Merge cdcd9c194a into dbadda2683

Fixes #2778

CMakeLists.txt

@@ -38,11 +38,7 @@ set(GLFW_LIBRARY_TYPE "${GLFW_LIBRARY_TYPE}" CACHE STRING
     "Library type override for GLFW (SHARED, STATIC, OBJECT, or empty to follow BUILD_SHARED_LIBS)")
 
 if (GLFW_LIBRARY_TYPE)
-    if (GLFW_LIBRARY_TYPE STREQUAL "SHARED")
-        set(GLFW_BUILD_SHARED_LIBRARY TRUE)
-    else()
-        set(GLFW_BUILD_SHARED_LIBRARY FALSE)
-    endif()
+    string(COMPARE EQUAL "${GLFW_LIBRARY_TYPE}" "SHARED" GLFW_BUILD_SHARED_LIBRARY)
 else()
     set(GLFW_BUILD_SHARED_LIBRARY ${BUILD_SHARED_LIBS})
 endif()

CONTRIBUTORS.md

@@ -162,6 +162,7 @@ video tutorials.
  - Marcel Metz
  - Liam Middlebrook
  - mightgoyardstill
+ - Mihail
  - Ave Milia
  - Icyllis Milica
  - Jonathan Miller

README.md

@@ -144,11 +144,16 @@ information on what to include when reporting a bug.
    a modal to a fallback decoration
  - [Wayland] Bugfix: The cursor position was not updated when clicking through
    from a modal to the content area
+ - [Wayland] Bugfix: free modules at end of terminate function to resolve
+   potential segmentation fault (#2744)
+ - [Wayland] Bugfix: Confining or disabling the cursor could segfault on
+   compositors without `pointer-constraints-unstable-v1`
  - [X11] Bugfix: Running without a WM could trigger an assert (#2593,#2601,#2631)
  - [X11] Bugfix: Occasional crash when an idle display awakes (#2766) 
  - [X11] Bugfix: Prevent BadWindow when creating small windows with a content scale
    less than 1 (#2754)
  - [X11] Bugfix: Clamp width and height to >= 1 to prevent BadValue error and app exit
+ - [Linux] Bugfix: The header for `ioctl` was only implicitly included (#2778)
  - [Null] Added Vulkan 'window' surface creation via `VK_EXT_headless_surface`
  - [Null] Added EGL context creation on Mesa via `EGL_MESA_platform_surfaceless`
  - [EGL] Allowed native access on Wayland with `GLFW_CONTEXT_CREATION_API` set to

include/GLFW/glfw3.h

@@ -1180,7 +1180,7 @@ extern "C" {
 #define GLFW_WAYLAND_PREFER_LIBDECOR    0x00038001
 #define GLFW_WAYLAND_DISABLE_LIBDECOR   0x00038002
 
-#define GLFW_ANY_POSITION           0x80000000
+#define GLFW_ANY_POSITION           0x7FFFFFFF
 
 /*! @defgroup shapes Standard cursor shapes
  *  @brief Standard system cursor shapes.

src/cocoa_platform.h

@@ -272,7 +272,7 @@ EGLenum _glfwGetEGLPlatformCocoa(EGLint** attribs);
 EGLNativeDisplayType _glfwGetEGLNativeDisplayCocoa(void);
 EGLNativeWindowType _glfwGetEGLNativeWindowCocoa(_GLFWwindow* window);
 
-void _glfwGetRequiredInstanceExtensionsCocoa(char** extensions);
+void _glfwGetRequiredInstanceExtensionsCocoa(const char** extensions);
 GLFWbool _glfwGetPhysicalDevicePresentationSupportCocoa(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
 VkResult _glfwCreateWindowSurfaceCocoa(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
 

src/cocoa_window.m

@@ -1922,7 +1922,7 @@ EGLNativeWindowType _glfwGetEGLNativeWindowCocoa(_GLFWwindow* window)
     return window->ns.layer;
 }
 
-void _glfwGetRequiredInstanceExtensionsCocoa(char** extensions)
+void _glfwGetRequiredInstanceExtensionsCocoa(const char** extensions)
 {
     if (_glfw.vk.KHR_surface && _glfw.vk.EXT_metal_surface)
     {

src/egl_context.c

@@ -555,7 +555,8 @@ void _glfwTerminateEGL(void)
         _glfw.egl.display = EGL_NO_DISPLAY;
     }
 
