/src/gtk_display.cpp
+++ b/gtk/src/gtk_display.cpp
@@ -965,6 +965,7 @@ void S9xDeinitDisplay()
     if (driver)
         driver->deinit();
     delete driver;
+    driver = nullptr;
 
     if (pool)
     {
diff --git a/gtk/src/gtk_s9xwindow.cpp b/gtk/src/gtk_s9xwindow.cpp
index 5222fb62..b7f24684 100644
--- a/gtk/src/gtk_s9xwindow.cpp
+++ b/gtk/src/gtk_s9xwindow.cpp
@@ -1293,8 +1293,17 @@ void Snes9xWindow::leave_fullscreen_mode()
     }
 #endif
 
+#ifdef GDK_WINDOWING_WAYLAND
+    if (GDK_IS_WAYLAND_WINDOW(gdk_window))
+    {
+        S9xDeinitDisplay();
+    }
+#endif
+
     window->unfullscreen();
 
+    window->show();
+
 #ifdef GDK_WINDOWING_X11
     if (GDK_IS_X11_WINDOW(gdk_window))
     {
@@ -1310,6 +1319,15 @@ void Snes9xWindow::leave_fullscreen_mode()
     config->rom_loaded = rom_loaded;
     config->fullscreen = 0;
     configure_widgets();
+    window->show();
+
+#ifdef GDK_WINDOWING_WAYLAND
+    if (GDK_IS_WAYLAND_WINDOW(gdk_window))
+    {
+        S9xReinitDisplay();
+    }
+#endif
+
 }
 
 void Snes9xWindow::resize_viewport(int width, int height)
diff --git a/qt/CMakeLists.txt b/qt/CMakeLists.txt
index 3dde4d83..54291c08 100644
--- a/qt/CMakeLists.txt
+++ b/qt/CMakeLists.txt
@@ -74,7 +74,7 @@ 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 ZLIB HAVE_STDINT_H ALLOW_CPU_OVERCLOCK)
+target_compile_definitions(snes9x-core PRIVATE ${DEFINES} ZLIB HAVE_STDINT_H ALLOW_CPU_OVERCLOCK)
 
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
     set(PREBUILT_QT "${PROJECT_SOURCE_DIR}/../external/qt6-mingw-clang-bin")
diff --git a/unix/configure b/unix/configure
index 9dd94b72..a187226f 100755
--- a/unix/configure
+++ b/unix/configure
@@ -5813,14 +5813,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        SYSTEM_ZIP_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "minizip" 2>&1`
+                SYSTEM_ZIP_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "minizip" 2>&1`
         else
-	        SYSTEM_ZIP_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "minizip" 2>&1`
+                SYSTEM_ZIP_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "minizip" 2>&1`
         fi
-	# Put the nasty error message in config.log where it belongs
-	echo "$SYSTEM_ZIP_PKG_ERRORS" >&5
+        # Put the nasty error message in config.log where it belongs
+        echo "$SYSTEM_ZIP_PKG_ERRORS" >&5
 
-	if test "x${with_system_zip}" != "xcheck"; then
+        if test "x${with_system_zip}" != "xcheck"; then
 				as_fn_error $? "--with-system-zip requested but no proper minizip lib found." "$LINENO" 5
 			else
 				{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: minizip not found. Build without SYSTEM_ZIP support." >&5
@@ -5830,7 +5830,7 @@ printf "%s\n" "$as_me: WARNING: minizip not found. Build without SYSTEM_ZIP supp
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-	if test "x${with_system_zip}" != "xcheck"; then
+        if test "x${with_system_zip}" != "xcheck"; then
 				as_fn_error $? "--with-system-zip requested but no proper minizip lib found." "$LINENO" 5
 			else
 				{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: minizip not found. Build without SYSTEM_ZIP support." >&5
@@ -5838,11 +5838,11 @@ printf "%s\n" "$as_me: WARNING: minizip not found. Build without SYSTEM_ZIP supp
 			fi
 
 else
-	SYSTEM_ZIP_CFLAGS=$pkg_cv_SYSTEM_ZIP_CFLAGS
-	SYSTEM_ZIP_LIBS=$pkg_cv_SYSTEM_ZIP_LIBS
+        SYSTEM_ZIP_CFLAGS=$pkg_cv_SYSTEM_ZIP_CFLAGS
+        SYSTEM_ZIP_LIBS=$pkg_cv_SYSTEM_ZIP_LIBS
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
-	S9XZIP="S9XZIP=1"
+        S9XZIP="S9XZIP=1"
 			S9XDEFS="$S9XDEFS -DUNZIP_SUPPORT"
 			S9X_SYSTEM_ZIP="SYSTEM_ZIP=1"
 			S9XLIBS="$S9XLIBS $SYSTEM_ZIP_LIBS"
@@ -7264,18 +7264,60 @@ fi
 
