Fix compiling stages for Wayland (#38)

build/premake5.lua

@@ -103,19 +103,13 @@ function platform_defines()
     filter {"system:macosx"}
         disablewarnings {"deprecated-declarations"}
 
-    filter {"system:linux"}
+    filter {"system:linux", "options:wayland=off"}
         defines {"_GLFW_X11"}
-        defines {"_GNU_SOURCE"}
--- This is necessary, otherwise compilation will fail since
--- there is no CLOCK_MONOTOMIC. raylib claims to have a workaround
--- to compile under c99 without -D_GNU_SOURCE, but it didn't seem
--- to work. raylib's Makefile also adds this flag, probably why it went
--- unnoticed for so long.
--- It compiles under c11 without -D_GNU_SOURCE, because c11 requires
--- to have CLOCK_MONOTOMIC
--- See: https://github.com/raysan5/raylib/issues/2729
 
-    filter{}
+    filter {"system:linux", "options:wayland=on"}
+        defines {"_GLFW_WAYLAND"}
+
+    filter {}
 end
 
 -- if you don't want to download raylib, then set this to false, and set the raylib dir to where you want raylib to be pulled from, must be full sources.
@@ -231,7 +225,13 @@ if (downloadRaylib) then
             libdirs {"../bin/%{cfg.buildcfg}"}
 
         filter "system:linux"
-            links {"pthread", "m", "dl", "rt", "X11"}
+            links {"pthread", "m", "dl", "rt"}
+
+        filter {"system:linux", "options:wayland=off"}
+            links {"X11"}
+
+        filter {"system:linux", "options:wayland=on"}
+            links {"wayland-client", "wayland-cursor", "wayland-egl", "xkbcommon"}
 
         filter "system:macosx"
             links {"OpenGL.framework", "Cocoa.framework", "IOKit.framework", "CoreFoundation.framework", "CoreAudio.framework", "CoreVideo.framework", "AudioToolbox.framework"}
@@ -249,9 +249,36 @@ if (downloadRaylib) then
         language "C"
         targetdir "../bin/%{cfg.buildcfg}"
 
+
         filter {"options:wayland=on"}
             defines {"GLFW_LINUX_ENABLE_WAYLAND=TRUE" }
 
+        filter {"options:wayland=on", "system:linux"}
+            prebuildcommands {
+                "@echo Generating Wayland protocols...",
+                -- Core Wayland & Shell
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/wayland.xml ../" .. raylib_dir .. "/src/wayland-client-protocol.h",
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/xdg-shell.xml ../" .. raylib_dir .. "/src/xdg-shell-client-protocol.h",
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/xdg-decoration-unstable-v1.xml ../" .. raylib_dir .. "/src/xdg-decoration-unstable-v1-client-protocol.h",
+
+                -- Viewporter
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/viewporter.xml ../" .. raylib_dir .. "/src/viewporter-client-protocol.h",
+
+                -- Relative Pointer
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/relative-pointer-unstable-v1.xml ../" .. raylib_dir .. "/src/relative-pointer-unstable-v1-client-protocol.h",
+                -- Pointer Constraints
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/pointer-constraints-unstable-v1.xml ../" .. raylib_dir .. "/src/pointer-constraints-unstable-v1-client-protocol.h",
+
+                -- Fractional Scale
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/fractional-scale-v1.xml ../" .. raylib_dir .. "/src/fractional-scale-v1-client-protocol.h",
+
+                -- XDG Activation
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/xdg-activation-v1.xml ../" .. raylib_dir .. "/src/xdg-activation-v1-client-protocol.h",
+                -- Idle Inhibit
+                "@wayland-scanner client-header ../" .. raylib_dir .. "/src/external/glfw/deps/wayland/idle-inhibit-unstable-v1.xml ../" .. raylib_dir .. "/src/idle-inhibit-unstable-v1-client-protocol.h",
+            }
+        filter {}
+
         filter "action:vs*"
             defines{"_WINSOCK_DEPRECATED_NO_WARNINGS", "_CRT_SECURE_NO_WARNINGS"}
             characterset ("Unicode")