Bug 71851

Summary: libwayland-server.so: error: undefined reference to 'pthread_key_create' (and more)
Product: Wayland Reporter: Michał Górny <mgorny>
Component: waylandAssignee: Wayland bug list <wayland-bugs>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: Build log

Description Michał Górny 2013-11-20 20:14:01 UTC 
Created attachment 89547 [details]
Build log

Recently the git master for wayland stopped building with pthread-related errors:

../src/.libs/libwayland-server.so: error: undefined reference to 'pthread_key_create'
../src/.libs/libwayland-server.so: error: undefined reference to 'pthread_getspecific'
../src/.libs/libwayland-server.so: error: undefined reference to 'pthread_once'
../src/.libs/libwayland-server.so: error: undefined reference to 'pthread_setspecific'

Looking at the build system, I think it is completely missing the code necessary to detect and set proper flags for pthread support. As suspected, passing 'LIBS=-pthread' to configure results in the build succeeding.

Attaching our build log.
Comment 1 Kristian Høgsberg 2013-11-24 01:08:23 UTC 
commit 5a019e38a1316a31072a9cb6de8da4377f3cfad5
Author: Kristian Høgsberg <krh@bitplanet.net>
Date:   Sat Nov 23 12:24:26 2013 -0800

    Add -pthread to AM_CFLAGS to do the right thing when using threads

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