From 9ef6885743cd68370743b432c340d849466845b5 Mon Sep 17 00:00:00 2001
From: Cameron Cawley <ccawley2011@gmail.com>
Date: Sun, 8 May 2022 15:53:43 +0100
Subject: [PATCH] Fix MSVC ARM32 builds

---
 .github/workflows/msvc.yml |  1 +
 CMakeLists.txt             | 11 +++++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/msvc.yml b/.github/workflows/msvc.yml
index df9c8fe75..39e23e4c0 100644
--- a/.github/workflows/msvc.yml
+++ b/.github/workflows/msvc.yml
@@ -17,6 +17,7 @@ jobs:
         - { name: Windows static VCRT (x86), flags: -A Win32 -DSDL_FORCE_STATIC_VCRT=ON }
         - { name: Windows (clang-cl x64), flags: -T ClangCL -A x64 }
         - { name: Windows (clang-cl x86), flags: -T ClangCL -A Win32 }
+        - { name: Windows (ARM),          flags: -A ARM }
         - { name: Windows (ARM64),        flags: -A ARM64 }
         - { name: UWP (x64),              flags: -A x64 -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION="10.0" -DSDL_TEST=OFF, project: VisualC-WinRT/SDL-UWP.sln, projectflags: '/p:Platform=x64 /p:WindowsTargetPlatformVersion=10.0.17763.0' }
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a4a736f94..99a538598 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1550,7 +1550,7 @@ elseif(WINDOWS)
   if(MSVC AND NOT SDL_LIBC)
     # Prevent codegen that would use the VC runtime libraries.
     set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/GS-")
-    if(NOT ARCH_64)
+    if(NOT ARCH_64 AND NOT CMAKE_GENERATOR_PLATFORM STREQUAL "ARM")
       set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/arch:SSE")
     endif()
   endif()
@@ -1582,7 +1582,7 @@ elseif(WINDOWS)
     check_include_file(ddraw.h HAVE_DDRAW_H)
     check_include_file(dsound.h HAVE_DSOUND_H)
     check_include_file(dinput.h HAVE_DINPUT_H)
-    if(WINDOWS_STORE OR VCPKG_TARGET_TRIPLET MATCHES "arm-windows")
+    if(WINDOWS_STORE OR CMAKE_GENERATOR_PLATFORM STREQUAL "ARM")
       set(HAVE_DINPUT_H 0)
     endif()
     check_include_file(dxgi.h HAVE_DXGI_H)
@@ -2890,6 +2890,9 @@ if(NOT WINDOWS_STORE AND NOT SDL2_DISABLE_SDL2MAIN)
   add_library(SDL2::SDL2main ALIAS SDL2main)
   target_include_directories(SDL2main BEFORE PRIVATE "${SDL2_BINARY_DIR}/include")
   target_include_directories(SDL2main PUBLIC "$<BUILD_INTERFACE:${SDL2_SOURCE_DIR}/include>" $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}> $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/SDL2>)
+  if (WIN32)
+    target_link_libraries(SDL2main PRIVATE shell32)
+  endif()
   if (NOT ANDROID)
     set_target_properties(SDL2main PROPERTIES DEBUG_POSTFIX "${SDL_CMAKE_DEBUG_POSTFIX}")
   endif()
@@ -2930,7 +2933,7 @@ if(SDL_SHARED)
       OUTPUT_NAME "SDL2")
   endif()
   # Note: The clang toolset for Visual Studio does not support /NODEFAULTLIB.
-  if(MSVC AND NOT SDL_LIBC AND NOT MSVC_CLANG)
+  if(MSVC AND NOT SDL_LIBC AND NOT MSVC_CLANG AND NOT CMAKE_GENERATOR_PLATFORM STREQUAL "ARM")
     # Don't try to link with the default set of libraries.
     if(NOT WINDOWS_STORE)
       set_target_properties(SDL2 PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
@@ -2962,7 +2965,7 @@ if(SDL_STATIC)
   endif()
   set_target_properties(SDL2-static PROPERTIES POSITION_INDEPENDENT_CODE ${SDL_STATIC_PIC})
   # Note: The clang toolset for Visual Studio does not support /NODEFAULTLIB.
-  if(MSVC AND NOT SDL_LIBC AND NOT MSVC_CLANG)
+  if(MSVC AND NOT SDL_LIBC AND NOT MSVC_CLANG AND NOT CMAKE_GENERATOR_PLATFORM STREQUAL "ARM")
     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
     set_target_properties(SDL2-static PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")