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@ -164,6 +164,7 @@ information on what to include when reporting a bug.
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- Added `GLFW_BUILD_X11` CMake option for enabling X11 support (#1958)
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- Added `GLFW_BUILD_X11` CMake option for enabling X11 support (#1958)
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- Added `GLFW_LIBRARY_TYPE` CMake variable for overriding the library type
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- Added `GLFW_LIBRARY_TYPE` CMake variable for overriding the library type
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(#279,#1307,#1497,#1574,#1928)
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(#279,#1307,#1497,#1574,#1928)
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- Added support for `XDG_SESSION_TYPE` environment variable
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- Added `GLFW_PKG_CONFIG_REQUIRES_PRIVATE` and `GLFW_PKG_CONFIG_LIBS_PRIVATE` CMake
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- Added `GLFW_PKG_CONFIG_REQUIRES_PRIVATE` and `GLFW_PKG_CONFIG_LIBS_PRIVATE` CMake
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variables exposing pkg-config dependencies (#1307)
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variables exposing pkg-config dependencies (#1307)
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- Made joystick subsystem initialize at first use (#1284,#1646)
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- Made joystick subsystem initialize at first use (#1284,#1646)
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@ -2199,6 +2199,13 @@ typedef struct GLFWallocator
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* application locale according to the current environment if that category is
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* application locale according to the current environment if that category is
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* still "C". This is because the "C" locale breaks Unicode text input.
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* still "C". This is because the "C" locale breaks Unicode text input.
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*
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*
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* @remark __Wayland, X11:__ If the library was compiled with support for both
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* Wayland and X11, and the @ref GLFW_PLATFORM init hint is set to
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* `GLFW_ANY_PLATFORM`, the `XDG_SESSION_TYPE` environment variable affects
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* which platform is picked. If the environment variable is not set, or is set
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* to something other than `wayland` or `x11`, the regular detection mechanism
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* will be used instead.
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*
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* @thread_safety This function must only be called from the main thread.
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* @thread_safety This function must only be called from the main thread.
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*
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*
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* @sa @ref intro_init
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* @sa @ref intro_init
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@ -27,6 +27,9 @@
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#include "internal.h"
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#include "internal.h"
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#include <string.h>
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#include <stdlib.h>
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// These construct a string literal from individual numeric constants
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// These construct a string literal from individual numeric constants
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#define _GLFW_CONCAT_VERSION(m, n, r) #m "." #n "." #r
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#define _GLFW_CONCAT_VERSION(m, n, r) #m "." #n "." #r
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#define _GLFW_MAKE_VERSION(m, n, r) _GLFW_CONCAT_VERSION(m, n, r)
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#define _GLFW_MAKE_VERSION(m, n, r) _GLFW_CONCAT_VERSION(m, n, r)
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@ -80,6 +83,22 @@ GLFWbool _glfwSelectPlatform(int desiredID, _GLFWplatform* platform)
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return GLFW_FALSE;
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return GLFW_FALSE;
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}
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}
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#if defined(_GLFW_WAYLAND) && defined(_GLFW_X11)
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if (desiredID == GLFW_ANY_PLATFORM)
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{
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const char* const session = getenv("XDG_SESSION_TYPE");
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if (session)
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{
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// Only follow XDG_SESSION_TYPE if it is set correctly and the
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// environment looks plausble; otherwise fall back to detection
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if (strcmp(session, "wayland") == 0 && getenv("WAYLAND_DISPLAY"))
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desiredID = GLFW_PLATFORM_WAYLAND;
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else if (strcmp(session, "x11") == 0 && getenv("DISPLAY"))
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desiredID = GLFW_PLATFORM_X11;
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}
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}
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#endif
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if (desiredID == GLFW_ANY_PLATFORM)
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if (desiredID == GLFW_ANY_PLATFORM)
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{
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{
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// If there is exactly one platform available for auto-selection, let it emit the
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// If there is exactly one platform available for auto-selection, let it emit the
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