-    if (_glfw.egl.handle)
+    // Free modules only after all wayland termination functions are called
+    if (_glfw.egl.handle && _glfw.platform.platformID != GLFW_PLATFORM_WAYLAND)
     {
         _glfwPlatformFreeModule(_glfw.egl.handle);
         _glfw.egl.handle = NULL;

src/input.c

@@ -1289,7 +1289,7 @@ GLFWAPI int glfwUpdateGamepadMappings(const char* string)
             const size_t length = strcspn(c, "\r\n");
             if (length < sizeof(line))
             {
-                _GLFWmapping mapping = {{0}};
+                _GLFWmapping mapping = { .name = {0} };
 
                 memcpy(line, c, length);
                 line[length] = '\0';

src/internal.h

@@ -755,7 +755,7 @@ struct _GLFWplatform
     EGLNativeDisplayType (*getEGLNativeDisplay)(void);
     EGLNativeWindowType (*getEGLNativeWindow)(_GLFWwindow*);
     // vulkan
-    void (*getRequiredInstanceExtensions)(char**);
+    void (*getRequiredInstanceExtensions)(const char**);
     GLFWbool (*getPhysicalDevicePresentationSupport)(VkInstance,VkPhysicalDevice,uint32_t);
     VkResult (*createWindowSurface)(VkInstance,_GLFWwindow*,const VkAllocationCallbacks*,VkSurfaceKHR*);
 };
@@ -862,7 +862,7 @@ struct _GLFWlibrary
     struct {
         GLFWbool        available;
         void*           handle;
-        char*           extensions[2];
+        const char*     extensions[2];
         PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
         GLFWbool        KHR_surface;
         GLFWbool        KHR_win32_surface;

src/linux_joystick.c

@@ -32,6 +32,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/inotify.h>
+#include <sys/ioctl.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <dirent.h>

src/null_platform.h

@@ -274,7 +274,7 @@ EGLenum _glfwGetEGLPlatformNull(EGLint** attribs);
 EGLNativeDisplayType _glfwGetEGLNativeDisplayNull(void);
 EGLNativeWindowType _glfwGetEGLNativeWindowNull(_GLFWwindow* window);
 
-void _glfwGetRequiredInstanceExtensionsNull(char** extensions);
+void _glfwGetRequiredInstanceExtensionsNull(const char** extensions);
 GLFWbool _glfwGetPhysicalDevicePresentationSupportNull(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
 VkResult _glfwCreateWindowSurfaceNull(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
 

src/null_window.c

@@ -701,7 +701,7 @@ int _glfwGetKeyScancodeNull(int key)
     return _glfw.null.scancodes[key];
 }
 
-void _glfwGetRequiredInstanceExtensionsNull(char** extensions)
+void _glfwGetRequiredInstanceExtensionsNull(const char** extensions)
 {
     if (!_glfw.vk.KHR_surface || !_glfw.vk.EXT_headless_surface)
         return;

src/posix_module.c

@@ -44,10 +44,17 @@ void _glfwPlatformFreeModule(void* module)
     dlclose(module);
 }
 
+#if defined(__GNUC__)
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wpedantic"
+#endif
 GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name)
 {
-    return dlsym(module, name);
+    return (GLFWproc)dlsym(module, name);
 }
+#if defined(__GNUC__)
+ #pragma GCC diagnostic pop
+#endif
 
 #endif // GLFW_BUILD_POSIX_MODULE
 

src/vulkan.c

@@ -150,7 +150,7 @@ GLFWbool _glfwInitVulkan(int mode)
 
     _glfw.vk.available = GLFW_TRUE;
 
-    _glfw.platform.getRequiredInstanceExtensions(_glfw.vk.extensions);
+    _glfw.platform.getRequiredInstanceExtensions((const char **)_glfw.vk.extensions);
 
     return GLFW_TRUE;
 }

src/win32_init.c

@@ -528,7 +528,8 @@ void _glfwUpdateKeyNamesWin32(void)
 
         if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_ADD)
         {
-            const UINT vks[] = {
+            const UINT vks[] =
+            {
                 VK_NUMPAD0,  VK_NUMPAD1,  VK_NUMPAD2, VK_NUMPAD3,
                 VK_NUMPAD4,  VK_NUMPAD5,  VK_NUMPAD6, VK_NUMPAD7,
                 VK_NUMPAD8,  VK_NUMPAD9,  VK_DECIMAL, VK_DIVIDE,

src/win32_platform.h

@@ -540,7 +540,7 @@ EGLenum _glfwGetEGLPlatformWin32(EGLint** attribs);
 EGLNativeDisplayType _glfwGetEGLNativeDisplayWin32(void);
 EGLNativeWindowType _glfwGetEGLNativeWindowWin32(_GLFWwindow* window);
 
