Merge chilla.local:/home/mydev/mysql-4.1-axmrg

into  chilla.local:/home/mydev/mysql-5.0-axmrg

BUILD/SETUP.sh.rej

@@ -0,0 +1,19 @@
+***************
+*** 39,46 ****
+  c_warnings="$global_warnings -Wunused"
+  cxx_warnings="$global_warnings -Woverloaded-virtual -Wsign-promo -Wreorder -Wctor-dtor-privacy -Wnon-virtual-dtor"
+  
+! alpha_cflags="-mcpu=ev6 -Wa,-mev6"	# Not used yet
+! pentium_cflags="-mcpu=pentiumpro"
+  sparc_cflags=""
+  
+  # be as fast as we can be without losing our ability to backtrace
+--- 39,46 ----
+  c_warnings="$global_warnings -Wunused"
+  cxx_warnings="$global_warnings -Woverloaded-virtual -Wsign-promo -Wreorder -Wctor-dtor-privacy -Wnon-virtual-dtor"
+  
+! #alpha_cflags="-mcpu=ev6 -Wa,-mev6"	# Not used yet
+! #pentium_cflags="-mcpu=pentiumpro"
+  sparc_cflags=""
+  
+  # be as fast as we can be without losing our ability to backtrace

configure.in.rej

@@ -0,0 +1,299 @@
+***************
+*** 388,402 ****
+  if expr "$target_os" : "[[Ll]]inux.*" > /dev/null
+  then
+    MYSQLD_DEFAULT_SWITCHES="--skip-locking"
+!   IS_LINUX="true"
+    AC_MSG_RESULT("yes");
+  else
+    MYSQLD_DEFAULT_SWITCHES=""
+!   IS_LINUX="false"
+    AC_MSG_RESULT("no");
+  fi
+  AC_SUBST(MYSQLD_DEFAULT_SWITCHES)
+! AC_SUBST(IS_LINUX)
+  
+  dnl Find paths to some shell programs
+  AC_PATH_PROG(LN, ln, ln)
+--- 388,403 ----
+  if expr "$target_os" : "[[Ll]]inux.*" > /dev/null
+  then
+    MYSQLD_DEFAULT_SWITCHES="--skip-locking"
+!   TARGET_LINUX="true"
+    AC_MSG_RESULT("yes");
++   AC_DEFINE([TARGET_OS_LINUX], [1], [Whether we build for Linux])
+  else
+    MYSQLD_DEFAULT_SWITCHES=""
+!   TARGET_LINUX="false"
+    AC_MSG_RESULT("no");
+  fi
+  AC_SUBST(MYSQLD_DEFAULT_SWITCHES)
+! AC_SUBST(TARGET_LINUX)
+  
+  dnl Find paths to some shell programs
+  AC_PATH_PROG(LN, ln, ln)
+***************
+*** 576,582 ****
+  # (this is true on the MySQL build machines to avoid NSS problems)
+  #
+  
+! if test "$IS_LINUX" = "true" -a "$static_nss" = ""
+  then
+    tmp=`nm /usr/lib/libc.a  | grep _nss_files_getaliasent_r`
+    if test -n "$tmp"
+--- 577,583 ----
+  # (this is true on the MySQL build machines to avoid NSS problems)
+  #
+  
+! if test "$TARGET_LINUX" = "true" -a "$static_nss" = ""
+  then
+    tmp=`nm /usr/lib/libc.a  | grep _nss_files_getaliasent_r`
+    if test -n "$tmp"
+***************
+*** 827,833 ****
+  ])
+  AC_SUBST(WRAPLIBS)
+  
+! if test "$IS_LINUX" = "true"; then
+    AC_MSG_CHECKING([for atomic operations])
+  
+    AC_LANG_SAVE
+--- 828,834 ----
+  ])
+  AC_SUBST(WRAPLIBS)
+  
+! if test "$TARGET_LINUX" = "true"; then
+    AC_MSG_CHECKING([for atomic operations])
+  
+    AC_LANG_SAVE
+***************
+*** 870,876 ****
+      [ USE_PSTACK=no ])
+    pstack_libs=
+    pstack_dirs=
+!   if test "$USE_PSTACK" = yes -a "$IS_LINUX" = "true" -a "$BASE_MACHINE_TYPE" = "i386" -a "$with_mit_threads" = "no"
+    then
+      have_libiberty= have_libbfd=
+      my_save_LIBS="$LIBS"
+--- 871,877 ----
+      [ USE_PSTACK=no ])
+    pstack_libs=
+    pstack_dirs=
+!   if test "$USE_PSTACK" = yes -a "$TARGET_LINUX" = "true" -a "$BASE_MACHINE_TYPE" = "i386" -a "$with_mit_threads" = "no"
+    then
+      have_libiberty= have_libbfd=
+      my_save_LIBS="$LIBS"
+***************
+*** 1239,1301 ****
+  # Hack for DEC-UNIX (OSF1)
+  if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
+  then
+!   # Look for LinuxThreads.
+!   AC_MSG_CHECKING("LinuxThreads")
+!     grepres=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
+!     getconfres=`which getconf >/dev/null && getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |grep LINUXTHREADS | wc -l || echo 0`
+!     if test "$grepres" -gt 0 -o "$getconfres" -gt 0
+      then
+!       AC_MSG_RESULT("Found")
+!       AC_DEFINE(HAVE_LINUXTHREADS)
+!       # Linux 2.0 sanity check
+!       AC_TRY_COMPILE([#include <sched.h>], [int a = sched_get_priority_min(1);], ,
+!       AC_MSG_ERROR([Syntax error in sched.h. Change _P to __P in the /usr/include/sched.h file. See the Installation chapter in the Reference Manual]))
+!       # RedHat 5.0 does not work with dynamic linking of this. -static also
+!       # gives a speed increase in linux so it does not hurt on other systems.
+!       with_named_thread="-lpthread"
+!     else
+!       AC_MSG_RESULT("Not found")
+!       # If this is a linux machine we should barf
+!       AC_MSG_CHECKING("NPTL")
+!       if test "$IS_LINUX" = "true"
+!       then
+!         getconfres=`which getconf >/dev/null && getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |grep NPTL | wc -l || echo 0`
+!         if test "$getconfres" -gt 0
+          then
+!           AC_DEFINE(HAVE_LINUXTHREADS) dnl All this code predates NPTL, so "have linuxthreads" is a poor name.
+!           with_named_thread="-lpthread"
+          else
+!           AC_MSG_ERROR([This is a Linux system and neither Linuxthreads nor NPTL were
+! found. Please install Linuxthreads or a new glibc and try 
+! again.  See the Installation chapter in the Reference Manual for 
+! more information.])
+          fi
+!       else
+! 	AC_MSG_CHECKING("DEC threads")
+!         if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
+! 	then
+! 	  with_named_thread="-lpthread -lmach -lexc"
+! 	  CFLAGS="$CFLAGS -D_REENTRANT"
+! 	  CXXFLAGS="$CXXFLAGS -D_REENTRANT"
+! 	  AC_DEFINE(HAVE_DEC_THREADS)
+! 	  AC_MSG_RESULT("yes")
+! 	else
+! 	  AC_MSG_RESULT("no")
+! 	  AC_MSG_CHECKING("DEC 3.2 threads")
+!           if test -f /usr/shlib/libpthreads.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
+! 	  then
+! 	    with_named_thread="-lpthreads -lmach -lc_r"
+! 	    AC_DEFINE(HAVE_DEC_THREADS)
+! 	    AC_DEFINE(HAVE_DEC_3_2_THREADS)
+!             with_osf32_threads="yes"
+!             MYSQLD_DEFAULT_SWITCHES="--skip-thread-priority"
+! 	    AC_MSG_RESULT("yes")
+! 	  else
+! 	    AC_MSG_RESULT("no")
+!           fi
+! 	fi
+!      fi
+!    fi
+  fi
+  
+  
+--- 1240,1337 ----
+  # Hack for DEC-UNIX (OSF1)
+  if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
+  then
