diff --git a/CMakeLists.txt b/CMakeLists.txt
index 19d710761..e50fb56c4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,37 +49,13 @@ option(ENABLE_RTTI "Enables RTTI" OFF)
 option(SPIRV_ALLOW_TIMERS "Allow timers via clock_gettime on supported platforms" ON)
 
 if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
-  add_definitions(-DSPIRV_LINUX)
   set(SPIRV_TIMER_ENABLED ${SPIRV_ALLOW_TIMERS})
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Emscripten")
-    add_definitions(-DSPIRV_EMSCRIPTEN)
 elseif("${CMAKE_SYSTEM_NAME}" MATCHES "Windows")
   add_definitions(-DSPIRV_WINDOWS)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "CYGWIN")
   add_definitions(-DSPIRV_WINDOWS)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
-  add_definitions(-DSPIRV_MAC)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "iOS")
-  add_definitions(-DSPIRV_IOS)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "tvOS")
-  add_definitions(-DSPIRV_TVOS)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "visionOS")
-  add_definitions(-DSPIRV_VISIONOS)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Android")
-  add_definitions(-DSPIRV_ANDROID)
   set(SPIRV_TIMER_ENABLED ${SPIRV_ALLOW_TIMERS})
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "FreeBSD")
-  add_definitions(-DSPIRV_FREEBSD)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "OpenBSD")
-  add_definitions(-DSPIRV_OPENBSD)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Fuchsia")
-  add_definitions(-DSPIRV_FUCHSIA)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "GNU")
-  add_definitions(-DSPIRV_GNU)
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "QNX")
-  add_definitions(-DSPIRV_QNX)
-else()
-  message(FATAL_ERROR "Your platform '${CMAKE_SYSTEM_NAME}' is not supported!")
 endif()
 
 if (${SPIRV_TIMER_ENABLED})
diff --git a/source/print.cpp b/source/print.cpp
index f36812ef5..3143db178 100644
--- a/source/print.cpp
+++ b/source/print.cpp
@@ -14,26 +14,7 @@
 
 #include "source/print.h"
 
-#if defined(SPIRV_ANDROID) || defined(SPIRV_LINUX) || defined(SPIRV_MAC) || \
-    defined(SPIRV_IOS) || defined(SPIRV_TVOS) || defined(SPIRV_FREEBSD) ||  \
-    defined(SPIRV_OPENBSD) || defined(SPIRV_EMSCRIPTEN) ||                  \
-    defined(SPIRV_FUCHSIA) || defined(SPIRV_GNU) || defined(SPIRV_QNX)
-namespace spvtools {
-
-clr::reset::operator const char*() { return "\x1b[0m"; }
-
-clr::grey::operator const char*() { return "\x1b[1;30m"; }
-
-clr::red::operator const char*() { return "\x1b[31m"; }
-
-clr::green::operator const char*() { return "\x1b[32m"; }
-
-clr::yellow::operator const char*() { return "\x1b[33m"; }
-
-clr::blue::operator const char*() { return "\x1b[34m"; }
-
-}  // namespace spvtools
-#elif defined(SPIRV_WINDOWS)
+#if defined(SPIRV_WINDOWS)
 #include <windows.h>
 
 namespace spvtools {
@@ -111,17 +92,17 @@ clr::blue::operator const char*() {
 #else
 namespace spvtools {
 
-clr::reset::operator const char*() { return ""; }
+clr::reset::operator const char*() { return "\x1b[0m"; }
 
-clr::grey::operator const char*() { return ""; }
+clr::grey::operator const char*() { return "\x1b[1;30m"; }
 
-clr::red::operator const char*() { return ""; }
+clr::red::operator const char*() { return "\x1b[31m"; }
 
-clr::green::operator const char*() { return ""; }
+clr::green::operator const char*() { return "\x1b[32m"; }
 
-clr::yellow::operator const char*() { return ""; }
+clr::yellow::operator const char*() { return "\x1b[33m"; }
 
-clr::blue::operator const char*() { return ""; }
+clr::blue::operator const char*() { return "\x1b[34m"; }
 
 }  // namespace spvtools
 #endif