 
 if test "x$enable_sound" = "xyes"; then
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether sound is supported on this platform" >&5
-printf %s "checking whether sound is supported on this platform... " >&6; }
-	if test "x$snes9x_cv_linux_os" = "xyes"; then
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
-	else
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
-		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Your OS is not Linux. Build without sound support." >&5
-printf "%s\n" "$as_me: WARNING: Your OS is not Linux. Build without sound support." >&2;}
+	ac_fn_cxx_check_header_compile "$LINENO" "sys/soundcard.h" "ac_cv_header_sys_soundcard_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_soundcard_h" = xyes
+then :
+
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _oss_ioctl in -lossaudio" >&5
+printf %s "checking for _oss_ioctl in -lossaudio... " >&6; }
+if test ${ac_cv_lib_ossaudio__oss_ioctl+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lossaudio  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+namespace conftest {
+  extern "C" int _oss_ioctl ();
+}
+int
+main (void)
+{
+return conftest::_oss_ioctl ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"
+then :
+  ac_cv_lib_ossaudio__oss_ioctl=yes
+else $as_nop
+  ac_cv_lib_ossaudio__oss_ioctl=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ossaudio__oss_ioctl" >&5
+printf "%s\n" "$ac_cv_lib_ossaudio__oss_ioctl" >&6; }
+if test "x$ac_cv_lib_ossaudio__oss_ioctl" = xyes
+then :
+
+			S9XLIBS="$S9XLIBS -lossaudio"
+
+fi
+
+
+else $as_nop
+
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Your OS does not have OSS. Build without sound support." >&5
+printf "%s\n" "$as_me: WARNING: Your OS does not have OSS. Build without sound support." >&2;}
 		enable_sound="no"
-	fi
+
+fi
+
 fi
 
 if test "x$enable_sound" = "xyes"; then
diff --git a/unix/configure.ac b/unix/configure.ac
index 50a14c1a..e6d804eb 100644
--- a/unix/configure.ac
+++ b/unix/configure.ac
@@ -479,14 +479,16 @@ AC_ARG_ENABLE([sound],
 	[], [enable_sound="yes"])
 
 if test "x$enable_sound" = "xyes"; then
-	AC_MSG_CHECKING([whether sound is supported on this platform])
-	if test "x$snes9x_cv_linux_os" = "xyes"; then
-		AC_MSG_RESULT([yes])
-	else
-		AC_MSG_RESULT([no])
-		AC_MSG_WARN([Your OS is not Linux. Build without sound support.])
+	AC_CHECK_HEADER([sys/soundcard.h],
+	[
+		AC_CHECK_LIB([ossaudio], [_oss_ioctl], [
+			S9XLIBS="$S9XLIBS -lossaudio"
+		], [], [])
+	],
+	[
+		AC_MSG_WARN([Your OS does not have OSS. Build without sound support.])
 		enable_sound="no"
-	fi
+	])
 fi
 
 if test "x$enable_sound" = "xyes"; then
diff --git a/unix/unix.cpp b/unix/unix.cpp
index e16c6dad..14476801 100644
--- a/unix/unix.cpp
+++ b/unix/unix.cpp
@@ -164,7 +164,7 @@ static bool8 ReadJoysticks (void);
 void S9xLatchJSEvent();
 #endif
 
-static long log2 (long num)
+static long snes9x_log2 (long num)
 {
 	long	n = 0;
 
@@ -1456,7 +1456,7 @@ bool8 S9xOpenSoundDevice (void)
 		bool(unixSettings.ThreadSound)
 	);
 
-	J = log2(unixSettings.SoundFragmentSize) | (4 << 16);
+	J = snes9x_log2(unixSettings.SoundFragmentSize) | (4 << 16);
 	if (ioctl(so.sound_fd, SNDCTL_DSP_SETFRAGMENT, &J) == -1)
 		return (FALSE);
 
diff --git a/vulkan/vulkan_swapchain.cpp b/vulkan/vulkan_swapchain.cpp
index 358d642f..37563d40 100644
--- a/vulkan/vulkan_swapchain.cpp
+++ b/vulkan/vulkan_swapchain.cpp
@@ -124,7 +124,10 @@ bool Swapchain::create(unsigned int desired_num_swapchain_images, int new_width,
     else
         num_swapchain_images = desired_num_swapchain_images;
 
-    extents = surface_capabilities.currentExtent;
+    // If extents aren't reported (Wayland), we have to rely on Wayland to report
+    // the size, so keep current extent.
+    if (surface_capabilities.currentExtent.width != -1)
+        extents = surface_capabilities.currentExtent;
 
     uint32_t graphics_queue_index = 0;
     auto queue_properties = physical_device.getQueueFamilyProperties();
@@ -396,4 +399,4 @@ vk::RenderPass &Swapchain::get_render_pass()
     return render_pass.get();
 }
 
-} // namespace Vulkan
\ No newline at end of file
+} // namespace Vulkan