+!     AC_MSG_CHECKING("Linux threads")
+!     if test "$TARGET_LINUX" = "true"
+      then
+!         AC_MSG_RESULT("starting")
+!         # use getconf to check glibc contents
+!         AC_MSG_CHECKING("getconf GNU_LIBPTHREAD_VERSION")
+!         case `getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` in
+!         NPTL* )
+!                 AC_MSG_RESULT("NPTL")
+!                 AC_DEFINE([HAVE_NPTL], [1], [NPTL threads implementation])
+!                 with_named_thread="-lpthread"
+!                 ;;
+!         LINUXTHREADS* )
+!                 AC_MSG_RESULT("Linuxthreads")
+!                 AC_DEFINE([HAVE_LINUXTHREADS], [1],
+!                       [Whether we are using Xavier Leroy's LinuxThreads])
+!                 with_named_thread="-lpthread"
+!                 ;;
+!         * )
+!                 AC_MSG_RESULT("unknown")
+!                 ;;
+!         esac
+!         if test "$with_named_thread" = "no"
+          then
+!           # old method, check headers
+!           # Look for LinuxThreads.
+!           AC_MSG_CHECKING("LinuxThreads in header file comment")
+!           res=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
+!           if test "$res" -gt 0
+!           then
+!             AC_MSG_RESULT("Found")
+!             AC_DEFINE([HAVE_LINUXTHREADS], [1],
+!                   [Whether we are using Xavier Leroy's LinuxThreads])
+!             # Linux 2.0 sanity check
+!             AC_TRY_COMPILE([#include <sched.h>], [int a = sched_get_priority_min(1);], ,
+!             AC_MSG_ERROR([Syntax error in sched.h. Change _P to __P in the /usr/include/sched.h file. See the Installation chapter in the Reference Manual]))
+!             # RedHat 5.0 does not work with dynamic linking of this. -static also
+!             # gives a speed increase in linux so it does not hurt on other systems.
+!             with_named_thread="-lpthread"
+!           else
+!             AC_MSG_RESULT("Not found")
+!             # If this is a linux machine we should barf
+!             AC_MSG_ERROR([This is a Linux system without a working getconf,
+! and Linuxthreads was not found. Please install it (or a new glibc) and try again.
+! See the Installation chapter in the Reference Manual for more information.])
+!           fi
+          else
+!           AC_MSG_RESULT("no need to check headers")
+          fi
+!         AC_MSG_CHECKING("for pthread_create in -lpthread");
+!         ac_save_LIBS="$LIBS"
+!         LIBS="$LIBS -lpthread"
+!         AC_TRY_LINK( [#include <pthread.h>],
+!               [ (void) pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
+!               AC_MSG_RESULT("yes"),
+!               [ AC_MSG_RESULT("no")
+!                 AC_MSG_ERROR([
+! This is a Linux system claiming to support threads, either Linuxthreads or NPTL, but linking a test program failed.
+! Please install one of these (or a new glibc) and try again.
+! See the Installation chapter in the Reference Manual for more information.]) ]
+!               )
+!         LIBS="$ac_save_LIBS"
+!     else
+!         AC_MSG_RESULT("no")
+!     fi  # "$TARGET_LINUX"
+! fi  # "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
+! 
+! if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
+! then
+!   AC_MSG_CHECKING("DEC threads")
+!   if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
+!   then
+!     with_named_thread="-lpthread -lmach -lexc"
+!     CFLAGS="$CFLAGS -D_REENTRANT"
+!     CXXFLAGS="$CXXFLAGS -D_REENTRANT"
+!     AC_DEFINE(HAVE_DEC_THREADS)
+!     AC_MSG_RESULT("yes")
+!   else
+!     AC_MSG_RESULT("no")
+!     AC_MSG_CHECKING("DEC 3.2 threads")
+!     if test -f /usr/shlib/libpthreads.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
+!     then
+!       with_named_thread="-lpthreads -lmach -lc_r"
+!       AC_DEFINE(HAVE_DEC_THREADS)
+!       AC_DEFINE(HAVE_DEC_3_2_THREADS)
+!       with_osf32_threads="yes"
+!       MYSQLD_DEFAULT_SWITCHES="--skip-thread-priority"
+!       AC_MSG_RESULT("yes")
+!     else
+!       AC_MSG_RESULT("no")
+!     fi
+!   fi
+  fi
+  
+  
+***************
+*** 1720,1726 ****
+  AC_SUBST(COMPILATION_COMMENT)
+  
+  AC_MSG_CHECKING("need of special linking flags")
+! if test "$IS_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
+  then
+    LDFLAGS="$LDFLAGS -rdynamic"
+    AC_MSG_RESULT("-rdynamic")
+--- 1756,1762 ----
+  AC_SUBST(COMPILATION_COMMENT)
+  
+  AC_MSG_CHECKING("need of special linking flags")
+! if test "$TARGET_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
+  then
+    LDFLAGS="$LDFLAGS -rdynamic"
+    AC_MSG_RESULT("-rdynamic")
+***************
+*** 1873,1878 ****
+   tell atod memcpy memmove \
+   setupterm strcasecmp sighold vidattr lrand48 localtime_r \
+   sigset sigthreadmask pthread_sigmask pthread_setprio pthread_setprio_np \
+   pthread_setschedparam pthread_attr_setprio pthread_attr_setschedparam \
+   pthread_attr_create pthread_getsequence_np pthread_attr_setstacksize \
+   pthread_attr_getstacksize pthread_key_delete \
+--- 1909,1915 ----
+   tell atod memcpy memmove \
+   setupterm strcasecmp sighold vidattr lrand48 localtime_r \
+   sigset sigthreadmask pthread_sigmask pthread_setprio pthread_setprio_np \
++  sigaction sigemptyset sigaddset \
+   pthread_setschedparam pthread_attr_setprio pthread_attr_setschedparam \
+   pthread_attr_create pthread_getsequence_np pthread_attr_setstacksize \
+   pthread_attr_getstacksize pthread_key_delete \
+***************
+*** 1884,1890 ****
+  # Sanity check: We chould not have any fseeko symbol unless
+  # large_file_support=yes
+  AC_CHECK_FUNCS(fseeko,
+! [if test "$large_file_support" = no -a "$IS_LINUX" = "true";
+  then
+    AC_MSG_ERROR("Found fseeko symbol but large_file_support is not enabled!");
+  fi]
+--- 1921,1927 ----
+  # Sanity check: We chould not have any fseeko symbol unless
+  # large_file_support=yes
+  AC_CHECK_FUNCS(fseeko,
+! [if test "$large_file_support" = no -a "$TARGET_LINUX" = "true";
+  then
+    AC_MSG_ERROR("Found fseeko symbol but large_file_support is not enabled!");
+  fi]

