diff --git a/weston.spec b/weston.spec
index 1c6dad9..adc4949 100644
--- a/weston.spec
+++ b/weston.spec
@@ -105,6 +105,7 @@ if [ ! -e configure ]; then
 	autoreconf -fi
 fi
 # Ensure people will use pkgconfig to locate headers.
+# Implicit enable-libunwind would make the tests run endlessly on i586.
 %configure --disable-static --includedir="%_includedir/pkg/%name" \
 	--disable-setuid-install --disable-libunwind
 make %{?_smp_mflags}