vcpkg/ports/libvpx/0003-add-uwp-and-v142-support.patch

diff --git a/build/make/configure.sh b/build/make/configure.sh
index d4f19cd97..fb51368b1 100644
--- a/build/make/configure.sh
+++ b/build/make/configure.sh
@@ -1016,7 +1016,7 @@ EOF
           # A number of ARM-based Windows platforms are constrained by their
           # respective SDKs' limitations. Fortunately, these are all 32-bit ABIs
           # and so can be selected as 'win32'.
-          if [ ${tgt_os} = "win32" ]; then
+          if [ ${tgt_os} = "win32" ] || [ ${tgt_isa} = "armv7" ]; then
             asm_conversion_cmd="${source_path_mk}/build/make/ads2armasm_ms.pl"
             AS_SFX=.S
             msvs_arch_dir=arm-msvs
@@ -1250,6 +1250,9 @@ EOF
         android)
           soft_enable realtime_only
           ;;
+        uwp)
+          enabled gcc && add_cflags -fno-common
+          ;;
         win*)
           enabled gcc && add_cflags -fno-common
           ;;
@@ -1368,6 +1371,16 @@ EOF
       fi
       AS_SFX=.asm
       case  ${tgt_os} in
+        uwp)
+          if [ {$tgt_isa} = "x86" ] || [ {$tgt_isa} = "armv7" ]; then
+            add_asflags -f win32
+          else
+            add_asflags -f win64
+          fi
+          enabled debug && [ "${AS}" = yasm ] && add_asflags -g cv8
+          enabled debug && [ "${AS}" = nasm ] && add_asflags -gcv8
+          EXE_SFX=.exe
+          ;;
         win32)
           add_asflags -f win32
           enabled debug && [ "${AS}" = yasm ] && add_asflags -g cv8
@@ -1488,6 +1501,8 @@ EOF
   # Almost every platform uses pthreads.
   if enabled multithread; then
     case ${toolchain} in
+      *-uwp-vs*)
+        ;;
       *-win*-vs*)
         ;;
       *-android-gcc)
diff --git a/build/make/gen_msvs_vcxproj.sh b/build/make/gen_msvs_vcxproj.sh
index 6f91ad478..916851662 100755
--- a/build/make/gen_msvs_vcxproj.sh
+++ b/build/make/gen_msvs_vcxproj.sh
@@ -296,7 +296,22 @@ generate_vcxproj() {
         tag_content ProjectGuid "{${guid}}"
         tag_content RootNamespace ${name}
         tag_content Keyword ManagedCProj
-        if [ $vs_ver -ge 12 ] && [ "${platforms[0]}" = "ARM" ]; then
+        if [ $vs_ver -ge 16 ]; then
+            if [[ $target =~ [^-]*-uwp-.* ]]; then
+                # Universal Windows Applications
+                tag_content AppContainerApplication true
+                tag_content ApplicationType "Windows Store"
+                tag_content ApplicationTypeRevision 10.0
+            fi
+            if [[ $target =~ [^-]*-uwp-.* ]] || [ "${platforms[0]}" = "ARM" ] || [ "${platforms[0]}" = "ARM64" ]; then
+                # Default to the latest Windows 10 SDK
+                tag_content WindowsTargetPlatformVersion 10.0
+            else
+                # Minimum supported version of Windows for the desktop
+                tag_content WindowsTargetPlatformVersion 8.1
+            fi
+            tag_content MinimumVisualStudioVersion 16.0
+        elif [ $vs_ver -ge 12 ] && [ "${platforms[0]}" = "ARM" ]; then
             tag_content AppContainerApplication true
             # The application type can be one of "Windows Store",
             # "Windows Phone" or "Windows Phone Silverlight". The
@@ -391,7 +406,7 @@ generate_vcxproj() {
                 Condition="'\$(Configuration)|\$(Platform)'=='$config|$plat'"
             if [ "$name" == "vpx" ]; then
                 hostplat=$plat
-                if [ "$hostplat" == "ARM" ]; then
+                if [ "$hostplat" == "ARM" ] && [ $vs_ver -le 15 ]; then
                     hostplat=Win32
                 fi
             fi
diff --git a/configure b/configure
index da631a45e..da93474e5 100755
--- a/configure
+++ b/configure
@@ -101,16 +101,20 @@ all_platforms="${all_platforms} arm64-android-gcc"
 all_platforms="${all_platforms} arm64-darwin-gcc"
 all_platforms="${all_platforms} arm64-darwin20-gcc"
 all_platforms="${all_platforms} arm64-linux-gcc"
+all_platforms="${all_platforms} arm64-uwp-vs16"
 all_platforms="${all_platforms} arm64-win64-gcc"
 all_platforms="${all_platforms} arm64-win64-vs15"
+all_platforms="${all_platforms} arm64-win64-vs16"
 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
+all_platforms="${all_platforms} armv7-uwp-vs16"
 all_platforms="${all_platforms} armv7-win32-gcc"
 all_platforms="${all_platforms} armv7-win32-vs14"
 all_platforms="${all_platforms} armv7-win32-vs15"
+all_platforms="${all_platforms} armv7-win32-vs16"
 all_platforms="${all_platforms} armv7s-darwin-gcc"
 all_platforms="${all_platforms} armv8-linux-gcc"
 all_platforms="${all_platforms} mips32-linux-gcc"
@@ -135,6 +139,7 @@ all_platforms="${all_platforms} x86-linux-gcc"
 all_platforms="${all_platforms} x86-linux-icc"
 all_platforms="${all_platforms} x86-os2-gcc"
 all_platforms="${all_platforms} x86-solaris-gcc"
+all_platforms="${all_platforms} x86-uwp-vs16"
 all_platforms="${all_platforms} x86-win32-gcc"
 all_platforms="${all_platforms} x86-win32-vs14"
 all_platforms="${all_platforms} x86-win32-vs15"
@@ -156,6 +161,7 @@ all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 all_platforms="${all_platforms} x86_64-linux-gcc"
 all_platforms="${all_platforms} x86_64-linux-icc"
 all_platforms="${all_platforms} x86_64-solaris-gcc"
+all_platforms="${all_platforms} x86_64-uwp-vs16"
 all_platforms="${all_platforms} x86_64-win64-gcc"
 all_platforms="${all_platforms} x86_64-win64-vs14"
 all_platforms="${all_platforms} x86_64-win64-vs15"
@@ -476,11 +482,10 @@ process_targets() {
     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
-    case "${tgt_os}" in
-    win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
-          DIST_DIR="${DIST_DIR}-${tgt_cc}"
-          ;;
-    esac
+    if [[ ${tgt_os} =~ win.* ]] || [ "${tgt_os}" = "uwp" ]; then
+        enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
+        DIST_DIR="${DIST_DIR}-${tgt_cc}"
+    fi
     if [ -f "${source_path}/build/make/version.sh" ]; then
         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
         DIST_DIR="${DIST_DIR}-${ver}"
@@ -569,6 +574,10 @@ process_detect() {
 
             # Specialize windows and POSIX environments.
             case $toolchain in
+                *-uwp-*)
+                    # Don't check for any headers in UWP builds.
+                    false
+                ;;
                 *-win*-*)
                     # Don't check for any headers in Windows builds.
                     false