include/my_global.h

@@ -454,7 +454,10 @@ int	__void__;
 #endif
 
 /* Define some useful general macros */
-#if !defined(max)
+#if defined(__cplusplus) && defined(__GNUC__)
+#define max(a, b)     ((a) >? (b))
+#define min(a, b)     ((a) <? (b))
+#elif !defined(max)
 #define max(a, b)	((a) > (b) ? (a) : (b))
 #define min(a, b)	((a) < (b) ? (a) : (b))
 #endif

include/my_global.h.rej

@@ -0,0 +1,17 @@
+***************
+*** 97,103 ****
+  
+  
+  /* Fix problem with S_ISLNK() on Linux */
+! #if defined(HAVE_LINUXTHREADS)
+  #undef  _GNU_SOURCE
+  #define _GNU_SOURCE 1
+  #endif
+--- 97,103 ----
+  
+  
+  /* Fix problem with S_ISLNK() on Linux */
+! #if defined(TARGET_OS_LINUX) || defined(__GLIBC__)
+  #undef  _GNU_SOURCE
+  #define _GNU_SOURCE 1
+  #endif

include/my_pthread.h

@@ -30,6 +30,14 @@ extern "C" {
 #define EXTERNC
 #endif /* __cplusplus */ 
 
+/* Thread library */
+
+#define THD_LIB_OTHER 1
+#define THD_LIB_NPTL  2
+#define THD_LIB_LT    4
+
+extern uint thd_lib_detected;
+
 /*
   BUG#24507: Race conditions inside current NPTL pthread_exit() implementation.
   
@@ -49,7 +57,6 @@ extern "C" {
 #define NPTL_PTHREAD_EXIT_BUG	1
 #endif 
 
-
 #if defined(__WIN__) || defined(OS2)
 