-void _glfwGetRequiredInstanceExtensionsWin32(char** extensions);
+void _glfwGetRequiredInstanceExtensionsWin32(const char** extensions);
 GLFWbool _glfwGetPhysicalDevicePresentationSupportWin32(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
 VkResult _glfwCreateWindowSurfaceWin32(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
 

src/win32_window.c

@@ -2501,7 +2501,7 @@ EGLNativeWindowType _glfwGetEGLNativeWindowWin32(_GLFWwindow* window)
     return window->win32.handle;
 }
 
-void _glfwGetRequiredInstanceExtensionsWin32(char** extensions)
+void _glfwGetRequiredInstanceExtensionsWin32(const char** extensions)
 {
     if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_win32_surface)
         return;

src/wl_init.c

@@ -243,7 +243,7 @@ void libdecorHandleError(struct libdecor* context,
 
 static const struct libdecor_interface libdecorInterface =
 {
-    libdecorHandleError
+    .error = libdecorHandleError
 };
 
 static void libdecorReadyCallback(void* userData,
@@ -907,18 +907,6 @@ void _glfwTerminateWayland(void)
         libdecor_unref(_glfw.wl.libdecor.context);
     }
 
-    if (_glfw.wl.libdecor.handle)
-    {
-        _glfwPlatformFreeModule(_glfw.wl.libdecor.handle);
-        _glfw.wl.libdecor.handle = NULL;
-    }
-
-    if (_glfw.wl.egl.handle)
-    {
-        _glfwPlatformFreeModule(_glfw.wl.egl.handle);
-        _glfw.wl.egl.handle = NULL;
-    }
-
     if (_glfw.wl.xkb.composeState)
         xkb_compose_state_unref(_glfw.wl.xkb.composeState);
     if (_glfw.wl.xkb.keymap)
@@ -927,21 +915,11 @@ void _glfwTerminateWayland(void)
         xkb_state_unref(_glfw.wl.xkb.state);
     if (_glfw.wl.xkb.context)
         xkb_context_unref(_glfw.wl.xkb.context);
-    if (_glfw.wl.xkb.handle)
-    {
-        _glfwPlatformFreeModule(_glfw.wl.xkb.handle);
-        _glfw.wl.xkb.handle = NULL;
-    }
 
     if (_glfw.wl.cursorTheme)
         wl_cursor_theme_destroy(_glfw.wl.cursorTheme);
     if (_glfw.wl.cursorThemeHiDPI)
         wl_cursor_theme_destroy(_glfw.wl.cursorThemeHiDPI);
-    if (_glfw.wl.cursor.handle)
-    {
-        _glfwPlatformFreeModule(_glfw.wl.cursor.handle);
-        _glfw.wl.cursor.handle = NULL;
-    }
 
     for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
         wl_data_offer_destroy(_glfw.wl.offers[i].offer);
@@ -1001,6 +979,38 @@ void _glfwTerminateWayland(void)
     if (_glfw.wl.cursorTimerfd >= 0)
         close(_glfw.wl.cursorTimerfd);
 
+    // Free modules only after all Wayland termination functions are called
+
+    if (_glfw.egl.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.egl.handle);
+        _glfw.egl.handle = NULL;
+    }
+
+    if (_glfw.wl.libdecor.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.libdecor.handle);
+        _glfw.wl.libdecor.handle = NULL;
+    }
+
+    if (_glfw.wl.egl.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.egl.handle);
+        _glfw.wl.egl.handle = NULL;
+    }
+
+    if (_glfw.wl.xkb.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.xkb.handle);
+        _glfw.wl.xkb.handle = NULL;
+    }
+
+    if (_glfw.wl.cursor.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.cursor.handle);
+        _glfw.wl.cursor.handle = NULL;
+    }
+
     _glfw_free(_glfw.wl.clipboardString);
 }
 

src/wl_platform.h

@@ -136,18 +136,22 @@ struct wl_output;
 #define GLFW_WAYLAND_MONITOR_STATE        _GLFWmonitorWayland wl;
 #define GLFW_WAYLAND_CURSOR_STATE         _GLFWcursorWayland  wl;
 
