Merge jbruehe@bk-internal.mysql.com:/home/bk/mysql-4.1

into mysql.com:/M41/mysql-4.1


acinclude.m4:
  Auto merged
configure.in:
  Auto merged

1 files changed, 94 insertions, 61 deletions

diff --git a/configure.in b/configure.in
index 8191d46c0e6..bdad88f19f5 100644
--- a/configure.in
+++ b/configure.in
@@ -410,15 +410,16 @@ AC_MSG_CHECKING("if we should use 'skip-locking' as default for $target_os")
 if expr "$target_os" : "[[Ll]]inux.*" > /dev/null
 then
   MYSQLD_DEFAULT_SWITCHES="--skip-locking"
-  IS_LINUX="true"
-  AC_MSG_RESULT("yes");
+  TARGET_LINUX="true"
+  AC_MSG_RESULT("yes")
+  AC_DEFINE([TARGET_OS_LINUX], [1], [Whether we build for Linux])
 else
   MYSQLD_DEFAULT_SWITCHES=""
-  IS_LINUX="false"
-  AC_MSG_RESULT("no");
+  TARGET_LINUX="false"
+  AC_MSG_RESULT("no")
 fi
 AC_SUBST(MYSQLD_DEFAULT_SWITCHES)
-AC_SUBST(IS_LINUX)
+AC_SUBST(TARGET_LINUX)
 
 dnl Find paths to some shell programs
 AC_PATH_PROG(LN, ln, ln)
@@ -607,7 +608,7 @@ AC_SUBST(NOINST_LDFLAGS)
 # (this is true on the MySQL build machines to avoid NSS problems)
 #
 
-if test "$IS_LINUX" = "true" -a "$static_nss" = ""
+if test "$TARGET_LINUX" = "true" -a "$static_nss" = ""
 then
   tmp=`nm /usr/lib/libc.a  | grep _nss_files_getaliasent_r`
   if test -n "$tmp"
@@ -841,7 +842,7 @@ struct request_info *req;
 ])
 AC_SUBST(WRAPLIBS)
 
-if test "$IS_LINUX" = "true"; then
+if test "$TARGET_LINUX" = "true"; then
   AC_MSG_CHECKING([for atomic operations])
 
   atom_ops=
@@ -885,7 +886,7 @@ int main()
     [ 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"
+  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"
@@ -1266,61 +1267,93 @@ esac
 # We have to check libc last because else it fails on Solaris 2.6
 
