Meta: Patch angle vcpkg to build on FreeBSD

Author: https://github.com/cqundefine
Commit: 1a42fc4fcd
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5244
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/clausecker
Reviewed-by: https://github.com/trflynn89

Meta/CMake/vcpkg/overlay-ports/angle/cmake-buildsystem/CMakeLists.txt

@@ -44,7 +44,7 @@ add_compile_options("$<$<CONFIG:DEBUG>:-DANGLE_ENABLE_DEBUG_ANNOTATIONS>")
 if(WIN32)
     add_definitions(-DANGLE_IS_WIN)
 endif()
-if(LINUX)
+if(LINUX OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
     add_definitions(-DANGLE_IS_LINUX)
 endif()
 if(ANGLE_IS_64_BIT_CPU)
@@ -258,6 +258,9 @@ if (USE_ANGLE_EGL OR ENABLE_WEBGL)
     target_compile_definitions(ANGLE PUBLIC ${ANGLE_DEFINITIONS})
     target_link_libraries(ANGLE PRIVATE ZLIB::ZLIB ${CMAKE_DL_LIBS})
 
+    find_package(Threads REQUIRED)
+    target_link_libraries(ANGLE PRIVATE Threads::Threads)
+
     target_compile_definitions(ANGLEFramework INTERFACE ${gl_prototypes})
 
     add_library(GLESv2 ${GLESv2_LIBRARY_TYPE}

Meta/CMake/vcpkg/overlay-ports/angle/cmake-buildsystem/PlatformLinux.cmake

@@ -1,4 +1,4 @@
-list(APPEND ANGLE_DEFINITIONS ANGLE_PLATFORM_LINUX USE_SYSTEM_EGL)
+list(APPEND ANGLE_DEFINITIONS USE_SYSTEM_EGL)
 include(linux.cmake)
 
 if (USE_OPENGL)

Meta/CMake/vcpkg/overlay-ports/angle/fix-freebsd.patch

@@ -0,0 +1,56 @@
+diff --git a/src/common/platform.h b/src/common/platform.h
+index 44f485f1ce..fbbbfa7919 100644
+--- a/src/common/platform.h
++++ b/src/common/platform.h
+@@ -23,7 +23,10 @@
+ #elif defined(__linux__) || defined(EMSCRIPTEN)
+ #    define ANGLE_PLATFORM_LINUX 1
+ #    define ANGLE_PLATFORM_POSIX 1
+-#elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) ||              \
++#elif defined(__FreeBSD__)
++#    define ANGLE_PLATFORM_FREEBSD 1
++#    define ANGLE_PLATFORM_POSIX 1
++#elif defined(__OpenBSD__) || defined(__NetBSD__) || \
+     defined(__DragonFly__) || defined(__sun) || defined(__GLIBC__) || defined(__GNU__) || \
+     defined(__QNX__) || defined(__Fuchsia__) || defined(__HAIKU__)
+ #    define ANGLE_PLATFORM_POSIX 1
+diff --git a/src/libANGLE/Display.cpp b/src/libANGLE/Display.cpp
+index d261bf1e5a..44c1d91bc3 100644
+--- a/src/libANGLE/Display.cpp
++++ b/src/libANGLE/Display.cpp
+@@ -58,7 +58,7 @@
+ #        include "libANGLE/renderer/gl/wgl/DisplayWGL.h"
+ #    elif ANGLE_ENABLE_CGL
+ #        include "libANGLE/renderer/gl/cgl/DisplayCGL.h"
+-#    elif defined(ANGLE_PLATFORM_LINUX)
++#    elif defined(ANGLE_PLATFORM_LINUX) || defined(ANGLE_PLATFORM_FREEBSD)
+ #        include "libANGLE/renderer/gl/egl/DisplayEGL.h"
+ #        if defined(ANGLE_USE_X11)
+ #            include "libANGLE/renderer/gl/glx/DisplayGLX_api.h"
+@@ -422,7 +422,7 @@ rx::DisplayImpl *CreateDisplayFromAttribs(EGLAttrib displayType,
+             impl = new rx::DisplayCGL(state);
+             break;
+ 
+-#    elif defined(ANGLE_PLATFORM_LINUX)
++#    elif defined(ANGLE_PLATFORM_LINUX) || defined(ANGLE_PLATFORM_FREEBSD)
+ #        if defined(ANGLE_USE_GBM)
+             if (platformType == 0)
+             {
+@@ -468,7 +468,7 @@ rx::DisplayImpl *CreateDisplayFromAttribs(EGLAttrib displayType,
+ #if defined(ANGLE_ENABLE_OPENGL)
+ #    if defined(ANGLE_PLATFORM_WINDOWS)
+             impl = new rx::DisplayWGL(state);
+-#    elif defined(ANGLE_PLATFORM_LINUX)
++#    elif defined(ANGLE_PLATFORM_LINUX) || defined(ANGLE_PLATFORM_FREEBSD)
+ #        if defined(ANGLE_USE_GBM)
+             if (platformType == 0)
+             {
+@@ -519,7 +519,7 @@ rx::DisplayImpl *CreateDisplayFromAttribs(EGLAttrib displayType,
+                 impl = rx::CreateVulkanWin32Display(state);
+             }
+             break;
+-#    elif defined(ANGLE_PLATFORM_LINUX)
++#    elif defined(ANGLE_PLATFORM_LINUX) || defined(ANGLE_PLATFORM_FREEBSD)
+ #        if defined(ANGLE_USE_GBM)
+             if (platformType == EGL_PLATFORM_GBM_KHR && rx::IsVulkanGbmDisplayAvailable())
+             {

Meta/CMake/vcpkg/overlay-ports/angle/portfile.cmake

@@ -49,6 +49,7 @@ vcpkg_from_github(
     # On update check headers against opengl-registry
     PATCHES
         001-fix-builder-error.patch
+        fix-freebsd.patch
 )
 
 # Generate angle_commit.h

vcpkg.json

@@ -10,7 +10,7 @@
     },
     {
       "name": "angle",
-      "platform": "linux | windows | android"
+      "platform": "linux | windows | android | freebsd"
     },
     {
       "name": "curl",