Alpha Linux changes.

From-SVN: r31030

boehm-gc/ChangeLog

+1999-12-19  Jeff Sturm  <jsturm@sigma6.com>
+
+        * gcconfig.h: Define DATASTART for Alpha Linux.
+
 1999-12-19  Anthony Green  <green@cygnus.com>
 
 	* gcconfig.h: Use libgcj hack for Alpha Linux.  

boehm-gc/gcconfig.h

@@ -992,6 +992,7 @@
                the start of the data segment.  So libgcj defines
                data_start on its own (in libgcjdata.a).  */
             extern int data_start;
+#           define DATASTART &data_start
 #           define DYNAMIC_LOADING
 #       else
 #           define DATASTART ((ptr_t) 0x140000000)

libjava/ChangeLog

+1999-12-23  Anthony Green  <green@cygnus.com>
+
+	* configure: Rebuilt.
+	* configure.in (LIBDATASTARTSPEC): Force data_start in with
+	linker trick.
+
 1999-12-19  Anthony Green  <green@cygnus.com>
 
 	* libgcjdata.c: New file.

libjava/configure

@@ -2473,7 +2473,7 @@ else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  LIBDATASTARTSPEC="-lgcjdata"
+  LIBDATASTARTSPEC="-u data_start -lgcjdata"
    NEEDS_DATA_START=yes	
    echo "$ac_t""missing" 1>&6
 fi

libjava/configure.in

@@ -89,7 +89,7 @@ LIBDATASTARTSPEC=
 NEEDS_DATA_START=
 AC_TRY_LINK([extern int data_start;], [return ((int) &data_start);],
   [AC_MSG_RESULT(found it)],
-  [LIBDATASTARTSPEC="-lgcjdata"
+  [LIBDATASTARTSPEC="-u data_start -lgcjdata"
    NEEDS_DATA_START=yes	
    AC_MSG_RESULT(missing)])
 AC_SUBST(LIBDATASTARTSPEC)