Disable precompiled header by default on Mac

CMakeLists.txt

@@ -93,7 +93,12 @@ option(USE_HARDENING "Use stack protection and other hardening flags" 0)
 option(USE_WERROR "Tell the compiler to make the build fail when warnings are present" 0)
 option(USE_PEDANTIC "Tell the compiler to be pedantic" 0)
 option(USE_DEBUG_OPTIMIZE "Try to optimize the debug build" 1)
-option(USE_PRECOMPILED_HEADER "Improve build times by using a precompiled header" 1)
+if (APPLE)
+    # Turn off by default because it is reportedly broken
+    option(USE_PRECOMPILED_HEADER "Improve build times by using a precompiled header" 0)
+else()
+    option(USE_PRECOMPILED_HEADER "Improve build times by using a precompiled header" 1)
+endif()
 option(USE_ADDRESS_SANITIZER "Try to use the address sanitizer" 0)
 option(BE_VERBOSE "Tell the compiler to report all warnings" 0)
 option(USE_STATIC_LIBS "Tries to use static libs where possible. Only works for Linux" 0)