 #ifdef OS2

include/my_pthread.h.rej

@@ -0,0 +1,80 @@
+***************
+*** 286,293 ****
+  #undef HAVE_PTHREAD_RWLOCK_RDLOCK
+  #undef HAVE_SNPRINTF
+  
+! #define sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
+! #define signal(A,B) pthread_signal((A),(void (*)(int)) (B))
+  #define my_pthread_attr_setprio(A,B)
+  #endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
+  
+--- 294,301 ----
+  #undef HAVE_PTHREAD_RWLOCK_RDLOCK
+  #undef HAVE_SNPRINTF
+  
+! #define my_sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
+! #define my_signal(A,B) pthread_signal((A),(void (*)(int)) (B))
+  #define my_pthread_attr_setprio(A,B)
+  #endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
+  
+***************
+*** 324,337 ****
+  #if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(_AIX)
+  int sigwait(sigset_t *setp, int *sigp);		/* Use our implemention */
+  #endif
+! #if !defined(HAVE_SIGSET) && !defined(HAVE_mit_thread) && !defined(sigset)
+! #define sigset(A,B) do { struct sigaction s; sigset_t set;              \
+!                          sigemptyset(&set);                             \
+!                          s.sa_handler = (B);                            \
+!                          s.sa_mask    = set;                            \
+!                          s.sa_flags   = 0;                              \
+!                          sigaction((A), &s, (struct sigaction *) NULL); \
+                         } while (0)
+  #endif
+  
+  #ifndef my_pthread_setprio
+--- 332,358 ----
+  #if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(_AIX)
+  int sigwait(sigset_t *setp, int *sigp);		/* Use our implemention */
+  #endif
+! 
+! /*
+!   We define my_sigset() and use that instead of the system sigset() so that
+!   we can favor an implementation based on sigaction(). On some systems, such
+!   as Mac OS X, sigset() results in flags such as SA_RESTART being set, and
+!   we want to make sure that no such flags are set.
+! */
+! #if defined(HAVE_SIGACTION) && !defined(my_sigset)
+! #define my_sigset(A,B) do { struct sigaction s; sigset_t set; int rc;      \
+!                             DBUG_ASSERT((A) != 0);                         \
+!                             sigemptyset(&set);                             \
+!                             s.sa_handler = (B);                            \
+!                             s.sa_mask    = set;                            \
+!                             s.sa_flags   = 0;                              \
+!                             rc= sigaction((A), &s, (struct sigaction *) NULL); \
+!                             DBUG_ASSERT(rc == 0);                          \
+                         } while (0)
++ #elif defined(HAVE_SIGSET) && !defined(my_sigset)
++ #define my_sigset(A,B) sigset((A),(B))
++ #elif !defined(my_sigset)
++ #define my_sigset(A,B) signal((A),(B))
+  #endif
+  
+  #ifndef my_pthread_setprio
+***************
+*** 416,422 ****
+  #undef	pthread_detach_this_thread
+  #define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); }
+  #undef sigset
+! #define sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
+  #endif
+  
+  #if ((defined(HAVE_PTHREAD_ATTR_CREATE) && !defined(HAVE_SIGWAIT)) || defined(HAVE_DEC_3_2_THREADS)) && !defined(HAVE_CTHREADS_WRAPPER)
+--- 437,443 ----
+  #undef	pthread_detach_this_thread
+  #define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); }
+  #undef sigset
+! #define my_sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
+  #endif
+  
+  #if ((defined(HAVE_PTHREAD_ATTR_CREATE) && !defined(HAVE_SIGWAIT)) || defined(HAVE_DEC_3_2_THREADS)) && !defined(HAVE_CTHREADS_WRAPPER)

include/thr_alarm.h

@@ -24,11 +24,6 @@ extern "C" {
 #ifndef USE_ALARM_THREAD
 #define USE_ONE_SIGNAL_HAND		/* One must call process_alarm */
 #endif
-#ifdef HAVE_LINUXTHREADS
-#define THR_CLIENT_ALARM SIGALRM
-#else
-#define THR_CLIENT_ALARM SIGUSR1
-#endif
 #ifdef HAVE_rts_threads
 #undef USE_ONE_SIGNAL_HAND
 #define USE_ALARM_THREAD

mysys/my_pthread.c

@@ -29,6 +29,8 @@
 #define SCHED_POLICY SCHED_OTHER
 #endif
 
+uint thd_lib_detected;
+
 #ifndef my_pthread_setprio
 void my_pthread_setprio(pthread_t thread_id,int prior)
 {
@@ -335,7 +337,7 @@ void *sigwait_thread(void *set_arg)
       sigaction(i, &sact, (struct sigaction*) 0);
     }
   }
-  sigaddset(set,THR_CLIENT_ALARM);
+  sigaddset(set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
   pthread_sigmask(SIG_UNBLOCK,(sigset_t*) set,(sigset_t*) 0);
   alarm_thread=pthread_self();			/* For thr_alarm */
 

mysys/thr_alarm.c

@@ -57,9 +57,7 @@ static void *alarm_handler(void *arg);
 #define reschedule_alarms() pthread_kill(alarm_thread,THR_SERVER_ALARM)
 #endif
 
-#if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
 static sig_handler thread_alarm(int sig __attribute__((unused)));
-#endif
 
 static int compare_ulong(void *not_used __attribute__((unused)),
 			 byte *a_ptr,byte* b_ptr)
@@ -78,9 +76,13 @@ void init_thr_alarm(uint max_alarms)
   sigfillset(&full_signal_set);			/* Neaded to block signals */
   pthread_mutex_init(&LOCK_alarm,MY_MUTEX_INIT_FAST);
   pthread_cond_init(&COND_alarm,NULL);
-#if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
+#ifndef USE_ALARM_THREAD
-  my_sigset(THR_CLIENT_ALARM,thread_alarm);
+  if (thd_lib_detected != THD_LIB_LT)
 #endif
+  {
+    my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
+	      thread_alarm);
+  }
   sigemptyset(&s);
   sigaddset(&s, THR_SERVER_ALARM);
   alarm_thread=pthread_self();
@@ -98,10 +100,12 @@ void init_thr_alarm(uint max_alarms)
   }
 #elif defined(USE_ONE_SIGNAL_HAND)
   pthread_sigmask(SIG_BLOCK, &s, NULL);		/* used with sigwait() */
-#if THR_SERVER_ALARM == THR_CLIENT_ALARM
+  if (thd_lib_detected == THD_LIB_LT)
-  my_sigset(THR_CLIENT_ALARM,process_alarm);	/* Linuxthreads */
+  {
+    my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
+              process_alarm);        /* Linuxthreads */
     pthread_sigmask(SIG_UNBLOCK, &s, NULL);
-#endif
+  }
 #else
   my_sigset(THR_SERVER_ALARM, process_alarm);
   pthread_sigmask(SIG_UNBLOCK, &s, NULL);
@@ -272,18 +276,18 @@ sig_handler process_alarm(int sig __attribute__((unused)))
   This must be first as we can't call DBUG inside an alarm for a normal thread
 */
 
