-Source0: ftp://prep.ai.mit.edu/pub/gnu/flex/%{name}-%{version}.tar.gz
-Patch0: flex-info.patch
-Patch1: flex-skel.patch
-BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
+Source0: ftp://prep.ai.mit.edu/pub/non-gnu/flex/%{name}-%{version}.tar.gz
+Patch0: %{name}-info.patch
+Patch1: %{name}-skel.patch
+Patch2: %{name}-glibc22.patch
+BuildRequires: autoconf