diff --git a/glibc.changes b/glibc.changes
index 0608777..25c1f18 100644
--- a/glibc.changes
+++ b/glibc.changes
@@ -1,3 +1,6 @@
+* Sat Sep 24 2011 Alistair Buxton <a.j.buxton@gmail.com> - 2.13
+- Add i486 conditionals to spec file.
+
 * Thu Sep 15 2011 Carsten Munk <carsten@maemo.org> - 2.13
 - meego -> %{_vendor}
 
diff --git a/glibc.spec b/glibc.spec
index 17db120..5649a18 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -58,8 +58,12 @@ BuildRequires: gawk,  util-linux
 BuildRequires: gcc >= 3.2
 %define enablekernel 2.6.25
 %ifarch %{ix86}
+%ifarch i486
+%define _target_cpu	i486
+%else
 %define _target_cpu	i686
 %endif
+%endif
 %ifarch i386
 %define nptl_target_cpu i486
 %else
@@ -206,8 +210,12 @@ GCC=gcc
 GXX=g++
 echo %{ix86}
 %ifarch %{ix86}
+%ifarch i486
+BuildFlags="-march=i486"
+%else
 BuildFlags="-march=core2 -mtune=atom"
 %endif
+%endif
 
 %ifnarch %{arm}
 BuildFlags="$BuildFlags -fasynchronous-unwind-tables"