Merge branch '3.3-stable' into new-cursors-on-3.3-stable

.appveyor.yml

@@ -1,10 +1,10 @@
 image:
     - Visual Studio 2015
-    - Visual Studio 2019
 branches:
     only:
         - ci
         - master
+        - latest
         - 3.3-stable
 skip_tags: true
 environment:
@@ -21,26 +21,13 @@ environment:
         - GENERATOR: Visual Studio 10 2010
           BUILD_SHARED_LIBS: OFF
           CFLAGS: /WX
-        - GENERATOR: Visual Studio 16 2019
-          BUILD_SHARED_LIBS: ON
-          CFLAGS: /WX
-        - GENERATOR: Visual Studio 16 2019
-          BUILD_SHARED_LIBS: OFF
-          CFLAGS: /WX
 matrix:
     fast_finish: true
-    exclude:
-        - image: Visual Studio 2015
-          GENERATOR: Visual Studio 16 2019
-        - image: Visual Studio 2019
-          GENERATOR: Visual Studio 10 2010
-        - image: Visual Studio 2019
-          GENERATOR: MinGW Makefiles
 for:
 -
     matrix:
-        except:
+        only:
-            - GENERATOR: Visual Studio 10 2010
+            - GENERATOR: MinGW Makefiles
     build_script:
         - set PATH=%PATH:C:\Program Files\Git\usr\bin=C:\MinGW\bin%
         - cmake -S . -B build -G "%GENERATOR%" -DBUILD_SHARED_LIBS=%BUILD_SHARED_LIBS%

.github/workflows/build.yml

@@ -0,0 +1,116 @@
+name: Build
+on:
+    pull_request:
+    push:
+        branches: [ ci, master, latest, 3.3-stable ]
+permissions:
+    statuses: write
+    contents: read
+
+jobs:
+    build-linux-x11-clang:
+        name: X11 (Linux, Clang)
+        runs-on: ubuntu-latest
+        env:
+            CC: clang
+            CFLAGS: -Werror
+        steps:
+            - uses: actions/checkout@v2
+            - name: Install dependencies
+              run: |
+                  sudo apt update
+                  sudo apt install libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxext-dev
+
+            - name: Configure static library
+              run: cmake -S . -B build-static
+            - name: Build static library
+              run: cmake --build build-static --parallel
+
+            - name: Configure shared library
+              run: cmake -S . -B build-shared -D BUILD_SHARED_LIBS=ON
+            - name: Build shared library
+              run: cmake --build build-shared --parallel
+
+    build-linux-wayland-clang:
+        name: Wayland (Linux, Clang)
+        runs-on: ubuntu-latest
+        env:
+            CC: clang
+            CFLAGS: -Werror
+        steps:
+            - uses: actions/checkout@v2
+            - name: Install dependencies
+              run: |
+                  sudo apt update
+                  sudo apt install wayland-protocols libwayland-dev libxkbcommon-dev extra-cmake-modules
+
+            - name: Configure static library
+              run: cmake -S . -B build-static -D GLFW_USE_WAYLAND=ON
+            - name: Build static library
+              run: cmake --build build-static --parallel
+
+            - name: Configure shared library
+              run: cmake -S . -B build-shared -D GLFW_USE_WAYLAND=ON -D BUILD_SHARED_LIBS=ON
+            - name: Build shared library
+              run: cmake --build build-shared --parallel
+
+    build-linux-null-clang:
+        name: Null (Linux, Clang)
+        runs-on: ubuntu-latest
+        env:
+            CC: clang
+            CFLAGS: -Werror
+        steps:
+            - uses: actions/checkout@v2
+            - name: Install dependencies
+              run: |
+                  sudo apt update
+                  sudo apt install libosmesa6-dev
+
+            - name: Configure static library
+              run: cmake -S . -B build-static -D GLFW_USE_OSMESA=ON
+            - name: Build static library
+              run: cmake --build build-static --parallel
+
+            - name: Configure shared library
+              run: cmake -S . -B build-shared -D GLFW_USE_OSMESA=ON -D BUILD_SHARED_LIBS=ON
+            - name: Build shared library
+              run: cmake --build build-shared --parallel
+
+    build-macos-cocoa-clang:
+        name: Cocoa (macOS, Clang)
+        runs-on: macos-latest
+        env:
+            CFLAGS: -Werror
+            MACOSX_DEPLOYMENT_TARGET: 10.8
+        steps:
+            - uses: actions/checkout@v2
+
+            - name: Configure static library
+              run: cmake -S . -B build-static
+            - name: Build static library
+              run: cmake --build build-static --parallel
+
+            - name: Configure shared library
+              run: cmake -S . -B build-shared -D BUILD_SHARED_LIBS=ON
+            - name: Build shared library
+              run: cmake --build build-shared --parallel
+
+    build-windows-win32-vs2019:
+        name: Win32 (Windows, VS2019)
+        runs-on: windows-latest
+        env:
+            CFLAGS: /WX
+        steps:
+            - uses: actions/checkout@v2
+
+            - name: Configure static library
+              run: cmake -S . -B build-static -G "Visual Studio 16 2019"
+            - name: Build static library
+              run: cmake --build build-static --parallel
+
+            - name: Configure shared library
+              run: cmake -S . -B build-shared -G "Visual Studio 16 2019" -D BUILD_SHARED_LIBS=ON
+            - name: Build shared library
+              run: cmake --build build-shared --parallel
+

