Merge of mysql-5.1-bugteam into mysql-trunk-merge.

1 files changed, 62 insertions, 55 deletions

diff --git a/BUILD/check-cpu b/BUILD/check-cpu
index eb001ee61ae..f9f5d423f4f 100755
--- a/BUILD/check-cpu
+++ b/BUILD/check-cpu
@@ -187,69 +187,76 @@ check_cpu () {
     cc=$CC
   fi
 
-  if test "x$compiler" = "x" ; then
-    cc_ver=`$cc --version | sed 1q`
-    cc_verno=`echo $cc_ver | sed -e 's/^.*(GCC)//g; s/[^0-9. ]//g;	 s/^ *//g; s/ .*//g'`
+  if test "x$core2" = "xyes" ; then
+    cpu_arg="core2"
+  fi
+
+  if test "x$compiler" != "x" ; then
+    return 0
+  fi
+
+  # check if compiler is gcc and dump its version
+  cc_verno=`$cc -dumpversion 2>/dev/null`
+  if test "x$?" = "x0" ; then
     set -- `echo $cc_verno | tr '.' ' '`
+    cc_ver="GCC"
     cc_major=$1
     cc_minor=$2
     cc_patch=$3
     cc_comp=`expr $cc_major '*' 100 '+' $cc_minor`
-  
-    case "$cc_ver--$cc_verno" in
-      *GCC*)
-          # different gcc backends (and versions) have different CPU flags
-          case `gcc -dumpmachine` in
-            i?86-* | x86_64-*)
-	      if test "$cc_comp" -lt 304 ; then
-                check_cpu_cflags="-mcpu=${cpu_arg}"
-              elif test "$cc_comp" -ge 402 ; then
-                check_cpu_cflags="-mtune=native"
-              else
-                check_cpu_cflags="-mtune=${cpu_arg}"
-              fi
-              ;;
-            ppc-*)
-                check_cpu_cflags="-mcpu=${cpu_arg} -mtune=${cpu_arg}"
-              ;;
-            *)
-              check_cpu_cflags=""
-              return
-              ;;
-          esac
-        ;;
-      2.95.*)
-        # GCC 2.95 doesn't expose its name in --version output
-        check_cpu_cflags="-m${cpu_arg}"
-        ;;
-      *)
-        check_cpu_cflags=""
-        return
-        ;;
-    esac
-    # now we check whether the compiler really understands the cpu type
-    touch __test.c
-
-    while [ "$cpu_arg" ] ; do
-      printf "testing $cpu_arg ... " >&2
-           
-      # compile check
-      eval "$cc -c $check_cpu_cflags __test.c" 2>/dev/null
-      if test "x$?" = "x0" ; then
-        echo ok >&2
-        break;
-      fi
+  fi
 
-      echo failed >&2
+  case "$cc_ver--$cc_verno" in
+    *GCC*)
+        # different gcc backends (and versions) have different CPU flags
+        case `gcc -dumpmachine` in
+          i?86-* | x86_64-*)
+	    if test "$cc_comp" -lt 304 ; then
+              check_cpu_cflags="-mcpu=${cpu_arg}"
+            elif test "$cc_comp" -ge 402 ; then
+              check_cpu_cflags="-mtune=native"
+            else
+              check_cpu_cflags="-mtune=${cpu_arg}"
+            fi
+            ;;
+          ppc-*)
+              check_cpu_cflags="-mcpu=${cpu_arg} -mtune=${cpu_arg}"
+            ;;
+          *)
+            check_cpu_cflags=""
+            return
+            ;;
+        esac
+      ;;
+    2.95.*)
+      # GCC 2.95 doesn't expose its name in --version output
+      check_cpu_cflags="-m${cpu_arg}"
+      ;;
+    *)
       check_cpu_cflags=""
+      return
+      ;;
+  esac
+
+  # now we check whether the compiler really understands the cpu type
+  touch __test.c
+
+  while [ "$cpu_arg" ] ; do
+    printf "testing $cpu_arg ... " >&2
+
+    # compile check
+    eval "$cc -c $check_cpu_cflags __test.c" 2>/dev/null
+    if test "x$?" = "x0" ; then
+      echo ok >&2
       break;
-    done
-    rm __test.*
-  fi
-  if test "x$core2" = "xyes" ; then
-    cpu_arg="core2"
-  fi
+    fi
+
+    echo failed >&2
+    check_cpu_cflags=""
+    break;
+  done
+  rm __test.*
   return 0
 }
- 
+
 check_cpu