From fd7cca70627637f0fc72cc9fd8f81af8ec7a1a44 Mon Sep 17 00:00:00 2001
From: verylowfreq <60875431+verylowfreq@users.noreply.github.com>
Date: Mon, 15 Aug 2022 09:48:14 +0900
Subject: [PATCH] Fix CMake files for MinGW.

---
 CMakeLists.txt                | 11 +++++++----
 cmake/Toolchain-mingw32.cmake |  1 +
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f82e08576..62a7a90fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,10 +91,13 @@ endif()
 if(MINGW)
     set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -static-libgcc")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libgcc -static-libstdc++")
-    # Link 32 bit SolveSpace with --large-address-aware which allows it to access
-    # up to 3GB on a properly configured 32 bit Windows and up to 4GB on 64 bit.
-    # See https://msdn.microsoft.com/en-us/library/aa366778
-    set(CMAKE_EXE_LINKER_FLAGS "-Wl,--large-address-aware")
+    if(CMAKE_SYSTEM_PROCESSOR STREQUAL "i686")
+        # Link 32 bit SolveSpace with --large-address-aware which allows it to access
+        # up to 3GB on a properly configured 32 bit Windows and up to 4GB on 64 bit.
+        # See https://msdn.microsoft.com/en-us/library/aa366778
+        # This option is unavailable for 64-bit executable linking.
+        set(CMAKE_EXE_LINKER_FLAGS "-Wl,--large-address-aware")
+    endif()
 endif()
 
 # Ensure that all platforms use 64-bit IEEE floating point operations for consistency;
diff --git a/cmake/Toolchain-mingw32.cmake b/cmake/Toolchain-mingw32.cmake
index a8767fddd..8658fc29b 100644
--- a/cmake/Toolchain-mingw32.cmake
+++ b/cmake/Toolchain-mingw32.cmake
@@ -1,4 +1,5 @@
 set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR i686)
 
 set(TRIPLE i686-w64-mingw32)