-#if THR_SERVER_ALARM == THR_CLIENT_ALARM
+  if (thd_lib_detected == THD_LIB_LT &&
-  if (!pthread_equal(pthread_self(),alarm_thread))
+      !pthread_equal(pthread_self(),alarm_thread))
   {
 #if defined(MAIN) && !defined(__bsdi__)
-    printf("thread_alarm\n"); fflush(stdout);
+    printf("thread_alarm in process_alarm\n"); fflush(stdout);
 #endif
 #ifdef DONT_REMEMBER_SIGNAL
-    my_sigset(THR_CLIENT_ALARM,process_alarm);	/* int. thread system calls */
+    my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
+              process_alarm);	/* int. thread system calls */
 #endif
     return;
   }
-#endif
 
   /*
     We have to do do the handling of the alarm in a sub function,
@@ -327,7 +331,8 @@ static sig_handler process_alarm_part2(int sig __attribute__((unused)))
 	alarm_data=(ALARM*) queue_element(&alarm_queue,i);
 	alarm_data->alarmed=1;			/* Info to thread */
 	if (pthread_equal(alarm_data->thread,alarm_thread) ||
-	    pthread_kill(alarm_data->thread, THR_CLIENT_ALARM))
+	    pthread_kill(alarm_data->thread,
+			 thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
 	{
 #ifdef MAIN
 	  printf("Warning: pthread_kill couldn't find thread!!!\n");
@@ -351,7 +356,8 @@ static sig_handler process_alarm_part2(int sig __attribute__((unused)))
 	alarm_data->alarmed=1;			/* Info to thread */
 	DBUG_PRINT("info",("sending signal to waiting thread"));
 	if (pthread_equal(alarm_data->thread,alarm_thread) ||
-	    pthread_kill(alarm_data->thread, THR_CLIENT_ALARM))
+	    pthread_kill(alarm_data->thread,
+			 thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
 	{
 #ifdef MAIN
 	  printf("Warning: pthread_kill couldn't find thread!!!\n");
@@ -488,7 +494,7 @@ void thr_alarm_info(ALARM_INFO *info)
   ARGSUSED
 */
 
-#if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
+
 static sig_handler thread_alarm(int sig)
 {
 #ifdef MAIN
@@ -498,7 +504,6 @@ static sig_handler thread_alarm(int sig)
   my_sigset(sig,thread_alarm);		/* int. thread system calls */
 #endif
 }
-#endif
 
 
 #ifdef HAVE_TIMESPEC_TS_SEC
@@ -926,9 +931,7 @@ static void *signal_hand(void *arg __attribute__((unused)))
   sigaddset(&set,SIGINT);
   sigaddset(&set,SIGQUIT);
   sigaddset(&set,SIGTERM);
-#if THR_CLIENT_ALARM != SIGHUP
   sigaddset(&set,SIGHUP);
-#endif
 #ifdef SIGTSTP
   sigaddset(&set,SIGTSTP);
 #endif
@@ -940,7 +943,7 @@ static void *signal_hand(void *arg __attribute__((unused)))
 #endif
 #endif /* OS2 */
   printf("server alarm: %d  thread alarm: %d\n",
-	 THR_SERVER_ALARM,THR_CLIENT_ALARM);
+	 THR_SERVER_ALARM, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
   DBUG_PRINT("info",("Starting signal and alarm handling thread"));
   for(;;)
   {
@@ -1012,11 +1015,11 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused)))
   sigaddset(&set,SIGTSTP);
 #endif
   sigaddset(&set,THR_SERVER_ALARM);
-  sigdelset(&set,THR_CLIENT_ALARM);
+  sigdelset(&set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
   (void) pthread_sigmask(SIG_SETMASK,&set,NULL);
 #ifdef NOT_USED
   sigemptyset(&set);
-  sigaddset(&set,THR_CLIENT_ALARM);
+  sigaddset(&set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
   VOID(pthread_sigmask(SIG_UNBLOCK, &set, (sigset_t*) 0));
 #endif
 #endif /* OS2 */
@@ -1066,8 +1069,8 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused)))
     }
   }
   pthread_mutex_unlock(&LOCK_thread_count);
-  end_thr_alarm(1);
   thr_alarm_info(&alarm_info);
+  end_thr_alarm(1);
   printf("Main_thread:  Alarms: %u  max_alarms: %u  next_alarm_time: %lu\n",
 	 alarm_info.active_alarms, alarm_info.max_used_alarms,
 	 alarm_info.next_alarm_time);