.travis.yml

@@ -1,114 +0,0 @@
-language: c
-compiler: clang
-branches:
-    only:
-        - ci
-        - master
-        - 3.3-stable
-matrix:
-    include:
-        - os: linux
-          dist: xenial
-          name: "X11 shared library"
-          addons:
-              apt:
-                  packages:
-                      - libxrandr-dev
-                      - libxinerama-dev
-                      - libxcursor-dev
-                      - libxi-dev
-          env:
-              - BUILD_SHARED_LIBS=ON
-              - CFLAGS=-Werror
-        - os: linux
-          dist: xenial
-          name: "X11 static library"
-          addons:
-              apt:
-                  packages:
-                      - libxrandr-dev
-                      - libxinerama-dev
-                      - libxcursor-dev
-                      - libxi-dev
-          env:
-              - BUILD_SHARED_LIBS=OFF
-              - CFLAGS=-Werror
-        - os: linux
-          dist: focal
-          name: "Wayland shared library"
-          addons:
-              apt:
-                  packages:
-                      - extra-cmake-modules
-                      - wayland-protocols
-                      - libwayland-dev
-                      - libxkbcommon-dev
-                      - libegl1-mesa-dev
-          env:
-              - USE_WAYLAND=ON
-              - BUILD_SHARED_LIBS=ON
-              - CFLAGS=-Werror
-        - os: linux
-          dist: focal
-          name: "Wayland static library"
-          addons:
-              apt:
-                  packages:
-                      - extra-cmake-modules
-                      - wayland-protocols
-                      - libwayland-dev
-                      - libxkbcommon-dev
-                      - libegl1-mesa-dev
-          env:
-              - USE_WAYLAND=ON
-              - BUILD_SHARED_LIBS=OFF
-              - CFLAGS=-Werror
-        - os: linux
-          dist: bionic
-          name: "Null shared library"
-          addons:
-              apt:
-                  packages:
-                      - libosmesa6-dev
-          env:
-              - BUILD_SHARED_LIBS=ON
-              - USE_OSMESA=ON
-              - CFLAGS=-Werror
-        - os: linux
-          dist: bionic
-          name: "Null static library"
-          addons:
-              apt:
-                  packages:
-                      - libosmesa6-dev
-          env:
-              - BUILD_SHARED_LIBS=OFF
-              - USE_OSMESA=ON
-              - CFLAGS=-Werror
-        - os: osx
-          name: "Cocoa shared library"
-          env:
-              - BUILD_SHARED_LIBS=ON
-              - CFLAGS=-Werror
-              - MACOSX_DEPLOYMENT_TARGET=10.8
-        - os: osx
-          name: "Cocoa static library"
-          env:
-              - BUILD_SHARED_LIBS=OFF
-              - CFLAGS=-Werror
-              - MACOSX_DEPLOYMENT_TARGET=10.8
-script:
-    - if grep -Inr '\s$' src include docs tests examples CMake *.md .gitattributes .gitignore; then
-          echo Trailing whitespace found, aborting;
-          exit 1;
-      fi
-    - mkdir build
-    - cd build
-    - cmake -DCMAKE_VERBOSE_MAKEFILE=ON -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -DGLFW_USE_WAYLAND=${USE_WAYLAND} -DGLFW_USE_OSMESA=${USE_OSMESA} ..
-    - cmake --build .
-notifications:
-    email:
-        recipients:
-            - ci@glfw.org
-    on_success: never
-    on_failure: always

CMake/modules/FindEpollShim.cmake

@@ -13,5 +13,5 @@ if (EPOLLSHIM_INCLUDE_DIRS AND EPOLLSHIM_LIBRARIES)
 endif (EPOLLSHIM_INCLUDE_DIRS AND EPOLLSHIM_LIBRARIES)
 
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(EPOLLSHIM DEFAULT_MSG EPOLLSHIM_LIBRARIES EPOLLSHIM_INCLUDE_DIRS)
+find_package_handle_standard_args(EpollShim DEFAULT_MSG EPOLLSHIM_LIBRARIES EPOLLSHIM_INCLUDE_DIRS)
 mark_as_advanced(EPOLLSHIM_INCLUDE_DIRS EPOLLSHIM_LIBRARIES)

CMakeLists.txt

@@ -80,8 +80,10 @@ if (MSVC)
         # Workaround for VS 2008 not shipping with stdint.h
         list(APPEND glfw_INCLUDE_DIRS "${GLFW_SOURCE_DIR}/deps/vs2008")
     endif()
+endif()
 
-    if (NOT USE_MSVC_RUNTIME_LIBRARY_DLL)
+if (MSVC AND NOT USE_MSVC_RUNTIME_LIBRARY_DLL)
+    if (${CMAKE_VERSION} VERSION_LESS 3.15)
         foreach (flag CMAKE_C_FLAGS
                       CMAKE_C_FLAGS_DEBUG
                       CMAKE_C_FLAGS_RELEASE
@@ -96,6 +98,8 @@ if (MSVC)
             endif()
 
         endforeach()
+    else()
+        set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
     endif()
 endif()
 

README.md

@@ -1,6 +1,6 @@
 # GLFW
 
-[![Build status](https://travis-ci.org/glfw/glfw.svg?branch=master)](https://travis-ci.org/glfw/glfw)
+[![Build status](https://github.com/glfw/glfw/actions/workflows/build.yml/badge.svg)](https://github.com/glfw/glfw/actions)
 [![Build status](https://ci.appveyor.com/api/projects/status/0kf0ct9831i5l6sp/branch/master?svg=true)](https://ci.appveyor.com/project/elmindreda/glfw)
 [![Coverity Scan](https://scan.coverity.com/projects/4884/badge.svg)](https://scan.coverity.com/projects/glfw-glfw)
 
@@ -14,18 +14,18 @@ GLFW natively supports Windows, macOS and Linux and other Unix-like systems.  On
 Linux both X11 and Wayland are supported.
 
 GLFW is licensed under the [zlib/libpng
-license](http://www.glfw.org/license.html).
+license](https://www.glfw.org/license.html).
 
-You can [download](http://www.glfw.org/download.html) the latest stable release
+You can [download](https://www.glfw.org/download.html) the latest stable release
 as source or Windows binaries, or fetch the `latest` branch from GitHub.  Each
 release starting with 3.0 also has a corresponding [annotated
 tag](https://github.com/glfw/glfw/releases) with source and binary archives.
 
-The [documentation](http://www.glfw.org/docs/latest/) is available online and is
+The [documentation](https://www.glfw.org/docs/latest/) is available online and is
 included in all source and binary archives.  See the [release
 notes](https://www.glfw.org/docs/latest/news.html) for new features, caveats and
 deprecations in the latest release.  For more details see the [version
-history](http://www.glfw.org/changelog.html).
+history](https://www.glfw.org/changelog.html).
 
 The `master` branch is the stable integration branch and _should_ always compile
 and run on all supported platforms, although details of newly added features may
@@ -34,9 +34,9 @@ fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until
 they are stable enough to merge.
 
 If you are new to GLFW, you may find the
-[tutorial](http://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful.  If
+[tutorial](https://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful.  If
 you have used GLFW 2 in the past, there is a [transition
-guide](http://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
+guide](https://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
 3 API.
 
 
@@ -52,16 +52,16 @@ MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
 and Clang.  It will likely compile in other environments as well, but this is
 not regularly tested.
 
-There are [pre-compiled Windows binaries](http://www.glfw.org/download.html)
+There are [pre-compiled Windows binaries](https://www.glfw.org/download.html)
 available for all supported compilers.
 