-struct wl_cursor_image {
+struct wl_cursor_image
+{
     uint32_t width;
     uint32_t height;
     uint32_t hotspot_x;
     uint32_t hotspot_y;
     uint32_t delay;
 };
-struct wl_cursor {
+
+struct wl_cursor
+{
     unsigned int image_count;
     struct wl_cursor_image** images;
     char* name;
 };
+
 typedef struct wl_cursor_theme* (* PFN_wl_cursor_theme_load)(const char*, int, struct wl_shm*);
 typedef void (* PFN_wl_cursor_theme_destroy)(struct wl_cursor_theme*);
 typedef struct wl_cursor* (* PFN_wl_cursor_theme_get_cursor)(struct wl_cursor_theme*, const char*);
@@ -674,7 +678,7 @@ EGLenum _glfwGetEGLPlatformWayland(EGLint** attribs);
 EGLNativeDisplayType _glfwGetEGLNativeDisplayWayland(void);
 EGLNativeWindowType _glfwGetEGLNativeWindowWayland(_GLFWwindow* window);
 
-void _glfwGetRequiredInstanceExtensionsWayland(char** extensions);
+void _glfwGetRequiredInstanceExtensionsWayland(const char** extensions);
 GLFWbool _glfwGetPhysicalDevicePresentationSupportWayland(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
 VkResult _glfwCreateWindowSurfaceWayland(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
 

src/wl_window.c

@@ -620,8 +620,8 @@ static void surfaceHandleLeave(void* userData,
 
 static const struct wl_surface_listener surfaceListener =
 {
-    surfaceHandleEnter,
-    surfaceHandleLeave
+    .enter = surfaceHandleEnter,
+    .leave = surfaceHandleLeave
 };
 
 static void setIdleInhibitor(_GLFWwindow* window, GLFWbool enable)
@@ -762,8 +762,8 @@ static void xdgToplevelHandleClose(void* userData,
 
 static const struct xdg_toplevel_listener xdgToplevelListener =
 {
-    xdgToplevelHandleConfigure,
-    xdgToplevelHandleClose
+    .configure = xdgToplevelHandleConfigure,
+    .close = xdgToplevelHandleClose
 };
 
 static void xdgSurfaceHandleConfigure(void* userData,
@@ -937,10 +937,10 @@ void libdecorFrameHandleDismissPopup(struct libdecor_frame* frame,
 
 static const struct libdecor_frame_interface libdecorFrameInterface =
 {
-    libdecorFrameHandleConfigure,
-    libdecorFrameHandleClose,
-    libdecorFrameHandleCommit,
-    libdecorFrameHandleDismissPopup
+    .configure = libdecorFrameHandleConfigure,
+    .close = libdecorFrameHandleClose,
+    .commit = libdecorFrameHandleCommit,
+    .dismiss_popup = libdecorFrameHandleDismissPopup
 };
 
 static GLFWbool createLibdecorFrame(_GLFWwindow* window)
@@ -1290,7 +1290,7 @@ static GLFWbool flushDisplay(void)
         if (errno != EAGAIN)
             return GLFW_FALSE;
 
-        struct pollfd fd = { wl_display_get_fd(_glfw.wl.display), POLLOUT };
+        struct pollfd fd = { .fd = wl_display_get_fd(_glfw.wl.display), POLLOUT };
 
         while (poll(&fd, 1, -1) == -1)
         {
@@ -1413,7 +1413,7 @@ static void handleEvents(double* timeout)
 
             if (read(_glfw.wl.keyRepeatTimerfd, &repeats, sizeof(repeats)) == 8)
             {
-                if(_glfw.wl.keyboardFocus)
+                if (_glfw.wl.keyboardFocus)
                 {
                     for (uint64_t i = 0; i < repeats; i++)
                     {
@@ -1664,11 +1664,11 @@ static void pointerHandleAxis(void* userData,
 
 static const struct wl_pointer_listener pointerListener =
 {
-    pointerHandleEnter,
-    pointerHandleLeave,
-    pointerHandleMotion,
-    pointerHandleButton,
-    pointerHandleAxis,
+    .enter = pointerHandleEnter,
+    .leave = pointerHandleLeave,
+    .motion = pointerHandleMotion,
+    .button = pointerHandleButton,
+    .axis = pointerHandleAxis,
 };
 
 static void keyboardHandleKeymap(void* userData,
@@ -1692,7 +1692,8 @@ static void keyboardHandleKeymap(void* userData,
     }
 
     mapStr = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
-    if (mapStr == MAP_FAILED) {
+    if (mapStr == MAP_FAILED)
+    {
         close(fd);
         return;
     }
@@ -1838,7 +1839,9 @@ static void keyboardHandleKey(void* userData,
             timer.it_value.tv_nsec = (_glfw.wl.keyRepeatDelay % 1000) * 1000000;
             timerfd_settime(_glfw.wl.keyRepeatTimerfd, 0, &timer, NULL);
         }
-    } else if (scancode == _glfw.wl.keyRepeatScancode) {
+    }
+    else if (scancode == _glfw.wl.keyRepeatScancode)
+    {
         timerfd_settime(_glfw.wl.keyRepeatTimerfd, 0, &timer, NULL);
     }
 
