diff --git a/xz.changes b/xz.changes
index 835b1ea..0ba81e5 100644
--- a/xz.changes
+++ b/xz.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Dec  7 18:47:04 UTC 2010 - cristian.rodriguez@opensuse.org
+
+- Use compiler profile information, makes xz marginally faster
+  (around 1-2 secs)
+
 -------------------------------------------------------------------
 Sat Oct 30 20:17:49 UTC 2010 - jengelh@medozas.de
 
diff --git a/xz.spec b/xz.spec
index eee7577..8526b9e 100644
--- a/xz.spec
+++ b/xz.spec
@@ -20,7 +20,7 @@
 Name:           xz
 Summary:        A Program for Compressing Files
 Version:        5.0.0
-Release:        1
+Release:        2
 Group:          Productivity/Archiving/Compression
 License:        LGPLv2.1+
 Url:            http://tukaani.org/lzma/
@@ -80,11 +80,23 @@ compiling programs using the LZMA library.
 
 %build
 AUTOPOINT=true autoreconf -fiv
+%if %{do_profiling}
+profiledir=$(mktemp -d)
+trap "rm -rf $profiledir" EXIT
+export CFLAGS="%optflags %{cflags_profile_generate}=$profiledir"
+%endif
 %configure --libdir=/%{_lib} --disable-static --with-pic --docdir=%_docdir/%name
 make %{?_smp_mflags}
+%if %{do_profiling}
+time make check
+make clean
+export CFLAGS="%optflags %{cflags_profile_feedback}=$profiledir"
+%configure --libdir=/%{_lib} --disable-static --with-pic --docdir=%_docdir/%name
+make %{?_smp_mflags}
+%endif
 
 %check
-LD_LIBRARY_PATH=$PWD/src/liblzma/.libs make check
+time make check
 
 %install
 make install DESTDIR=$RPM_BUILD_ROOT