-See the [compilation guide](http://www.glfw.org/docs/latest/compile.html) for
+See the [compilation guide](https://www.glfw.org/docs/latest/compile.html) for
 more information about how to compile GLFW yourself.
 
 
 ## Using GLFW
 
-See the [documentation](http://www.glfw.org/docs/latest/) for tutorials, guides
+See the [documentation](https://www.glfw.org/docs/latest/) for tutorials, guides
 and the API reference.
 
 
@@ -79,7 +79,7 @@ Unix-like systems running the X Window System are supported even without
 a desktop environment or modern extensions, although some features require
 a running window or clipboard manager.  The OSMesa backend requires Mesa 6.3.
 
-See the [compatibility guide](http://www.glfw.org/docs/latest/compat.html)
+See the [compatibility guide](https://www.glfw.org/docs/latest/compat.html)
 in the documentation for more information.
 
 
@@ -104,7 +104,7 @@ located in the `deps/` directory.
  - [Nuklear](https://github.com/Immediate-Mode-UI/Nuklear) for test and example UI
  - [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk
 
-The documentation is generated with [Doxygen](http://doxygen.org/) if CMake can
+The documentation is generated with [Doxygen](https://doxygen.org/) if CMake can
 find that tool.
 
 
@@ -118,17 +118,21 @@ information on what to include when reporting a bug.
 
 ## Changelog
 
-There is nothing here yet.
+ - Bugfix: Buffers were swapped at creation on single-buffered windows (#1873)
+ - [Win32] Bugfix: `USE_MSVC_RUNTIME_LIBRARY_DLL` had no effect on CMake 3.15 or
+   later (#1783,#1796)
+ - [Win32] Bugfix: Compilation with LLVM for Windows failed (#1807,#1824,#1874)
+ - [EGL] Bugfix: The `GLFW_DOUBLEBUFFER` context attribute was ignored (#1843)
 
 
 ## Contact
 
-On [glfw.org](http://www.glfw.org/) you can find the latest version of GLFW, as
+On [glfw.org](https://www.glfw.org/) you can find the latest version of GLFW, as
 well as news, documentation and other information about the project.
 
 If you have questions related to the use of GLFW, we have a
 [forum](https://discourse.glfw.org/), and the `#glfw` IRC channel on
-[Freenode](http://freenode.net/).
+[Libera.Chat](https://libera.chat/).
 
 If you have a bug to report, a patch to submit or a feature you'd like to
 request, please file it in the
@@ -175,6 +179,7 @@ skills.
  - Andrew Corrigan
  - Bailey Cosier
  - Noel Cower
+ - CuriouserThing
  - Jason Daly
  - Jarrod Davis
  - Olivier Delannoy

docs/CONTRIBUTING.md

@@ -24,7 +24,7 @@ section](https://discourse.glfw.org/c/support) of the forum, under the [Stack
 Overflow tag](https://stackoverflow.com/questions/tagged/glfw) or [Game
 Development tag](https://gamedev.stackexchange.com/questions/tagged/glfw) on
 Stack Exchange or in the IRC channel `#glfw` on
-[Freenode](http://freenode.net/).
+[Libera.Chat](https://libera.chat/).
 
 Questions about the design or implementation of GLFW or about future plans
 should be asked in the [dev section](https://discourse.glfw.org/c/dev) of the

docs/SUPPORT.md

@@ -1,11 +1,11 @@
 # Support resources
 
-See the [latest documentation](http://www.glfw.org/docs/latest/) for tutorials,
+See the [latest documentation](https://www.glfw.org/docs/latest/) for tutorials,
 guides and the API reference.
 
 If you have questions about using GLFW, we have a
 [forum](https://discourse.glfw.org/), and the `#glfw` IRC channel on
-[Freenode](http://freenode.net/).
+[Libera.Chat](https://libera.chat/).
 
 Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
 Please check the [contribution

docs/compile.dox

@@ -234,6 +234,10 @@ __USE_MSVC_RUNTIME_LIBRARY_DLL__ determines whether to use the DLL version or th
 static library version of the Visual C++ runtime library.  If set to `ON`, the
 DLL version of the Visual C++ library is used.
 
+@note On CMake 3.15 and later you can set the
+[CMAKE_MSVC_RUNTIME_LIBRARY](https://cmake.org/cmake/help/latest/variable/CMAKE_MSVC_RUNTIME_LIBRARY.html)
+variable instead of this option.
+
 @anchor GLFW_USE_HYBRID_HPG
 __GLFW_USE_HYBRID_HPG__ determines whether to export the `NvOptimusEnablement` and
 `AmdPowerXpressRequestHighPerformance` symbols, which force the use of the

docs/context.dox

@@ -142,9 +142,9 @@ as extensions until they become obsolete.
 
 An extension is defined by:
 
-- An extension name (e.g. `GL_ARB_debug_output`)
+- An extension name (e.g. `GL_ARB_gl_spirv`)
-- New OpenGL tokens (e.g. `GL_DEBUG_SEVERITY_HIGH_ARB`)
+- New OpenGL tokens (e.g. `GL_SPIR_V_BINARY_ARB`)
-- New OpenGL functions (e.g. `glGetDebugMessageLogARB`)
+- New OpenGL functions (e.g. `glSpecializeShaderARB`)
 
 Note the `ARB` affix, which stands for Architecture Review Board and is used
 for official extensions.  The extension above was created by the ARB, but there
@@ -229,9 +229,9 @@ To check whether a specific extension is supported, use the `GLAD_GL_xxx`
 booleans.
 
 @code
-if (GLAD_GL_ARB_debug_output)
+if (GLAD_GL_ARB_gl_spirv)
 {
-    // Use GL_ARB_debug_output
+    // Use GL_ARB_gl_spirv
 }
 @endcode
 
@@ -263,8 +263,8 @@ included in your development environment may be several years out of date and
 may not include the extensions you wish to use.
 
 The header defines function pointer types for all functions of all extensions it
-supports.  These have names like `PFNGLGETDEBUGMESSAGELOGARBPROC` (for
+supports.  These have names like `PFNGLSPECIALIZESHADERARBPROC` (for
-`glGetDebugMessageLogARB`), i.e. the name is made uppercase and `PFN` (pointer
+`glSpecializeShaderARB`), i.e. the name is made uppercase and `PFN` (pointer
 to function) and `PROC` (procedure) are added to the ends.
 
 To include the extension header, define @ref GLFW_INCLUDE_GLEXT before including
@@ -284,7 +284,7 @@ is necessary to check at run-time whether the context supports the extension.
 This is done with @ref glfwExtensionSupported.
 