mysys/thr_alarm.c.rej

@@ -0,0 +1,220 @@
+***************
+*** 76,96 ****
+    alarm_aborted=0;
+    init_queue(&alarm_queue,max_alarms+1,offsetof(ALARM,expire_time),0,
+  	     compare_ulong,NullS);
+!   sigfillset(&full_signal_set);			/* Neaded to block signals */
+    pthread_mutex_init(&LOCK_alarm,MY_MUTEX_INIT_FAST);
+    pthread_cond_init(&COND_alarm,NULL);
+! #if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
+! #if defined(HAVE_mit_thread)
+!   sigset(THR_CLIENT_ALARM,thread_alarm);	/* int. thread system calls */
+! #else
+    {
+!     struct sigaction sact;
+!     sact.sa_flags = 0;
+!     sact.sa_handler = thread_alarm;
+!     sigaction(THR_CLIENT_ALARM, &sact, (struct sigaction*) 0);
+    }
+- #endif
+- #endif
+    sigemptyset(&s);
+    sigaddset(&s, THR_SERVER_ALARM);
+    alarm_thread=pthread_self();
+--- 74,89 ----
+    alarm_aborted=0;
+    init_queue(&alarm_queue,max_alarms+1,offsetof(ALARM,expire_time),0,
+  	     compare_ulong,NullS);
+!   sigfillset(&full_signal_set);			/* Needed to block signals */
+    pthread_mutex_init(&LOCK_alarm,MY_MUTEX_INIT_FAST);
+    pthread_cond_init(&COND_alarm,NULL);
+! #ifndef USE_ALARM_THREAD
+!   if (thd_lib_detected != THD_LIB_LT)
+! #endif
+    {
+!     my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
+! 	      thread_alarm);
+    }
+    sigemptyset(&s);
+    sigaddset(&s, THR_SERVER_ALARM);
+    alarm_thread=pthread_self();
+***************
+*** 108,120 ****
+    }
+  #elif defined(USE_ONE_SIGNAL_HAND)
+    pthread_sigmask(SIG_BLOCK, &s, NULL);		/* used with sigwait() */
+! #if THR_SERVER_ALARM == THR_CLIENT_ALARM
+!   sigset(THR_CLIENT_ALARM,process_alarm);	/* Linuxthreads */
+!   pthread_sigmask(SIG_UNBLOCK, &s, NULL);
+! #endif
+  #else
+    pthread_sigmask(SIG_UNBLOCK, &s, NULL);
+-   sigset(THR_SERVER_ALARM,process_alarm);
+  #endif
+    DBUG_VOID_RETURN;
+  }
+--- 101,115 ----
+    }
+  #elif defined(USE_ONE_SIGNAL_HAND)
+    pthread_sigmask(SIG_BLOCK, &s, NULL);		/* used with sigwait() */
+!   if (thd_lib_detected == THD_LIB_LT)
+!   {
+!     my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
+!               process_alarm);        /* Linuxthreads */
+!     pthread_sigmask(SIG_UNBLOCK, &s, NULL);
+!   }
+  #else
++   my_sigset(THR_SERVER_ALARM, process_alarm);
+    pthread_sigmask(SIG_UNBLOCK, &s, NULL);
+  #endif
+    DBUG_VOID_RETURN;
+  }
+***************
+*** 240,246 ****
+        if (alarm_data->malloced)
+  	my_free((gptr) alarm_data,MYF(0));
+        found++;
+! #ifndef DBUG_OFF
+        break;
+  #endif
+      }
+--- 235,241 ----
+        if (alarm_data->malloced)
+  	my_free((gptr) alarm_data,MYF(0));
+        found++;
+! #ifdef DBUG_OFF
+        break;
+  #endif
+      }
+***************
+*** 249,258 ****
+    if (!found)
+    {
+      if (*alarmed)
+!       fprintf(stderr,"Warning: Didn't find alarm %lx in queue of %d alarms\n",
+! 	      (long) *alarmed, alarm_queue.elements);
+!     DBUG_PRINT("warning",("Didn't find alarm %lx in queue\n",
+! 			  (long) *alarmed));
+    }
+    pthread_mutex_unlock(&LOCK_alarm);
+    pthread_sigmask(SIG_SETMASK,&old_mask,NULL);
+--- 244,254 ----
+    if (!found)
+    {
+      if (*alarmed)
+!       fprintf(stderr,
+!               "Warning: Didn't find alarm 0x%lx in queue of %d alarms\n",
+!               (long) *alarmed, alarm_queue.elements);
+!     DBUG_PRINT("warning",("Didn't find alarm 0x%lx in queue\n",
+!                          (long) *alarmed));
+    }
+    pthread_mutex_unlock(&LOCK_alarm);
+    pthread_sigmask(SIG_SETMASK,&old_mask,NULL);
+***************
+*** 274,291 ****
+    This must be first as we can't call DBUG inside an alarm for a normal thread
+  */
+  
+! #if THR_SERVER_ALARM == THR_CLIENT_ALARM
+!   if (!pthread_equal(pthread_self(),alarm_thread))
+    {
+  #if defined(MAIN) && !defined(__bsdi__)
+!     printf("thread_alarm\n"); fflush(stdout);
+  #endif
+  #ifdef DONT_REMEMBER_SIGNAL
+!     sigset(THR_CLIENT_ALARM,process_alarm);	/* int. thread system calls */
+  #endif
+      return;
+    }
+- #endif
+  
+    /*
+      We have to do do the handling of the alarm in a sub function,
+--- 270,287 ----
+    This must be first as we can't call DBUG inside an alarm for a normal thread
+  */
+  
+!   if (thd_lib_detected == THD_LIB_LT &&
+!       !pthread_equal(pthread_self(),alarm_thread))
+    {
+  #if defined(MAIN) && !defined(__bsdi__)
+!     printf("thread_alarm in process_alarm\n"); fflush(stdout);
+  #endif
+  #ifdef DONT_REMEMBER_SIGNAL
+!     my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
+!               process_alarm);	/* int. thread system calls */
+  #endif
+      return;
+    }
+  
+    /*
+      We have to do do the handling of the alarm in a sub function,
+***************
+*** 301,307 ****
+    process_alarm_part2(sig);
+  #ifndef USE_ALARM_THREAD
+  #if defined(DONT_REMEMBER_SIGNAL) && !defined(USE_ONE_SIGNAL_HAND)
+!   sigset(THR_SERVER_ALARM,process_alarm);
+  #endif
+    pthread_mutex_unlock(&LOCK_alarm);
+    pthread_sigmask(SIG_SETMASK,&old_mask,NULL);
+--- 297,303 ----
+    process_alarm_part2(sig);
+  #ifndef USE_ALARM_THREAD
+  #if defined(DONT_REMEMBER_SIGNAL) && !defined(USE_ONE_SIGNAL_HAND)
+!   my_sigset(THR_SERVER_ALARM, process_alarm);
+  #endif
+    pthread_mutex_unlock(&LOCK_alarm);
+    pthread_sigmask(SIG_SETMASK,&old_mask,NULL);
+***************
+*** 504,520 ****
+    ARGSUSED
+  */
+  
+- #if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
+  static sig_handler thread_alarm(int sig)
+  {
+  #ifdef MAIN
+    printf("thread_alarm\n"); fflush(stdout);
+  #endif
+  #ifdef DONT_REMEMBER_SIGNAL
+!   sigset(sig,thread_alarm);		/* int. thread system calls */
+  #endif
+  }
+- #endif
+  
+  
+  #ifdef HAVE_TIMESPEC_TS_SEC
+--- 499,513 ----
+    ARGSUSED
+  */
+  
+  static sig_handler thread_alarm(int sig)
+  {
+  #ifdef MAIN
+    printf("thread_alarm\n"); fflush(stdout);
+  #endif
+  #ifdef DONT_REMEMBER_SIGNAL
+!   my_sigset(sig, thread_alarm);		/* int. thread system calls */
+  #endif
+  }
+  
+  
+  #ifdef HAVE_TIMESPEC_TS_SEC
+***************
+*** 915,921 ****
+    printf("Warning: Got signal %d from thread %s\n",sig,my_thread_name());
+    fflush(stdout);
+  #ifdef DONT_REMEMBER_SIGNAL
+!   sigset(sig,print_signal_warning);		/* int. thread system calls */
+  #endif
+  #ifndef OS2
+    if (sig == SIGALRM)
+--- 908,914 ----
+    printf("Warning: Got signal %d from thread %s\n",sig,my_thread_name());
+    fflush(stdout);
+  #ifdef DONT_REMEMBER_SIGNAL
+!   my_sigset(sig, print_signal_warning);         /* int. thread system calls */
+  #endif
+  #ifndef OS2
+    if (sig == SIGALRM)

