cmake: disable fast math by default

Author: illwieckz

CMakeLists.txt

@@ -69,7 +69,7 @@ option(USE_EXTRA_OPTIMIZATION "Enable extra optimization" ON)
 option(USE_LTO "Enable link-time optimization" OFF)
 # Enabling fast math makes generated images less likely to be reproducible.
 # See https://github.com/DaemonEngine/crunch/issues/29
-option(USE_FAST_MATH "Enable fast math (generated images are less likely to be reproducible)" ON)
+option(USE_FAST_MATH "Enable fast math (generated images are less likely to be reproducible)" OFF)
 
 if (MSVC)
 	# Enable MSVC parallel compilation.