Xcode 7.3 fails to compile stdio

Question

Created Mar ’16

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Nice update! Basically stuck:

Use of undeclared identifier 'STDERR_FILENO'

Use of undeclared identifier 'STDOUT_FILENO'

Use of undeclared identifier 'dup'

Use of undeclared identifier 'dup2'

Use of undeclared identifier 'close'

Answered by Muse in 126424022

To fix, add: #import "unistd.h"

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Answer 1

Mar ’16

Accepted Answer

To fix, add: #import "unistd.h"

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Answer 2

Apr ’16

Problem is that this breaks hundreds of backups over the last 10 years. Filing as a bug.

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