Index: unix/configure
===================================================================
RCS file: /cvsroot/tcl/tcl/unix/configure,v
retrieving revision 1.118
diff -u -r1.118 configure
--- unix/configure	18 Aug 2004 19:59:09 -0000	1.118
+++ unix/configure	24 Sep 2004 00:01:07 -0000
@@ -8354,14 +8354,105 @@
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 
-	if test "x${tcl_cv_type_off64_t}" = "xyes" ; then
+	echo "$as_me:$LINENO: result: ${tcl_cv_type_off64_t}" >&5
+echo "${ECHO_T}${tcl_cv_type_off64_t}" >&6
+
+
+
+for ac_func in open64 lseek64
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+	# Set HAVE_TYPE_OFF64_T only when the off64_t type and the
+	# functions lseek64 and open64 are defined.
+	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
+		test "x${ac_cv_func_lseek64}" = "xyes" && \
+		test "x${ac_cv_func_open64}" = "xyes" ; then
 	    cat >>confdefs.h <<\_ACEOF
 #define HAVE_TYPE_OFF64_T 1
 _ACEOF
 
 	fi
-	echo "$as_me:$LINENO: result: ${tcl_cv_type_off64_t}" >&5
-echo "${ECHO_T}${tcl_cv_type_off64_t}" >&6
     fi
 
 #--------------------------------------------------------------------
Index: unix/tcl.m4
===================================================================
RCS file: /cvsroot/tcl/tcl/unix/tcl.m4,v
retrieving revision 1.121
diff -u -r1.121 tcl.m4
--- unix/tcl.m4	18 Aug 2004 19:59:11 -0000	1.121
+++ unix/tcl.m4	24 Sep 2004 00:01:08 -0000
@@ -2497,10 +2497,17 @@
 	    AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
 ],
 		tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
-	if test "x${tcl_cv_type_off64_t}" = "xyes" ; then
+	AC_MSG_RESULT(${tcl_cv_type_off64_t})
+
+	AC_CHECK_FUNCS(open64 lseek64)
+
+	# Set HAVE_TYPE_OFF64_T only when the off64_t type and the
+	# functions lseek64 and open64 are defined.
+	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
+		test "x${ac_cv_func_lseek64}" = "xyes" && \
+		test "x${ac_cv_func_open64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_TYPE_OFF64_T)
 	fi
-	AC_MSG_RESULT(${tcl_cv_type_off64_t})
     fi])
 
 #--------------------------------------------------------------------