 @code
-if (glfwExtensionSupported("GL_ARB_debug_output"))
+if (glfwExtensionSupported("GL_ARB_gl_spirv"))
 {
     // The extension is supported by the current context
 }
@@ -303,7 +303,7 @@ your operating system, making it necessary to fetch them at run time.  You can
 retrieve pointers to these functions with @ref glfwGetProcAddress.
 
 @code
-PFNGLGETDEBUGMESSAGELOGARBPROC pfnGetDebugMessageLog = glfwGetProcAddress("glGetDebugMessageLogARB");
+PFNGLSPECIALIZESHADERARBPROC pfnSpecializeShaderARB = glfwGetProcAddress("glSpecializeShaderARB");
 @endcode
 
 In general, you should avoid giving the function pointer variables the (exact)
@@ -317,28 +317,28 @@ when used together.
 #define GLFW_INCLUDE_GLEXT
 #include <GLFW/glfw3.h>
 
-#define glGetDebugMessageLogARB pfnGetDebugMessageLog
+#define glSpecializeShaderARB pfnSpecializeShaderARB
-PFNGLGETDEBUGMESSAGELOGARBPROC pfnGetDebugMessageLog;
+PFNGLSPECIALIZESHADERARBPROC pfnSpecializeShaderARB;
 
 // Flag indicating whether the extension is supported
-int has_ARB_debug_output = 0;
+int has_ARB_gl_spirv = 0;
 
 void load_extensions(void)
 {
-    if (glfwExtensionSupported("GL_ARB_debug_output"))
+    if (glfwExtensionSupported("GL_ARB_gl_spirv"))
     {
-        pfnGetDebugMessageLog = (PFNGLGETDEBUGMESSAGELOGARBPROC)
+        pfnSpecializeShaderARB = (PFNGLSPECIALIZESHADERARBPROC)
-            glfwGetProcAddress("glGetDebugMessageLogARB");
+            glfwGetProcAddress("glSpecializeShaderARB");
-        has_ARB_debug_output = 1;
+        has_ARB_gl_spirv = 1;
     }
 }
 
 void some_function(void)
 {
-    if (has_ARB_debug_output)
+    if (has_ARB_gl_spirv)
     {
         // Now the extension function can be called as usual
-        glGetDebugMessageLogARB(...);
+        glSpecializeShaderARB(...);
     }
 }
 @endcode

docs/intro.dox

@@ -86,7 +86,7 @@ Setting these hints requires no platform specific headers or functions.
 @anchor GLFW_JOYSTICK_HAT_BUTTONS
 __GLFW_JOYSTICK_HAT_BUTTONS__ specifies whether to also expose joystick hats as
 buttons, for compatibility with earlier versions of GLFW that did not have @ref
-glfwGetJoystickHats.  Set this with @ref glfwInitHint.
+glfwGetJoystickHats.  Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
 
 
 @subsubsection init_hints_osx macOS specific init hints

docs/window.dox

@@ -236,7 +236,8 @@ does not affect window decorations.  Possible values are `GLFW_TRUE` and
 
 @anchor GLFW_FOCUS_ON_SHOW_hint
 __GLFW_FOCUS_ON_SHOW__ specifies whether the window will be given input
-focus when @ref glfwShowWindow is called. Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
+focus when @ref glfwShowWindow is called. Possible values are `GLFW_TRUE` and
+`GLFW_FALSE`.
 
 @anchor GLFW_SCALE_TO_MONITOR
 __GLFW_SCALE_TO_MONITOR__ specified whether the window content area should be
@@ -271,7 +272,6 @@ __GLFW_ACCUM_ALPHA_BITS__ specify the desired bit depths of the various
 components of the accumulation buffer.  A value of `GLFW_DONT_CARE` means the
 application has no preference.
 
-@par
 Accumulation buffers are a legacy OpenGL feature and should not be used in new
 code.
 
@@ -279,7 +279,6 @@ code.
 __GLFW_AUX_BUFFERS__ specifies the desired number of auxiliary buffers.  A value
 of `GLFW_DONT_CARE` means the application has no preference.
 
-@par
 Auxiliary buffers are a legacy OpenGL feature and should not be used in new
 code.
 
@@ -296,14 +295,12 @@ the application has no preference.
 __GLFW_SRGB_CAPABLE__ specifies whether the framebuffer should be sRGB capable.
 Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
 
-@par
+@note __OpenGL:__ If enabled and supported by the system, the
-__OpenGL:__ If enabled and supported by the system, the `GL_FRAMEBUFFER_SRGB`
+`GL_FRAMEBUFFER_SRGB` enable will control sRGB rendering.  By default, sRGB
-enable will control sRGB rendering.  By default, sRGB rendering will be
+rendering will be disabled.
-disabled.
 
-@par
+@note __OpenGL ES:__ If enabled and supported by the system, the context will
-__OpenGL ES:__ If enabled and supported by the system, the context will always
+always have sRGB rendering enabled.
-have sRGB rendering enabled.
 
 @anchor GLFW_DOUBLEBUFFER
 __GLFW_DOUBLEBUFFER__ specifies whether the framebuffer should be double
@@ -332,28 +329,22 @@ create the context.  Possible values are `GLFW_NATIVE_CONTEXT_API`,
 `GLFW_EGL_CONTEXT_API` and `GLFW_OSMESA_CONTEXT_API`.  This is a hard
 constraint.  If no client API is requested, this hint is ignored.
 
-@par
+An [extension loader library](@ref context_glext_auto) that assumes it knows
-@macos The EGL API is not available on this platform and requests to use it
+which API was used to create the current context may fail if you change this
-will fail.
+hint.  This can be resolved by having it load functions via @ref
+glfwGetProcAddress.
 
-@par
+@note @wayland The EGL API _is_ the native context creation API, so this hint
-__Wayland:__ The EGL API _is_ the native context creation API, so this hint
 will have no effect.
 
-@par
+@note @x11 On some Linux systems, creating contexts via both the native and EGL
-__OSMesa:__ As its name implies, an OpenGL context created with OSMesa does not
+APIs in a single process will cause the application to segfault.  Stick to one
-update the window contents when its buffers are swapped.  Use OpenGL functions
+API or the other on Linux for now.
-or the OSMesa native access functions @ref glfwGetOSMesaColorBuffer and @ref
-glfwGetOSMesaDepthBuffer to retrieve the framebuffer contents.
 
