Compile surfseg using fast floating point

surfseg/src/CMakeLists.txt

@@ -6,5 +6,10 @@ add_library(surfseg STATIC graph.cpp MaxFlow.cpp surface_segment.cpp manifold_me
 target_compile_definitions (surfseg PRIVATE NO_OPENGL)
 
 set_property(TARGET surfseg PROPERTY POSITION_INDEPENDENT_CODE ON)
+if (WIN32)
+    # TODO: Should actually check for MSVC compiler
+    # TODO: Add similar flags for other compilers
+    set_target_properties (surfseg PROPERTIES COMPILE_FLAGS "/Z7 /fp:fast")
+endif ()
 
 target_link_libraries(surfseg GEL)
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