sql/mysqld.cc

@@ -198,12 +198,6 @@ inline void reset_floating_point_exceptions()
 
 } /* cplusplus */
 
-
-#if defined(HAVE_LINUXTHREADS)
-#define THR_KILL_SIGNAL SIGINT
-#else
-#define THR_KILL_SIGNAL SIGUSR2		// Can't use this with LinuxThreads
-#endif
 #define MYSQL_KILL_SIGNAL SIGTERM
 
 #ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R
@@ -659,6 +653,7 @@ static void clean_up_mutexes(void);
 static void wait_for_signal_thread_to_end(void);
 static int test_if_case_insensitive(const char *dir_name);
 static void create_pid_file();
+static uint get_thread_lib(void);
 
 #ifndef EMBEDDED_LIBRARY
 /****************************************************************************
@@ -698,7 +693,8 @@ static void close_connections(void)
     DBUG_PRINT("info",("Waiting for select thread"));
 
 #ifndef DONT_USE_THR_ALARM
-    if (pthread_kill(select_thread,THR_CLIENT_ALARM))
+    if (pthread_kill(select_thread,
+                     thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
       break;					// allready dead
 #endif
     set_timespec(abstime, 2);
@@ -2154,7 +2150,10 @@ static void init_signals(void)
   DBUG_ENTER("init_signals");
 
   if (test_flags & TEST_SIGINT)
-    my_sigset(THR_KILL_SIGNAL,end_thread_signal);
+  {
+    my_sigset(thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2,
+              end_thread_signal);
+  }
   my_sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called!
 
   if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
@@ -2211,8 +2210,12 @@ static void init_signals(void)
 #endif
   sigaddset(&set,THR_SERVER_ALARM);
   if (test_flags & TEST_SIGINT)
-    sigdelset(&set,THR_KILL_SIGNAL);		// May be SIGINT
+  {
-  sigdelset(&set,THR_CLIENT_ALARM);		// For alarms
+    // May be SIGINT
+    sigdelset(&set, thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2);
+  }
+  // For alarms
+  sigdelset(&set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
   sigprocmask(SIG_SETMASK,&set,NULL);
   pthread_sigmask(SIG_SETMASK,&set,NULL);
   DBUG_VOID_RETURN;
@@ -2276,23 +2279,19 @@ pthread_handler_t signal_hand(void *arg __attribute__((unused)))
   */
   init_thr_alarm(max_connections +
 		 global_system_variables.max_insert_delayed_threads + 10);
-#if SIGINT != THR_KILL_SIGNAL
+  if (thd_lib_detected != THD_LIB_LT && test_flags & TEST_SIGINT)
-  if (test_flags & TEST_SIGINT)
   {
     (void) sigemptyset(&set);			// Setup up SIGINT for debug
     (void) sigaddset(&set,SIGINT);		// For debugging
     (void) pthread_sigmask(SIG_UNBLOCK,&set,NULL);
   }
-#endif
   (void) sigemptyset(&set);			// Setup up SIGINT for debug
 #ifdef USE_ONE_SIGNAL_HAND
   (void) sigaddset(&set,THR_SERVER_ALARM);	// For alarms
 #endif
 #ifndef IGNORE_SIGHUP_SIGQUIT
   (void) sigaddset(&set,SIGQUIT);
-#if THR_CLIENT_ALARM != SIGHUP
   (void) sigaddset(&set,SIGHUP);
-#endif
 #endif
   (void) sigaddset(&set,SIGTERM);
   (void) sigaddset(&set,SIGTSTP);
@@ -3375,6 +3374,7 @@ int main(int argc, char **argv)
   }
 #endif /* __WIN__ */
 
+  thd_lib_detected= get_thread_lib();
   if (init_common_variables(MYSQL_CONFIG_NAME,
 			    argc, argv, load_default_groups))
     unireg_abort(1);				// Will do exit
@@ -7545,6 +7545,22 @@ static void create_pid_file()
 }
 