-@note An OpenGL extension loader library that assumes it knows which context
+@note __OSMesa:__ As its name implies, an OpenGL context created with OSMesa
-creation API is used on a given platform may fail if you change this hint.  This
+does not update the window contents when its buffers are swapped.  Use OpenGL
-can be resolved by having it load via @ref glfwGetProcAddress, which always uses
+functions or the OSMesa native access functions @ref glfwGetOSMesaColorBuffer
-the selected API.
+and @ref glfwGetOSMesaDepthBuffer to retrieve the framebuffer contents.
-
-@bug On some Linux systems, creating contexts via both the native and EGL APIs
-in a single process will cause the application to segfault.  Stick to one API or
-the other on Linux for now.
 
 @anchor GLFW_CONTEXT_VERSION_MAJOR_hint
 @anchor GLFW_CONTEXT_VERSION_MINOR_hint
@@ -361,27 +352,24 @@ __GLFW_CONTEXT_VERSION_MAJOR__ and __GLFW_CONTEXT_VERSION_MINOR__ specify the
 client API version that the created context must be compatible with.  The exact
 behavior of these hints depend on the requested client API.
 
-@note Do not confuse these hints with `GLFW_VERSION_MAJOR` and
-`GLFW_VERSION_MINOR`, which provide the API version of the GLFW header.
-
-@par
-__OpenGL:__ These hints are not hard constraints, but creation will fail if the
-OpenGL version of the created context is less than the one requested.  It is
-therefore perfectly safe to use the default of version 1.0 for legacy code and
-you will still get backwards-compatible contexts of version 3.0 and above when
-available.
-
-@par
 While there is no way to ask the driver for a context of the highest supported
 version, GLFW will attempt to provide this when you ask for a version 1.0
 context, which is the default for these hints.
 
-@par
+Do not confuse these hints with @ref GLFW_VERSION_MAJOR and @ref
-__OpenGL ES:__ These hints are not hard constraints, but creation will fail if
+GLFW_VERSION_MINOR, which provide the API version of the GLFW header.
-the OpenGL ES version of the created context is less than the one requested.
+
-Additionally, OpenGL ES 1.x cannot be returned if 2.0 or later was requested,
+@note __OpenGL:__ These hints are not hard constraints, but creation will fail
-and vice versa.  This is because OpenGL ES 3.x is backward compatible with 2.0,
+if the OpenGL version of the created context is less than the one requested.  It
-but OpenGL ES 2.0 is not backward compatible with 1.x.
+is therefore perfectly safe to use the default of version 1.0 for legacy code
+and you will still get backwards-compatible contexts of version 3.0 and above
+when available.
+
+@note __OpenGL ES:__ These hints are not hard constraints, but creation will
+fail if the OpenGL ES version of the created context is less than the one
+requested.  Additionally, OpenGL ES 1.x cannot be returned if 2.0 or later was
+requested, and vice versa.  This is because OpenGL ES 3.x is backward compatible
+with 2.0, but OpenGL ES 2.0 is not backward compatible with 1.x.
 
 @note @macos The OS only supports forward-compatible core profile contexts for
 OpenGL versions 3.2 and later.  Before creating an OpenGL context of version
@@ -396,7 +384,6 @@ forward-compatible, i.e. one where all functionality deprecated in the requested
 version of OpenGL is removed.  This must only be used if the requested OpenGL
 version is 3.0 or above.  If OpenGL ES is requested, this hint is ignored.
 
-@par
 Forward-compatibility is described in detail in the
 [OpenGL Reference Manual](https://www.opengl.org/registry/).
 
@@ -405,7 +392,6 @@ __GLFW_OPENGL_DEBUG_CONTEXT__ specifies whether the context should be created
 in debug mode, which may provide additional error and diagnostic reporting
 functionality.  Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
 
-@par
 Debug contexts for OpenGL and OpenGL ES are described in detail by the
 [GL_KHR_debug](https://www.khronos.org/registry/OpenGL/extensions/KHR/KHR_debug.txt)
 extension.
@@ -418,7 +404,6 @@ a specific profile.  If requesting an OpenGL version below 3.2,
 `GLFW_OPENGL_ANY_PROFILE` must be used.  If OpenGL ES is requested, this hint
 is ignored.
 
-@par
 OpenGL profiles are described in detail in the
 [OpenGL Reference Manual](https://www.opengl.org/registry/).
 
@@ -438,7 +423,6 @@ the pipeline will be flushed whenever the context is released from being the
 current one.  If the behavior is `GLFW_RELEASE_BEHAVIOR_NONE`, the pipeline will
 not be flushed on release.
 
-@par
 Context release behaviors are described in detail by the
 [GL_KHR_context_flush_control](https://www.opengl.org/registry/specs/KHR/context_flush_control.txt)
 extension.
@@ -448,7 +432,6 @@ __GLFW_CONTEXT_NO_ERROR__ specifies whether errors should be generated by the
 context.  Possible values are `GLFW_TRUE` and `GLFW_FALSE`.  If enabled,
 situations that would have generated errors instead cause undefined behavior.
 
-@par
 The no error mode for OpenGL and OpenGL ES is described in detail by the
 [GL_KHR_no_error](https://www.opengl.org/registry/specs/KHR/no_error.txt)
 extension.
@@ -474,12 +457,10 @@ run on the discrete GPU.  This only affects systems with both integrated and
 discrete GPUs.  Possible values are `GLFW_TRUE` and `GLFW_FALSE`.  This is
 ignored on other platforms.
 
-@par
 Simpler programs and tools may want to enable this to save power, while games
 and other applications performing advanced rendering will want to leave it
 disabled.
 
