[New-bugs-announce] [issue16588] gcc 4.7 ilegitimate unused-but-set warnings on Python/thread_pthread.h

[Bruno Dupuis]

New submission from Bruno Dupuis:

Looks like #10951, but for another version of gcc.

I get these warnings:

 In file included from Python/thread.c:86:0:
 Python/thread_pthread.h: In function ‘PyThread_free_lock’:
 Python/thread_pthread.h:304:17: attention : variable ‘error’ set but not used [-Wunused-but-set-variable]
 Python/thread_pthread.h: In function ‘PyThread_acquire_lock_timed’:
 Python/thread_pthread.h:335:17: attention : variable ‘error’ set but not used [-Wunused-but-set-variable]
 Python/thread_pthread.h: In function ‘PyThread_release_lock’:
 Python/thread_pthread.h:386:17: attention : variable ‘error’ set but not used [-Wunused-but-set-variable]

I tried to remove the variables, but the build crash as they are used in

 #define CHECK_STATUS(name)  if (status != 0) { perror(name); error = 1; }

looks like a gcc 4.7.2 bug.

----------
components: Build
messages: 176737
nosy: bruno.dupuis
priority: normal
severity: normal
status: open
title: gcc 4.7 ilegitimate unused-but-set warnings on Python/thread_pthread.h
versions: Python 3.3

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<http://bugs.python.org/issue16588>
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