backported configure flag from 5.0

    workaround for HPUX signal.h error, missing extern "C" 
    moved my_thread_end to NdbThreadExit
   more checks for shared memory transporter signum setup

acinclude.m4

@@ -1624,6 +1624,11 @@ AC_DEFUN([MYSQL_CHECK_NDB_OPTIONS], [
   --without-ndb-debug   Disable special ndb debug features],
               [ndb_debug="$withval"],
               [ndb_debug="default"])
+  AC_ARG_WITH([ndb-ccflags],
+              [
+  --with-ndb-ccflags    Extra CC options for ndb compile],
+              [ndb_cxxflags_fix="$ndb_cxxflags_fix $withval"],
+              [ndb_cxxflags_fix=$ndb_cxxflags_fix])
 
   AC_MSG_CHECKING([for NDB Cluster options])
   AC_MSG_RESULT([])

include/my_global.h

@@ -135,7 +135,13 @@
 #ifdef HAVE_UNIXWARE7_THREADS
 #include <thread.h>
 #else
+#if defined(HPUX10) || defined(HPUX11)
+C_MODE_START			/* HPUX needs this, signal.h bug */
+#include <pthread.h>
+C_MODE_END
+#else
 #include <pthread.h>		/* AIX must have this included first */
+#endif
 #endif /* HAVE_UNIXWARE7_THREADS */
 #endif /* HAVE_mit_thread */
 #if !defined(SCO) && !defined(_REENTRANT)

ndb/src/common/portlib/NdbThread.c

@@ -56,7 +56,6 @@ ndb_thread_wrapper(void* _ss){
       void *ret;
       struct NdbThread * ss = (struct NdbThread *)_ss;
       ret= (* ss->func)(ss->object);
-      my_thread_end();
       NdbThread_Exit(ret);
     }
   /* will never be reached */
@@ -140,6 +139,7 @@ int NdbThread_WaitFor(struct NdbThread* p_wait_thread, void** status)
 
 void NdbThread_Exit(void *status)
 {
+  my_thread_end();
   pthread_exit(status);
 }
 

ndb/src/mgmsrv/ConfigInfo.cpp

@@ -3192,13 +3192,27 @@ fixShmKey(InitConfigFileParser::Context & ctx, const char *)
 {
   DBUG_ENTER("fixShmKey");
   {
+    static int last_signum= -1;
     Uint32 signum;
     if(!ctx.m_currentSection->get("Signum", &signum))
     {
       signum= OPT_NDB_SHM_SIGNUM_DEFAULT;
+      if (signum <= 0)
+      {
+	  ctx.reportError("Unable to set default parameter for [SHM]Signum"
+			  " please specify [SHM DEFAULT]Signum");
+	  return false;
+      }
       ctx.m_currentSection->put("Signum", signum);
       DBUG_PRINT("info",("Added Signum=%u", signum));
     }
+    if ( last_signum != (int)signum && last_signum >= 0 )
+    {
+      ctx.reportError("All shared memory transporters must have same [SHM]Signum defined."
+		      " Use [SHM DEFAULT]Signum");
+      return false;
+    }
+    last_signum= (int)signum;
   }
   {
     Uint32 id1= 0, id2= 0, key= 0;