-@par
 A bundled application that wishes to participate in Automatic Graphics Switching
 should also declare this in its `Info.plist` by setting the
 `NSSupportsAutomaticGraphicsSwitching` key to `true`.

examples/CMakeLists.txt

@@ -7,7 +7,8 @@ if (MATH_LIBRARY)
     link_libraries("${MATH_LIBRARY}")
 endif()
 
-if (MSVC)
+# Workaround for the MS CRT deprecating parts of the standard library
+if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
     add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 endif()
 
@@ -62,9 +63,13 @@ if (GLFW_USE_OSMESA)
 endif()
 
 if (MSVC)
-    # Tell MSVC to use main instead of WinMain for Windows subsystem executables
+    # Tell MSVC to use main instead of WinMain
     set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
                           LINK_FLAGS "/ENTRY:mainCRTStartup")
+elseif (CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
+    # Tell Clang using MS CRT to use main instead of WinMain
+    set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
+                          LINK_FLAGS "-Wl,/entry:mainCRTStartup")
 endif()
 
 if (APPLE)

examples/heightmap.c

@@ -292,12 +292,12 @@ static void generate_heightmap__circle(float* center_x, float* center_y,
 {
     float sign;
     /* random value for element in between [0-1.0] */
-    *center_x = (MAP_SIZE * rand()) / (1.0f * RAND_MAX);
+    *center_x = (MAP_SIZE * rand()) / (float) RAND_MAX;
-    *center_y = (MAP_SIZE * rand()) / (1.0f * RAND_MAX);
+    *center_y = (MAP_SIZE * rand()) / (float) RAND_MAX;
-    *size = (MAX_CIRCLE_SIZE * rand()) / (1.0f * RAND_MAX);
+    *size = (MAX_CIRCLE_SIZE * rand()) / (float) RAND_MAX;
-    sign = (1.0f * rand()) / (1.0f * RAND_MAX);
+    sign = (1.0f * rand()) / (float) RAND_MAX;
     sign = (sign < DISPLACEMENT_SIGN_LIMIT) ? -1.0f : 1.0f;
-    *displacement = (sign * (MAX_DISPLACEMENT * rand())) / (1.0f * RAND_MAX);
+    *displacement = (sign * (MAX_DISPLACEMENT * rand())) / (float) RAND_MAX;
 }
 
 /* Run the specified number of iterations of the generation process for the

include/GLFW/glfw3.h

@@ -276,23 +276,24 @@ extern "C" {
 
 /*! @name GLFW version macros
  *  @{ */
-/*! @brief The major version number of the GLFW library.
+/*! @brief The major version number of the GLFW header.
  *
- *  This is incremented when the API is changed in non-compatible ways.
+ *  The major version number of the GLFW header.  This is incremented when the
+ *  API is changed in non-compatible ways.
  *  @ingroup init
  */
 #define GLFW_VERSION_MAJOR          3
-/*! @brief The minor version number of the GLFW library.
+/*! @brief The minor version number of the GLFW header.
  *
- *  This is incremented when features are added to the API but it remains
+ *  The minor version number of the GLFW header.  This is incremented when
- *  backward-compatible.
+ *  features are added to the API but it remains backward-compatible.
  *  @ingroup init
  */
 #define GLFW_VERSION_MINOR          3
-/*! @brief The revision number of the GLFW library.
+/*! @brief The revision number of the GLFW header.
  *
- *  This is incremented when a bug fix release is made that does not contain any
+ *  The revision number of the GLFW header.  This is incremented when a bug fix
- *  API changes.
+ *  release is made that does not contain any API changes.
  *  @ingroup init
  */
 #define GLFW_VERSION_REVISION       5
@@ -2356,8 +2357,9 @@ GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun callback);
  *
  *  This function returns an array of all video modes supported by the specified
  *  monitor.  The returned array is sorted in ascending order, first by color
- *  bit depth (the sum of all channel depths) and then by resolution area (the
+ *  bit depth (the sum of all channel depths), then by resolution area (the
- *  product of width and height).
+ *  product of width and height), then resolution width and finally by refresh
+ *  rate.
  *
  *  @param[in] monitor The monitor to query.
  *  @param[out] count Where to store the number of video modes in the returned
@@ -5810,9 +5812,8 @@ GLFWAPI int glfwVulkanSupported(void);
  *  returned array, as it is an error to specify an extension more than once in
  *  the `VkInstanceCreateInfo` struct.
  *
- *  @remark @macos This function currently supports either the
+ *  @remark @macos GLFW currently supports both the `VK_MVK_macos_surface` and
- *  `VK_MVK_macos_surface` extension from MoltenVK or `VK_EXT_metal_surface`
+ *  the newer `VK_EXT_metal_surface` extensions.
- *  extension.
  *
  *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
  *  should not free it yourself.  It is guaranteed to be valid only until the
@@ -5895,7 +5896,7 @@ GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance, const char* p
  *  GLFW_API_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
  *
  *  @remark @macos This function currently always returns `GLFW_TRUE`, as the
- *  `VK_MVK_macos_surface` extension does not provide
+ *  `VK_MVK_macos_surface` and `VK_EXT_metal_surface` extensions do not provide
  *  a `vkGetPhysicalDevice*PresentationSupport` type function.
  *
  *  @thread_safety This function may be called from any thread.  For

include/GLFW/glfw3native.h

@@ -83,8 +83,8 @@ extern "C" {
 
 #if defined(GLFW_EXPOSE_NATIVE_WIN32) || defined(GLFW_EXPOSE_NATIVE_WGL)
  // This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
- // example to allow applications to correctly declare a GL_ARB_debug_output
+ // example to allow applications to correctly declare a GL_KHR_debug callback)
- // callback) but windows.h assumes no one will define APIENTRY before it does
+ // but windows.h assumes no one will define APIENTRY before it does
  #if defined(GLFW_APIENTRY_DEFINED)
   #undef APIENTRY
   #undef GLFW_APIENTRY_DEFINED
@@ -161,6 +161,14 @@ GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
  *  @return The `HWND` of the specified window, or `NULL` if an
  *  [error](@ref error_handling) occurred.
  *
+ *  @remark The `HDC` associated with the window can be queried with the
+ *  [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
+ *  function.
+ *  @code
+ *  HDC dc = GetDC(glfwGetWin32Window(window));
+ *  @endcode
+ *  This DC is private and does not need to be released.
+ *
  *  @thread_safety This function may be called from any thread.  Access is not
  *  synchronized.
  *
@@ -177,6 +185,14 @@ GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
  *  @return The `HGLRC` of the specified window, or `NULL` if an
  *  [error](@ref error_handling) occurred.
  *
+ *  @remark The `HDC` associated with the window can be queried with the
+ *  [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
+ *  function.
+ *  @code
+ *  HDC dc = GetDC(glfwGetWin32Window(window));
+ *  @endcode
+ *  This DC is private and does not need to be released.
+ *
  *  @thread_safety This function may be called from any thread.  Access is not
  *  synchronized.
  *

src/CMakeLists.txt

@@ -121,22 +121,18 @@ if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
 endif()
 
 # Enable a reasonable set of warnings
-if (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
+# NOTE: The order matters here, Clang-CL matches both MSVC and Clang
-    CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
+if (MSVC)
-    CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
-
-    if (CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
-        # Tell Clang-CL that this is a Clang flag
-        target_compile_options(glfw PRIVATE "/clang:-Wall")
-    else()
-        target_compile_options(glfw PRIVATE "-Wall")
-    endif()
-elseif (MSVC)
     target_compile_options(glfw PRIVATE "/W3")
+elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
+        CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
+        CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
+
+    target_compile_options(glfw PRIVATE "-Wall")
 endif()
 