 
+static uint get_thread_lib(void)
+{
+  char buff[64];
+    
+#ifdef _CS_GNU_LIBPTHREAD_VERSION
+  confstr(_CS_GNU_LIBPTHREAD_VERSION, buff, sizeof(buff));
+
+  if (!strncasecmp(buff, "NPTL", 4))
+    return THD_LIB_NPTL;
+  else if (!strncasecmp(buff, "linuxthreads", 12))
+    return THD_LIB_LT;
+#endif
+  return THD_LIB_OTHER;
+}
+
+
 /* Clear most status variables */
 void refresh_status(THD *thd)
 {

sql/mysqld.cc.rej

@@ -0,0 +1,161 @@
+***************
+*** 177,188 ****
+  } /* cplusplus */
+  
+  
+- #if defined(HAVE_LINUXTHREADS)
+- #define THR_KILL_SIGNAL SIGINT
+- #else
+- #define THR_KILL_SIGNAL SIGUSR2		// Can't use this with LinuxThreads
+- #endif
+- 
+  #ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R
+  #include <sys/types.h>
+  #else
+--- 177,182 ----
+  } /* cplusplus */
+  
+  
+  #ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R
+  #include <sys/types.h>
+  #else
+***************
+*** 505,510 ****
+  static void clean_up_mutexes(void);
+  static int test_if_case_insensitive(const char *dir_name);
+  static void create_pid_file();
+  
+  /****************************************************************************
+  ** Code to end mysqld
+--- 499,505 ----
+  static void clean_up_mutexes(void);
+  static int test_if_case_insensitive(const char *dir_name);
+  static void create_pid_file();
++ static uint get_thread_lib(void);
+  
+  /****************************************************************************
+  ** Code to end mysqld
+***************
+*** 544,550 ****
+      DBUG_PRINT("info",("Waiting for select_thread"));
+  
+  #ifndef DONT_USE_THR_ALARM
+!     if (pthread_kill(select_thread,THR_CLIENT_ALARM))
+        break;					// allready dead
+  #endif
+      set_timespec(abstime, 2);
+--- 539,546 ----
+      DBUG_PRINT("info",("Waiting for select_thread"));
+  
+  #ifndef DONT_USE_THR_ALARM
+!     if (pthread_kill(select_thread,
+! 		     thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
+        break;					// allready dead
+  #endif
+      set_timespec(abstime, 2);
+***************
+*** 844,850 ****
+  		      sig,my_thread_id());
+    }
+  #ifdef DONT_REMEMBER_SIGNAL
+!   sigset(sig,print_signal_warning);		/* int. thread system calls */
+  #endif
+  #if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
+    if (sig == SIGALRM)
+--- 840,846 ----
+  		      sig,my_thread_id());
+    }
+  #ifdef DONT_REMEMBER_SIGNAL
+!   my_sigset(sig, print_signal_warning);         /* int. thread system calls */
+  #endif
+  #if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
+    if (sig == SIGALRM)
+***************
+*** 1841,1848 ****
+    DBUG_ENTER("init_signals");
+  
+    if (test_flags & TEST_SIGINT)
+!     sigset(THR_KILL_SIGNAL,end_thread_signal);
+!   sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called!
+  
+    if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
+    {
+--- 1837,1847 ----
+    DBUG_ENTER("init_signals");
+  
+    if (test_flags & TEST_SIGINT)
+!   {
+!     my_sigset(thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2,
+!               end_thread_signal);
+!   }
+!   my_sigset(THR_SERVER_ALARM, print_signal_warning); // Should never be called!
+  
+    if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
+    {
+***************
+*** 1877,1883 ****
+  #endif
+    (void) sigemptyset(&set);
+  #ifdef THREAD_SPECIFIC_SIGPIPE
+!   sigset(SIGPIPE,abort_thread);
+    sigaddset(&set,SIGPIPE);
+  #else
+    (void) signal(SIGPIPE,SIG_IGN);		// Can't know which thread
+--- 1876,1882 ----
+  #endif
+    (void) sigemptyset(&set);
+  #ifdef THREAD_SPECIFIC_SIGPIPE
+!   my_sigset(SIGPIPE, abort_thread);
+    sigaddset(&set,SIGPIPE);
+  #else
+    (void) signal(SIGPIPE,SIG_IGN);		// Can't know which thread
+***************
+*** 2237,2244 ****
+    MY_INIT(argv[0]);		// init my_sys library & pthreads
+    tzset();			// Set tzname
+  
+    start_time=time((time_t*) 0);
+- 
+  #ifdef OS2
+    {
+      // fix timezone for daylight saving
+--- 2236,2243 ----
+    MY_INIT(argv[0]);		// init my_sys library & pthreads
+    tzset();			// Set tzname
+  
++   thd_lib_detected= get_thread_lib();
+    start_time=time((time_t*) 0);
+  #ifdef OS2
+    {
+      // fix timezone for daylight saving
+***************
+*** 5547,5552 ****
+      (void) my_write(file, (byte*) buff, (uint) (end-buff),MYF(MY_WME));
+      (void) my_close(file, MYF(0));
+    }
+  }
+  
+  
+--- 5546,5567 ----
+      (void) my_write(file, (byte*) buff, (uint) (end-buff),MYF(MY_WME));
+      (void) my_close(file, MYF(0));
+    }
++ }
++ 
++ 
++ static uint get_thread_lib(void)
++ {
++   char buff[64];
++     
++ #ifdef _CS_GNU_LIBPTHREAD_VERSION
++   confstr(_CS_GNU_LIBPTHREAD_VERSION, buff, sizeof(buff));
++ 
++   if (!strncasecmp(buff, "NPTL", 4))
++     return THD_LIB_NPTL;
++   else if (!strncasecmp(buff, "linuxthreads", 12))
++     return THD_LIB_LT;
++ #endif
++   return THD_LIB_OTHER;
+  }
+  
+