Undefined reference to `pthread_cond_signal@GLIBC_2.3.2


 
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Old 07-06-2011
Undefined reference to `pthread_cond_signal@GLIBC_2.3.2

When i try to make my c project i am getting an error message like this : ../../../lib/linux/libxml.so: undefined reference to `pthread_cond_signal@GLIBC_2.3.2'

Please help me in resolving this.
 
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PTHREAD_COND_WAIT(3)					   BSD Library Functions Manual 				      PTHREAD_COND_WAIT(3)

NAME
pthread_cond_wait -- wait on a condition variable SYNOPSIS
#include <pthread.h> int pthread_cond_wait(pthread_cond_t *restrict cond, pthread_mutex_t *restrict mutex); DESCRIPTION
The pthread_cond_wait() function atomically unlocks the mutex and blocks the current thread on the condition specified by the cond argument. The current thread unblocks only after another thread calls pthread_cond_signal(3) or pthread_cond_broadcast(3) with the same condition vari- able. The mutex must be locked before calling this function, otherwise the behavior is undefined. Before pthread_cond_wait() returns to the calling function, it re-acquires the mutex. RETURN VALUES
If successful, the pthread_cond_wait() function will return zero; otherwise, an error number will be returned to indicate the error. ERRORS
pthread_cond_wait() will fail if: [EINVAL] The value specified by cond or the value specified by mutex is invalid. SEE ALSO
pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3), pthread_cond_signal(3), pthread_cond_timedwait(3) STANDARDS
pthread_cond_wait() conforms to ISO/IEC 9945-1:1996 (``POSIX.1''). Darwin November 5, 2001 Darwin