-if (WIN32)
+if (_GLFW_WIN32)
-    target_compile_definitions(glfw PRIVATE _UNICODE)
+    target_compile_definitions(glfw PRIVATE UNICODE _UNICODE)
 endif()
 
 # HACK: When building on MinGW, WINVER and UNICODE need to be defined before
@@ -144,7 +140,7 @@ endif()
 # win32_platform.h.  We define them here until a saner solution can be found
 # NOTE: MinGW-w64 and Visual C++ do /not/ need this hack.
 if (MINGW)
-    target_compile_definitions(glfw PRIVATE UNICODE WINVER=0x0501)
+    target_compile_definitions(glfw PRIVATE WINVER=0x0501)
 endif()
 
 if (BUILD_SHARED_LIBS)
@@ -176,14 +172,14 @@ if (BUILD_SHARED_LIBS)
     endif()
 endif()
 
-if (MSVC)
+if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
     target_compile_definitions(glfw PRIVATE _CRT_SECURE_NO_WARNINGS)
 endif()
 
 if (GLFW_INSTALL)
     install(TARGETS glfw
             EXPORT glfwTargets
-            RUNTIME DESTINATION "bin"
+            RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
             ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
             LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
 endif()

src/cocoa_monitor.m

@@ -63,7 +63,7 @@ static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen)
                                      &it) != 0)
     {
         // This may happen if a desktop Mac is running headless
-        return NULL;
+        return _glfw_strdup("Display");
     }
 
     while ((service = IOIteratorNext(it)) != 0)
@@ -101,7 +101,7 @@ static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen)
     {
         _glfwInputError(GLFW_PLATFORM_ERROR,
                         "Cocoa: Failed to find service port for display");
-        return NULL;
+        return _glfw_strdup("Display");
     }
 
     CFDictionaryRef names =
@@ -114,7 +114,7 @@ static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen)
     {
         // This may happen if a desktop Mac is running headless
         CFRelease(info);
-        return NULL;
+        return _glfw_strdup("Display");
     }
 
     const CFIndex size =
@@ -356,7 +356,7 @@ void _glfwPollMonitorsNS(void)
         const CGSize size = CGDisplayScreenSize(displays[i]);
         char* name = getMonitorName(displays[i], screen);
         if (!name)
-            name = _glfw_strdup("Unknown");
+            continue;
 
         _GLFWmonitor* monitor = _glfwAllocMonitor(name, size.width, size.height);
         monitor->ns.displayID  = displays[i];

src/context.c

@@ -196,12 +196,6 @@ const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
             continue;
         }
 
-        if (desired->doublebuffer != current->doublebuffer)
-        {
-            // Double buffering is a hard constraint
-            continue;
-        }
-
         // Count number of missing buffers
         {
             missing = 0;
@@ -570,7 +564,9 @@ GLFWbool _glfwRefreshContextAttribs(_GLFWwindow* window,
         PFNGLCLEARPROC glClear = (PFNGLCLEARPROC)
             window->context.getProcAddress("glClear");
         glClear(GL_COLOR_BUFFER_BIT);
-        window->context.swapBuffers(window);
+
+        if (window->doublebuffer)
+            window->context.swapBuffers(window);
     }
 
     glfwMakeContextCurrent((GLFWwindow*) previous);

src/egl_context.c

@@ -173,7 +173,7 @@ static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
         u->stencilBits = getEGLConfigAttrib(n, EGL_STENCIL_SIZE);
 
         u->samples = getEGLConfigAttrib(n, EGL_SAMPLES);
-        u->doublebuffer = GLFW_TRUE;
+        u->doublebuffer = desired->doublebuffer;
 
         u->handle = (uintptr_t) n;
         usableCount++;
@@ -596,6 +596,9 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
             setAttrib(EGL_GL_COLORSPACE_KHR, EGL_GL_COLORSPACE_SRGB_KHR);
     }
 
+    if (!fbconfig->doublebuffer)
+        setAttrib(EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER);
+
     setAttrib(EGL_NONE, EGL_NONE);
 
     window->context.egl.surface =

src/egl_context.h

@@ -80,6 +80,8 @@ typedef struct wl_egl_window* EGLNativeWindowType;
 #define EGL_OPENGL_ES_API 0x30a0
 #define EGL_OPENGL_API 0x30a2
 #define EGL_NONE 0x3038
+#define EGL_RENDER_BUFFER 0x3086
+#define EGL_SINGLE_BUFFER 0x3085
 #define EGL_EXTENSIONS 0x3055
 #define EGL_CONTEXT_CLIENT_VERSION 0x3098
 #define EGL_NATIVE_VISUAL_ID 0x302e

src/glx_context.c

@@ -92,6 +92,9 @@ static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired,
                 continue;
         }
 
+        if (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER) != desired->doublebuffer)
+            continue;
+
         if (desired->transparent)
         {
             XVisualInfo* vi = glXGetVisualFromFBConfig(_glfw.x11.display, n);
@@ -119,8 +122,6 @@ static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired,
 
         if (getGLXFBConfigAttrib(n, GLX_STEREO))
             u->stereo = GLFW_TRUE;
-        if (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER))
-            u->doublebuffer = GLFW_TRUE;
 
         if (_glfw.glx.ARB_multisample)
             u->samples = getGLXFBConfigAttrib(n, GLX_SAMPLES);

src/input.c

@@ -430,7 +430,6 @@ _GLFWjoystick* _glfwAllocJoystick(const char* name,
 
     js = _glfw.joysticks + jid;
     js->present     = GLFW_TRUE;
-    js->name        = _glfw_strdup(name);
     js->axes        = calloc(axisCount, sizeof(float));
     js->buttons     = calloc(buttonCount + (size_t) hatCount * 4, 1);
     js->hats        = calloc(hatCount, 1);
@@ -438,6 +437,7 @@ _GLFWjoystick* _glfwAllocJoystick(const char* name,
     js->buttonCount = buttonCount;
     js->hatCount    = hatCount;
 
+    strncpy(js->name, name, sizeof(js->name) - 1);
     strncpy(js->guid, guid, sizeof(js->guid) - 1);
     js->mapping = findValidMapping(js);
 
