GCRY_THREAD_OPTION_PTHREAD_IMPL

[John D]

 Hello

This:

 #include <gnutls.h>
 #include <gcrypt.h>
 #include <errno.h>
 #include <pthread.h>
GCRY_THREAD_OPTION_PTHREAD_IMPL;

          int main()
          {
             /* The order matters.
              */
             gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
             gnutls_global_init();
          }


Compiles flawlessly on debian 5 64bit..

However, on Cent OS 5 64 bit..
With an identical setup and gcc produces:

[root at localhost code]# gcc -lpthread test.cpp -O -lgnutls -lssl -lcurl
-pthread
test.cpp: In function int gcry_pthread_mutex_init(void**):
test.cpp:5: error: malloc was not declared in this scope
test.cpp:5: error: free was not declared in this scope
test.cpp: In function int gcry_pthread_mutex_destroy(void**):
test.cpp:5: error: invalid conversion from void* to pthread_mutex_t*
test.cpp:5: error:   initializing argument 1 of int
pthread_mutex_destroy(pthread_mutex_t*)
test.cpp:5: error: free was not declared in this scope
test.cpp: In function int gcry_pthread_mutex_lock(void**):
test.cpp:5: error: invalid conversion from void* to pthread_mutex_t*
test.cpp:5: error:   initializing argument 1 of int
pthread_mutex_lock(pthread_mutex_t*)
test.cpp: In function int gcry_pthread_mutex_unlock(void**):
test.cpp:5: error: invalid conversion from void* to pthread_mutex_t*
test.cpp:5: error:   initializing argument 1 of int
pthread_mutex_unlock(pthread_mutex_t*)
[root at localhost code]#

Might anyone be able to shed any light on what and why,
I need to get this rectified.

Thanks a million,
John
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