Bug#12779790 COMPILATION FAILS OS X 10.7 - IMPLICIT DECLARATION OF

             FUNCTION 'PTHREAD_INIT' 

The problem was that compilation would fail with a warning:
Implicit declaration of function 'pthread_init' if MySQL was
compiled on OS X 10.7 (Lion). The reason was that pthread_init()
is now part of an internal OS X pthread library so it was found
by CMake.

This patch fixes the problem by removing HAVE_PTHREAD_INIT and
related code. pthread_init() was specific to MIT-pthreads which
has not been supported since 4.1 and was therefore no longer
relevant.

No test case added.

config.h.cmake

@@ -219,7 +219,6 @@
 #cmakedefine HAVE_PTHREAD_ATTR_SETSTACKSIZE 1
 #cmakedefine HAVE_PTHREAD_CONDATTR_CREATE 1
 #cmakedefine HAVE_PTHREAD_CONDATTR_SETCLOCK 1
-#cmakedefine HAVE_PTHREAD_INIT 1
 #cmakedefine HAVE_PTHREAD_KEY_DELETE 1
 #cmakedefine HAVE_PTHREAD_KEY_DELETE 1
 #cmakedefine HAVE_PTHREAD_KILL 1

configure.cmake

@@ -391,7 +391,6 @@ CHECK_FUNCTION_EXISTS (pthread_attr_setscope HAVE_PTHREAD_ATTR_SETSCOPE)
 CHECK_FUNCTION_EXISTS (pthread_attr_setstacksize HAVE_PTHREAD_ATTR_SETSTACKSIZE)
 CHECK_FUNCTION_EXISTS (pthread_condattr_create HAVE_PTHREAD_CONDATTR_CREATE)
 CHECK_FUNCTION_EXISTS (pthread_condattr_setclock HAVE_PTHREAD_CONDATTR_SETCLOCK)
-CHECK_FUNCTION_EXISTS (pthread_init HAVE_PTHREAD_INIT)
 CHECK_FUNCTION_EXISTS (pthread_key_delete HAVE_PTHREAD_KEY_DELETE)
 CHECK_FUNCTION_EXISTS (pthread_rwlock_rdlock HAVE_PTHREAD_RWLOCK_RDLOCK)
 CHECK_FUNCTION_EXISTS (pthread_sigmask HAVE_PTHREAD_SIGMASK)

dbug/dbug_analyze.c

@@ -571,9 +571,6 @@ int main (int argc, char **argv)
     FILE *infile;
     FILE *outfile = {stdout};
 
-#if defined(HAVE_PTHREAD_INIT)
-  pthread_init();                       /* Must be called before DBUG_ENTER */
-#endif
   my_thread_global_init(); 
   {
     DBUG_ENTER ("main");

dbug/my_main.c

@@ -16,9 +16,6 @@ char *argv[];
 {
   register int result, ix;
   extern int factorial(int);
-#if defined(HAVE_PTHREAD_INIT)
-  pthread_init();			/* Must be called before DBUG_ENTER */
-#endif
   my_thread_global_init();
 
   {

dbug/tests.c

@@ -44,9 +44,6 @@ int main (int argc, char *argv[])
   if (argc == 1)
     return 0;
 
-#if defined(HAVE_PTHREAD_INIT)
-  pthread_init();                       /* Must be called before DBUG_ENTER */
-#endif
   my_thread_global_init();
 
   dup2(1, 2);

mysys/my_init.c

@@ -99,10 +99,6 @@ my_bool my_init(void)
   fastmutex_global_init();              /* Must be called early */
 #endif
 
-#if defined(HAVE_PTHREAD_INIT)
-  pthread_init();			/* Must be called before DBUG_ENTER */
-#endif
-
   /* $HOME is needed early to parse configuration files located in ~/ */
   if ((home_dir= getenv("HOME")) != 0)
     home_dir= intern_filename(home_dir_buff, home_dir);