Fix setting of stack size when building with clang for windows (#4654)

Author: TheGreatRambler

CMakeLists.txt

@@ -273,7 +273,11 @@ else()
   if(WIN32)
     add_compile_flag("-D_GNU_SOURCE")
     add_compile_flag("-D__STDC_FORMAT_MACROS")
-    add_link_flag("-Wl,--stack,8388608")
+    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+      add_link_flag("-Wl,/stack:8388608")
+    else()
+      add_link_flag("-Wl,--stack,8388608")
+    endif()
   elseif(NOT EMSCRIPTEN)
     add_compile_flag("-fPIC")
   endif()