@@ -1977,7 +1980,7 @@ static void dataOfferHandleOffer(void* userData,
 
 static const struct wl_data_offer_listener dataOfferListener =
 {
-    dataOfferHandleOffer
+    .offer = dataOfferHandleOffer
 };
 
 static void dataDeviceHandleDataOffer(void* userData,
@@ -1996,7 +1999,7 @@ static void dataDeviceHandleDataOffer(void* userData,
     _glfw.wl.offers = offers;
     _glfw.wl.offerCount++;
 
-    _glfw.wl.offers[_glfw.wl.offerCount - 1] = (_GLFWofferWayland) { offer };
+    _glfw.wl.offers[_glfw.wl.offerCount - 1] = (_GLFWofferWayland) { .offer = offer };
     wl_data_offer_add_listener(offer, &dataOfferListener, NULL);
 }
 
@@ -2974,10 +2977,16 @@ static void lockPointer(_GLFWwindow* window)
     if (!_glfw.wl.relativePointerManager)
     {
         _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
-                        "Wayland: The compositor does not support pointer locking");
+                        "Wayland: The compositor does not support relative pointer motion");
         return;
     }
 
+    if (!_glfw.wl.pointerConstraints)
+    {
+        _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                        "Wayland: The compositor does not support locking the pointer");
+    }
+
     window->wl.relativePointer =
         zwp_relative_pointer_manager_v1_get_relative_pointer(
             _glfw.wl.relativePointerManager,
@@ -3025,6 +3034,12 @@ static const struct zwp_confined_pointer_v1_listener confinedPointerListener =
 
 static void confinePointer(_GLFWwindow* window)
 {
+    if (!_glfw.wl.pointerConstraints)
+    {
+        _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                        "Wayland: The compositor does not support confining the pointer");
+    }
+
     window->wl.confinedPointer =
         zwp_pointer_constraints_v1_confine_pointer(
             _glfw.wl.pointerConstraints,
@@ -3185,9 +3200,9 @@ static void dataSourceHandleCancelled(void* userData,
 
 static const struct wl_data_source_listener dataSourceListener =
 {
-    dataSourceHandleTarget,
-    dataSourceHandleSend,
-    dataSourceHandleCancelled,
+    .target = dataSourceHandleTarget,
+    .send = dataSourceHandleSend,
+    .cancelled = dataSourceHandleCancelled,
 };
 
 void _glfwSetClipboardStringWayland(const char* string)
@@ -3261,7 +3276,7 @@ EGLNativeWindowType _glfwGetEGLNativeWindowWayland(_GLFWwindow* window)
     return window->wl.egl.window;
 }
 
-void _glfwGetRequiredInstanceExtensionsWayland(char** extensions)
+void _glfwGetRequiredInstanceExtensionsWayland(const char** extensions)
 {
     if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_wayland_surface)
         return;

src/x11_init.c

@@ -231,7 +231,7 @@ static void createKeyTables(void)
         const struct
         {
             int key;
-            char* name;
+            const char* name;
         } keymap[] =
         {
             { GLFW_KEY_GRAVE_ACCENT, "TLDE" },
@@ -366,7 +366,7 @@ static void createKeyTables(void)
             // keyboard layout. Because function keys aren't mapped correctly
             // when using traditional KeySym translations, they are mapped
             // here instead.
-            for (int i = 0;  i < sizeof(keymap) / sizeof(keymap[0]);  i++)
+            for (size_t i = 0;  i < sizeof(keymap) / sizeof(keymap[0]);  i++)
             {
                 if (strncmp(desc->names->keys[scancode].name,
                             keymap[i].name,
@@ -390,7 +390,7 @@ static void createKeyTables(void)
                     continue;
                 }
 
