Xcode 9 update breaks build system on Mac OSX

Has any else had issues building on Mac OSX since upgrading to Xcode 9? A number of the toolchain apps now fail with symbol not found errors such as dyld: Symbol not found: _futimens. Have been building on Mac OSX for a number of months without issue and have also tried 3 different computers that all built fine previously but now fail after the Xcode 9 update.

Update: Definitely a Xcode 9 issue, installed Xcode 8.3.3 and it works again. Seems there have been changes to the C++ includes that breaks gdb, m4 and a number of other toolchain items.