@@ -448,7 +448,6 @@ _GLFWjoystick* _glfwAllocJoystick(const char* name,
 //
 void _glfwFreeJoystick(_GLFWjoystick* js)
 {
-    free(js->name);
     free(js->axes);
     free(js->buttons);
     free(js->hats);

src/internal.h

@@ -375,6 +375,7 @@ struct _GLFWwindow
     GLFWbool            focusOnShow;
     GLFWbool            shouldClose;
     void*               userPointer;
+    GLFWbool            doublebuffer;
     GLFWvidmode         videoMode;
     _GLFWmonitor*       monitor;
     _GLFWcursor*        cursor;
@@ -423,7 +424,7 @@ struct _GLFWwindow
 //
 struct _GLFWmonitor
 {
-    char*           name;
+    char            name[128];
     void*           userPointer;
 
     // Physical dimensions in millimeters.
@@ -484,7 +485,7 @@ struct _GLFWjoystick
     int             buttonCount;
     unsigned char*  hats;
     int             hatCount;
-    char*           name;
+    char            name[128];
     void*           userPointer;
     char            guid[33];
     _GLFWmapping*   mapping;

src/monitor.c

@@ -170,8 +170,7 @@ _GLFWmonitor* _glfwAllocMonitor(const char* name, int widthMM, int heightMM)
     monitor->widthMM = widthMM;
     monitor->heightMM = heightMM;
 
-    if (name)
+    strncpy(monitor->name, name, sizeof(monitor->name) - 1);
-        monitor->name = _glfw_strdup(name);
 
     return monitor;
 }
@@ -189,7 +188,6 @@ void _glfwFreeMonitor(_GLFWmonitor* monitor)
     _glfwFreeGammaArrays(&monitor->currentRamp);
 
     free(monitor->modes);
-    free(monitor->name);
     free(monitor);
 }
 

src/wgl_context.c

@@ -165,6 +165,9 @@ static int choosePixelFormat(_GLFWwindow* window,
             if (findAttribValue(WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB)
                 continue;
 
+            if (findAttribValue(WGL_DOUBLE_BUFFER_ARB) != fbconfig->doublebuffer)
+                continue;
+
             u->redBits = findAttribValue(WGL_RED_BITS_ARB);
             u->greenBits = findAttribValue(WGL_GREEN_BITS_ARB);
             u->blueBits = findAttribValue(WGL_BLUE_BITS_ARB);
@@ -182,8 +185,6 @@ static int choosePixelFormat(_GLFWwindow* window,
 
             if (findAttribValue(WGL_STEREO_ARB))
                 u->stereo = GLFW_TRUE;
-            if (findAttribValue(WGL_DOUBLE_BUFFER_ARB))
-                u->doublebuffer = GLFW_TRUE;
 
             if (_glfw.wgl.ARB_multisample)
                 u->samples = findAttribValue(WGL_SAMPLES_ARB);
@@ -239,6 +240,9 @@ static int choosePixelFormat(_GLFWwindow* window,
             if (pfd.iPixelType != PFD_TYPE_RGBA)
                 continue;
 
+            if (!!(pfd.dwFlags & PFD_DOUBLEBUFFER) != fbconfig->doublebuffer)
+                continue;
+
             u->redBits = pfd.cRedBits;
             u->greenBits = pfd.cGreenBits;
             u->blueBits = pfd.cBlueBits;
@@ -256,8 +260,6 @@ static int choosePixelFormat(_GLFWwindow* window,
 
             if (pfd.dwFlags & PFD_STEREO)
                 u->stereo = GLFW_TRUE;
-            if (pfd.dwFlags & PFD_DOUBLEBUFFER)
-                u->doublebuffer = GLFW_TRUE;
         }
 
         u->handle = pixelFormat;

src/win32_platform.h

@@ -39,8 +39,8 @@
 #endif
 
 // This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
-// example to allow applications to correctly declare a GL_ARB_debug_output
+// example to allow applications to correctly declare a GL_KHR_debug callback)
-// callback) but windows.h assumes no one will define APIENTRY before it does
+// but windows.h assumes no one will define APIENTRY before it does
 #undef APIENTRY
 
 // GLFW on Windows is Unicode only and does not work in MBCS mode

src/window.c

@@ -205,6 +205,8 @@ GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
     window->focusOnShow = wndconfig.focusOnShow;
     window->cursorMode  = GLFW_CURSOR_NORMAL;
 
+    window->doublebuffer = fbconfig.doublebuffer;
+
     window->minwidth    = GLFW_DONT_CARE;
     window->minheight   = GLFW_DONT_CARE;
     window->maxwidth    = GLFW_DONT_CARE;

src/wl_monitor.c

@@ -47,15 +47,13 @@ static void outputHandleGeometry(void* data,
                                  int32_t transform)
 {
     struct _GLFWmonitor *monitor = data;
-    char name[1024];
 
     monitor->wl.x = x;
     monitor->wl.y = y;
     monitor->widthMM = physicalWidth;
     monitor->heightMM = physicalHeight;
 
-    snprintf(name, sizeof(name), "%s %s", make, model);
+    snprintf(monitor->name, sizeof(monitor->name), "%s %s", make, model);
-    monitor->name = _glfw_strdup(name);
 }
 
 static void outputHandleMode(void* data,
@@ -133,7 +131,7 @@ void _glfwAddOutputWayland(uint32_t name, uint32_t version)
     }
 
     // The actual name of this output will be set in the geometry handler.
-    monitor = _glfwAllocMonitor(NULL, 0, 0);
+    monitor = _glfwAllocMonitor("", 0, 0);
 
     output = wl_registry_bind(_glfw.wl.registry,
                               name,

tests/CMakeLists.txt

@@ -7,7 +7,8 @@ if (MATH_LIBRARY)
     link_libraries("${MATH_LIBRARY}")
 endif()
 
-if (MSVC)
+# Workaround for the MS CRT deprecating parts of the standard library
+if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
     add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 endif()
 
@@ -69,9 +70,13 @@ set_target_properties(${GUI_ONLY_BINARIES} ${CONSOLE_BINARIES} PROPERTIES
                       FOLDER "GLFW3/Tests")
 
 if (MSVC)
-    # Tell MSVC to use main instead of WinMain for Windows subsystem executables
+    # Tell MSVC to use main instead of WinMain
     set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
                           LINK_FLAGS "/ENTRY:mainCRTStartup")
+elseif (CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
+    # Tell Clang using MS CRT to use main instead of WinMain
+    set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
+                          LINK_FLAGS "-Wl,/entry:mainCRTStartup")
 endif()
 
 if (APPLE)