diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index d490c7bdf74..0c8820a0e72 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2003-08-28  Alan Modra  <amodra@bigpond.net.au>
+
+	* configure.ac: Test $with_cross_host against $build_alias, not $build.
+	* configure: Regenerate.
+
 2003-08-27  Petur Runolfsson  <peturr02@ru.is>
 
 	* testsuite/27_io/objects/wchar_t/10.cc: Move wcout stuff...
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 69152778649..bd222ff37f5 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -27308,7 +27308,7 @@ else
   # If Canadian cross, then don't pick up tools from the build directory.
   # Used only in GLIBCXX_EXPORT_INCLUDES.
   if test -n "$with_cross_host" &&
-     test x"$build" != x"$with_cross_host" &&
+     test x"$build_alias" != x"$with_cross_host" &&
      test x"$build" != x"$target";
   then
     CANADIAN=yes
diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
index 8c4c16afdff..9a612cf8d14 100644
--- a/libstdc++-v3/configure.ac
+++ b/libstdc++-v3/configure.ac
@@ -165,7 +165,7 @@ else
   # If Canadian cross, then don't pick up tools from the build directory.
   # Used only in GLIBCXX_EXPORT_INCLUDES.
   if test -n "$with_cross_host" &&
-     test x"$build" != x"$with_cross_host" &&
+     test x"$build_alias" != x"$with_cross_host" &&
      test x"$build" != x"$target";
   then
     CANADIAN=yes