diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0343801..597723c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,24 +1,30 @@
 cmake_minimum_required(VERSION 3.5.0 FATAL_ERROR)
+
 project(demumble CXX)
 
 if (UNIX)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -fno-exceptions -fno-rtti")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
+
   if (${CMAKE_GENERATOR} STREQUAL "Ninja")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color")
-  endif()
-
-  # 10.9 chosen somewhat arbitrary; it's the first target where clang defaults
-  # to libc++ and ld64 defaults to stripping __TEXT,__eh_frame.
-  if (APPLE)
+  elseif(APPLE)
+    # 10.9 chosen somewhat arbitrary; it's the first target where clang defaults
+    # to libc++ and ld64 defaults to stripping __TEXT,__eh_frame.
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.9")
-  else()
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-PIC")
-    set(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -no-pie")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -no-pie")
   endif()
-endif()
+# Folks may want to use MSYS2, MINGW, or any 
+# such build environment while using Clang on Windows:
+elseif(WIN32 AND CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -fno-exceptions -fno-rtti")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
 
-if (WIN32)
+  if (${CMAKE_GENERATOR} STREQUAL "Ninja")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color")
+  endif()
+elseif(WIN32 AND CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
   # https://gitlab.kitware.com/cmake/cmake/-/issues/20610
   string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
   string(REGEX REPLACE "/EHsc" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
@@ -33,9 +39,12 @@ if (WIN32)
   # This is apparently the simplest way to statically link the CRT in CMake:
   string(TOUPPER "${CMAKE_BUILD_TYPE}" build)
   set(flag_var "CMAKE_CXX_FLAGS_${build}")
-  if(${flag_var} MATCHES "/MD")
+
+  if (${flag_var} MATCHES "/MD")
     string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
   endif()
+else()
+  message(FATAL_ERROR "unknown compiler, cannot continue build")
 endif()
 
 include_directories(third_party/llvm/include)