 with_posix_threads="no"
-# Hack for DEC-UNIX (OSF1)
+# Search thread lib on Linux
 if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
 then
-  # Look for LinuxThreads.
-  AC_MSG_CHECKING("LinuxThreads")
-    res=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
-    if test "$res" -gt 0
+    AC_MSG_CHECKING("Linux threads")
+    if test "$TARGET_LINUX" = "true"
     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
-      if test "$IS_LINUX" = "true"
-      then
-	AC_MSG_ERROR([This is a linux system and Linuxthreads was not
-found. On linux Linuxthreads should be used.  Please install Linuxthreads
-(or a new glibc) and try again.  See the Installation chapter in the
-Reference Manual for more information.])
-      else
-	AC_MSG_CHECKING("DEC threads")
-        if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
-	then
-	  with_named_thread="-lpthread -lmach -lexc"
-	  CFLAGS="$CFLAGS -D_REENTRANT"
-	  CXXFLAGS="$CXXFLAGS -D_REENTRANT"
-	  AC_DEFINE(HAVE_DEC_THREADS, [1],
-                    [Whether we are using DEC threads])
-	  AC_MSG_RESULT("yes")
-	else
-	  AC_MSG_RESULT("no")
-	  AC_MSG_CHECKING("DEC 3.2 threads")
-          if test -f /usr/shlib/libpthreads.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
-	  then
-	    with_named_thread="-lpthreads -lmach -lc_r"
-	    AC_DEFINE(HAVE_DEC_THREADS, [1])
-            AC_DEFINE([HAVE_DEC_3_2_THREADS], [1],
-                      [Whether we are using OSF1 DEC threads on 3.2])
-            with_osf32_threads="yes"
-            MYSQLD_DEFAULT_SWITCHES="--skip-thread-priority"
-	    AC_MSG_RESULT("yes")
-	  else
-	    AC_MSG_RESULT("no")
+        AC_MSG_RESULT("starting")
+        # use getconf to check glibc contents
+        AC_MSG_CHECKING("getconf GNU_LIBPTHREAD_VERSION")
+        case `getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` in
+        NPTL* )
+                AC_MSG_RESULT("NPTL")
+                AC_DEFINE([HAVE_NPTL], [1], [NPTL threads implementation])
+                with_named_thread="-lpthread"
+                ;;
+        LINUXTHREADS* )
+                AC_MSG_RESULT("Linuxthreads")
+                AC_DEFINE([HAVE_LINUXTHREADS], [1], 
+                      [Whether we are using Xavier Leroy's LinuxThreads])
+                with_named_thread="-lpthread"
+                ;;
+        * )
+                AC_MSG_RESULT("unknown")
+                ;;
+        esac
+        if test "$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 "$res" -gt 0
+          then
+            AC_MSG_RESULT("Found")
+            AC_DEFINE([HAVE_LINUXTHREADS], [1],
+                  [Whether we are using Xavier Leroy's LinuxThreads])
+            # Linux 2.0 sanity check
+            AC_TRY_COMPILE([#include <sched.h>], [int a = sched_get_priority_min(1);], ,
+                  AC_MSG_ERROR([Syntax error in sched.h. Change _P to __P in the /usr/include/sched.h file. See the Installation chapter in the Reference Manual]))
+            # RedHat 5.0 does not work with dynamic linking of this. -static also
+            # gives a speed increase in linux so it does not hurt on other systems.
+            with_named_thread="-lpthread"
+          else
+            AC_MSG_RESULT("Not found")
+            # If this is a linux machine we should barf
+            AC_MSG_ERROR([This is a Linux system without a working getconf, 
+and Linuxthreads was not found. Please install it (or a new glibc) and try again.  
+See the Installation chapter in the Reference Manual for more information.])
           fi
-	fi
-     fi
-   fi
-fi
+        else
+            AC_MSG_RESULT("no need to check headers")
+        fi
+        
+        AC_MSG_CHECKING("for pthread_create in -lpthread");
+        ac_save_LIBS="$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 "$with_mit_threads" = "no"
+
+
+# Hack for DEC-UNIX (OSF1 -> Tru64)
+if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
+then
+    AC_MSG_CHECKING("DEC threads post OSF/1 3.2")
+    if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
+    then
+      with_named_thread="-lpthread -lmach -lexc"
+      CFLAGS="$CFLAGS -D_REENTRANT"
+      CXXFLAGS="$CXXFLAGS -D_REENTRANT"
+      AC_DEFINE(HAVE_DEC_THREADS, [1], [Whether we are using DEC threads])
+      AC_MSG_RESULT("yes")
+    else
+      AC_MSG_RESULT("no")
+    fi  # DEC threads
+fi  # "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
 
 
 dnl This is needed because -lsocket has to come after the thread
@@ -1738,7 +1771,7 @@ fi
 AC_SUBST(COMPILATION_COMMENT)
 
 AC_MSG_CHECKING("need of special linking flags")
-if test "$IS_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
+if test "$TARGET_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
 then
   LDFLAGS="$LDFLAGS -rdynamic"
   AC_MSG_RESULT("-rdynamic")
@@ -1957,7 +1990,7 @@ CFLAGS="$ORG_CFLAGS"
 # Sanity check: We chould not have any fseeko symbol unless
 # large_file_support=yes
 AC_CHECK_FUNC(fseeko,
-[if test "$large_file_support" = no -a "$IS_LINUX" = "true";
+[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]