py27-matplotlib doesn't build on macOS 10.13 (High Sierra)

[GeneralDuke9]

Tried to update py27-matplotlib from 2.1.0_1 to 2.1.0_2, failed to build. Please find the debug log attached. Important part:

:info:build In file included from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:128:
:info:build /System/Library/Frameworks/Foundation.framework/Headers/NSUUID.h:26:49: error: nullability specifier '_Nullable' cannot be applied to non-pointer type 'uuid_t' (aka 'unsigned char [16]')
:info:build - (instancetype)initWithUUIDBytes:(const uuid_t _Nullable)bytes;
:info:build                                                 ^
:info:build /System/Library/Frameworks/Foundation.framework/Headers/NSUUID.h:29:30: error: nullability specifier '_Nonnull' cannot be applied to non-pointer type 'uuid_t' (aka 'unsigned char [16]')
:info:build - (void)getUUIDBytes:(uuid_t _Nonnull)uuid;
:info:build                              ^

[GeneralDuke9]

Logfile of building py27-matplotlib 2.1.0_2 on macOS 10.13

[mf2k (Frank Schima)]

Please do not Cc openmaintainer because it is not a valid email address.

[ryandesign (Ryan Carsten Schmidt)]

The log shows you have clang 800.0.42.1, which is from Xcode 8.2.1. For High Sierra, you need Xcode 9 or later, and the corresponding version of the command line tools.

[Schamschula (Marius Schamschula)]

On my High Sierra system, I successfully installed py27-matplotlib @2.1.0_2.

[GeneralDuke9]

It compiles properly now. I believe there has been an update for XCode.