-                for (int j = 0;  j < sizeof(keymap) / sizeof(keymap[0]);  j++)
+                for (size_t j = 0;  j < sizeof(keymap) / sizeof(keymap[0]);  j++)
                 {
                     if (strncmp(desc->names->key_aliases[i].alias,
                                 keymap[j].name,

src/x11_monitor.c

@@ -151,7 +151,8 @@ void _glfwPollMonitorsX11(void)
             }
 
             XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, oi->crtc);
-            if (!ci) {
+            if (!ci)
+            {
                 XRRFreeOutputInfo(oi);
                 continue;
             }
@@ -185,8 +186,8 @@ void _glfwPollMonitorsX11(void)
             {
                 if (screens[j].x_org == ci->x &&
                     screens[j].y_org == ci->y &&
-                    screens[j].width == ci->width &&
-                    screens[j].height == ci->height)
+                    screens[j].width == (int)ci->width &&
+                    screens[j].height == (int)ci->height)
                 {
                     monitor->x11.index = j;
                     break;
@@ -578,7 +579,7 @@ void _glfwSetGammaRampX11(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
 {
     if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
     {
-        if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != ramp->size)
+        if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != (int)ramp->size)
         {
             _glfwInputError(GLFW_PLATFORM_ERROR,
                             "X11: Gamma ramp size must match current ramp size");

src/x11_platform.h

@@ -960,7 +960,7 @@ EGLenum _glfwGetEGLPlatformX11(EGLint** attribs);
 EGLNativeDisplayType _glfwGetEGLNativeDisplayX11(void);
 EGLNativeWindowType _glfwGetEGLNativeWindowX11(_GLFWwindow* window);
 
-void _glfwGetRequiredInstanceExtensionsX11(char** extensions);
+void _glfwGetRequiredInstanceExtensionsX11(const char** extensions);
 GLFWbool _glfwGetPhysicalDevicePresentationSupportX11(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
 VkResult _glfwCreateWindowSurfaceX11(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
 

src/x11_window.c

@@ -62,7 +62,7 @@
 //
 static GLFWbool waitForX11Event(double* timeout)
 {
-    struct pollfd fd = { ConnectionNumber(_glfw.x11.display), POLLIN };
+    struct pollfd fd = { .fd = ConnectionNumber(_glfw.x11.display), .events = POLLIN };
 
     while (!XPending(_glfw.x11.display))
     {
@@ -97,7 +97,7 @@ static GLFWbool waitForAnyEvent(double* timeout)
         if (!_glfwPollPOSIX(fds, sizeof(fds) / sizeof(fds[0]), timeout))
             return GLFW_FALSE;
 
-        for (int i = 1; i < sizeof(fds) / sizeof(fds[0]); i++)
+        for (size_t i = 1; i < sizeof(fds) / sizeof(fds[0]); i++)
         {
             if (fds[i].revents & POLLIN)
                 return GLFW_TRUE;
@@ -235,10 +235,10 @@ static int translateState(int state)
 
 // Translates an X11 key code to a GLFW key token
 //
-static int translateKey(int scancode)
+static int translateKey(unsigned int scancode)
 {
     // Use the pre-filled LUT (see createKeyTables() in x11_init.c)
-    if (scancode < 0 || scancode > 255)
+    if (scancode > 255)
         return GLFW_KEY_UNKNOWN;
 
     return _glfw.x11.keycodes[scancode];
@@ -1149,7 +1149,7 @@ static void releaseMonitor(_GLFWwindow* window)
 //
 static void processEvent(XEvent *event)
 {
-    int keycode = 0;
+    unsigned int keycode = 0;
     Bool filtered = False;
 
     // HACK: Save scancode as some IMs clear the field in XFilterEvent
@@ -2207,10 +2207,10 @@ void _glfwGetWindowSizeX11(_GLFWwindow* window, int* width, int* height)
 
 void _glfwSetWindowSizeX11(_GLFWwindow* window, int width, int height)
 {
-	// The dimensions must be nonzero, or a BadValue error results.
+    // The dimensions must be nonzero, or a BadValue error results
     width = _glfw_max(1, width);
     height = _glfw_max(1, height);
-	
+
     if (window->monitor)
     {
         if (window->monitor->window == window)
@@ -3141,7 +3141,7 @@ EGLNativeWindowType _glfwGetEGLNativeWindowX11(_GLFWwindow* window)
         return (EGLNativeWindowType) window->x11.handle;
 }
 
-void _glfwGetRequiredInstanceExtensionsX11(char** extensions)
+void _glfwGetRequiredInstanceExtensionsX11(const char** extensions)
 {
     if (!_glfw.vk.KHR_surface)
         return;