-BuildPrereq: bc, pam-devel, xorg-x11-devel
-BuildPrereq: gtk2-devel libglade2-devel
-Requires: /etc/pam.d/system-auth, htmlview, desktop-backgrounds-basic
+BuildRequires: bc
+BuildRequires: gettext
+BuildRequires: pam-devel
+BuildRequires: gtk2-devel
+BuildRequires: desktop-file-utils
+# Red Hat (pre-FC5):
+#BuildRequires: xorg-x11-devel
+#BuildRequires: libglade2-devel
+# Red Hat 5, CentOS5, FC5, and up:
+BuildRequires: xorg-x11-proto-devel
+BuildRequires: libglade2-devel
+# Mandrake:
+#BuildRequires: libxorg-x11-devel
+#BuildRequires: libglade2.0_0-devel
+Requires: SysVinit
+Requires: /etc/pam.d/system-auth
+Requires: htmlview
+Requires: desktop-backgrounds-basic