From f82483d343c6452c62ec89a48d22a3a7e565373d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D9=85=D9=87=D8=AF=D9=8A=20=D8=B4=D9=8A=D9=86=D9=88=D9=86?=
 =?UTF-8?q?=20=28Mehdi=20Chinoune=29?=
 <79349457+MehdiChinoune@users.noreply.github.com>
Date: Sun, 15 Dec 2024 06:13:11 +0100
Subject: [PATCH] Support building assembly files for mingw-w64 on arm64 with
 CMake.

---
 CMakeLists.txt | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3ad7926..230d434e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -89,18 +89,22 @@ if(MSVC)
   else()
     set(_default_asm masm)
   endif()
+elseif(BOOST_CONTEXT_ARCHITECTURE STREQUAL arm64 AND MINGW)
+  set(_default_asm armclang)
 else()
   set(_default_asm gas)
 endif()
 
-set(BOOST_CONTEXT_ASSEMBLER "${_default_asm}" CACHE STRING "Boost.Context assembler (masm, gas, armasm)")
-set_property(CACHE BOOST_CONTEXT_ASSEMBLER PROPERTY STRINGS masm gas armasm)
+set(BOOST_CONTEXT_ASSEMBLER "${_default_asm}" CACHE STRING "Boost.Context assembler (masm, gas, armasm, armclang)")
+set_property(CACHE BOOST_CONTEXT_ASSEMBLER PROPERTY STRINGS masm gas armasm armclang)
 
 unset(_default_asm)
 
 ## Assembler source suffix
 
-if(BOOST_CONTEXT_BINARY_FORMAT STREQUAL pe)
+if(BOOST_CONTEXT_ASSEMBLER STREQUAL armclang)
+  set(_default_ext .S)
+elseif(BOOST_CONTEXT_BINARY_FORMAT STREQUAL pe)
   set(_default_ext .asm)
 elseif(BOOST_CONTEXT_ASSEMBLER STREQUAL gas)
   set(_default_ext .S)
@@ -135,7 +139,7 @@ message(STATUS "Boost.Context: "
 # Enable the right assembler
 
 if(BOOST_CONTEXT_IMPLEMENTATION STREQUAL "fcontext")
-  if(BOOST_CONTEXT_ASSEMBLER STREQUAL gas)
+  if(BOOST_CONTEXT_ASSEMBLER STREQUAL gas OR BOOST_CONTEXT_ASSEMBLER STREQUAL armclang)
     if(CMAKE_CXX_PLATFORM_ID MATCHES "Cygwin")
       enable_language(ASM-ATT)
     else()