From 671760c474fdcf736d60449ecbbd5583d0e819df Mon Sep 17 00:00:00 2001
From: Eric Kilmer <eric.d.kilmer@gmail.com>
Date: Tue, 2 Feb 2021 13:52:27 -0500
Subject: [PATCH] vcpkg: Support Windows and arm64 (#478)

* Support arm64 default vcpkg triplet

* Add default Windows release triplet support
---
 cmake/vcpkg_helper.cmake | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/cmake/vcpkg_helper.cmake b/cmake/vcpkg_helper.cmake
index 765c91538..7c979e2ed 100644
--- a/cmake/vcpkg_helper.cmake
+++ b/cmake/vcpkg_helper.cmake
@@ -19,10 +19,24 @@ if (NOT USE_SYSTEM_DEPENDENCIES)
 
   # Set default triplet to Release VCPKG build unless we can't find it
   if (NOT DEFINED VCPKG_TARGET_TRIPLET)
+    set(_project_arch "x64")
+    if (UNIX)
+      execute_process(COMMAND uname -m
+                      OUTPUT_VARIABLE _SYSTEM_ARCH
+                      OUTPUT_STRIP_TRAILING_WHITESPACE)
+    else()
+      message(WARNING "No detection of architecture for this platform. Assuming x64")
+    endif()
+    if (_SYSTEM_ARCH MATCHES "^[Aa][Aa][Rr][Cc][Hh]64$")
+      set(_project_arch "arm64")
+    endif()
+
     if (APPLE)
-      set(_project_vcpkg_triplet "x64-osx-rel")
+      set(_project_vcpkg_triplet "${_project_arch}-osx-rel")
     elseif(UNIX)
-      set(_project_vcpkg_triplet "x64-linux-rel")
+      set(_project_vcpkg_triplet "${_project_arch}-linux-rel")
+    elseif(WIN32)
+      set(_project_vcpkg_triplet "${_project_arch}-windows-static-md-rel")
     else()
       message(FATAL_ERROR "Could not detect default release triplet")
     endif()