bk commit into 5.1 tree (mikron:1.2525)

[mikael]

Below is the list of changes that have just been committed into a local
5.1 repository of mikron. When mikron does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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ChangeSet@stripped, 2007-06-04 11:56:08+02:00, mikron@stripped +1 -0
  Use mtune=native when compiling with GCC 4.2 or newer

  BUILD/build_source.sh@stripped, 2007-06-04 11:56:00+02:00, mikron@stripped +3 -8
    Use mtune=native when compiling with GCC 4.2 or newer

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	mikron
# Host:	mikael-ronstr-ms-dator.local
# Root:	/Users/mikron/mysql_clones/wl3834

--- 1.17/BUILD/build_source.sh	2007-06-04 11:47:16 +02:00
+++ 1.18/BUILD/build_source.sh	2007-06-04 11:56:00 +02:00
@@ -691,22 +691,17 @@
     *GCC*)
       # different gcc backends (and versions) have different CPU flags
       case `gcc -dumpmachine` in
-        i?86-*)
+        i?86-* | x86_64-*)
           if test "$cc_comp" -lt 304 ; then
             check_cpu_args="-mcpu=$cpu_arg"
+          elif test "$cc_comp" -ge 402 ; then
+            check_cpu_args="-mtune=native"
           else
             check_cpu_args="-mtune=$cpu_arg"
           fi
           ;;
         ppc-*)
           check_cpu_args="-mcpu=$cpu_arg -mtune=$cpu_arg"
-          ;;
-        x86_64-*)
-          if test "$cc_comp" -lt 304 ; then
-            check_cpu_args="-mcpu=$cpu_arg"
-          else
-            check_cpu_args="-mtune=$cpu_arg"
-          fi
           ;;
         *)
           check_cpu_cflags=""