media-libs/glfw: Add minecraft patches from ninja-

Also adds an additional patch to actually link against libdecoration if
requested.

Upstream pull request:
glfw/glfw#1725

media-libs/glfw/Manifest

@@ -0,0 +1,2 @@
+AUX glfw-9999-libdecoration-cmake.patch 987 BLAKE2B 3f78490ee88fd60da998fddf8227ce2253df9528a074e8cb24a764a1e280c620be0d6fb796e3e1f4fbf5e3422ddc991f8bd380a195764c0f0b55049bf307bb43 SHA512 cdb22da3534494c17cebbad40faa302d101c8088d26598865a7bfa894a8853acb839e061037bc575f98d4efaec654e5f8fcca8911852c6fac2fb25b31d23f6bb
+EBUILD glfw-9999.ebuild 1203 BLAKE2B be0f96aa4dfde14ebc247d42fd4856e4f148cec139d0908e36da63f4c58cf3c72ec19e5291ba936ef770d0413015c8664f9291160773c9aaa9180a26beb80c96 SHA512 622bcc563f481b38f1ffdf30b5d7033fd6c8d9928600a30ca6454953e264c4e8ad629070148bfa33e1677f586e6b8617cd96f07dbb8cb87e026edc2e02a396e1

media-libs/glfw/files/glfw-9999-libdecoration-cmake.patch

@@ -0,0 +1,30 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 3f5ebeb2..eb7687cd 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -237,6 +237,14 @@ if (_GLFW_WAYLAND)
+             list(APPEND glfw_LIBRARIES "${EPOLLSHIM_LIBRARIES}")
+         endif()
+     endif()
++
++    if (GLFW_USE_LIBDECORATION)
++        set(WITH_DECORATION 1)
++        pkg_check_modules(Decoration REQUIRED
++            decoration)
++        list(APPEND glfw_INCLUDE_DIRS "${Decoration_INCLUDE_DIRS}")
++        list(APPEND glfw_LIBRARIES "${Decoration_LIBRARIES}")
++    endif()
+ endif()
+
+ #--------------------------------------------------------------------
+diff --git a/src/glfw_config.h.in b/src/glfw_config.h.in
+index f4876da2..3d848111 100644
+--- a/src/glfw_config.h.in
++++ b/src/glfw_config.h.in
+@@ -56,3 +56,6 @@
+ // Define this to 1 if the libc supports memfd_create()
+ #cmakedefine HAVE_MEMFD_CREATE
+
++// Define this to 1 if using libdecoration to provide Wayland decoration support
++#cmakedefine WITH_DECORATION
++

media-libs/glfw/glfw-9999.ebuild

@@ -0,0 +1,59 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake git-r3
+
+DESCRIPTION="The Portable OpenGL FrameWork"
+HOMEPAGE="https://www.glfw.org/"
+EGIT_REPO_URI="https://github.com/ninja-/glfw.git"
+EGIT_BRANCH="wayland_fixes"
+
+LICENSE="ZLIB"
+SLOT="0"
+IUSE="wayland libdecoration"
+
+RDEPEND="
+	x11-libs/libxkbcommon
+	!wayland? (
+		virtual/opengl
+		x11-libs/libX11
+		x11-libs/libXcursor
+		x11-libs/libXinerama
+		x11-libs/libXrandr
+		x11-libs/libXxf86vm
+	)
+	wayland? (
+		dev-libs/wayland
+		dev-util/meson
+		libdecoration? ( gui-libs/libdecoration )
+		media-libs/mesa[egl,wayland]
+	)
+"
+DEPEND="
+	${RDEPEND}
+	!wayland? ( x11-libs/libXi )
+	wayland? ( dev-libs/wayland-protocols )
+"
+BDEPEND="
+	wayland? ( kde-frameworks/extra-cmake-modules )
+"
+
+PATCHES=( "${FILESDIR}/${PN}-9999-libdecoration-cmake.patch" )
+
+pkg_pretend() {
+	if use libdecoration && ! use wayland; then
+		ewarn "libdecoration USE flag has no effect without wayland"
+	fi
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DGLFW_BUILD_EXAMPLES=no
+		-DGLFW_USE_WAYLAND="$(usex wayland)"
+		-DGLFW_USE_LIBDECORATION="$(usex libdecoration)"
+		-DBUILD_SHARED_LIBS=1
+	)
+	cmake_src_configure
+}