--- xournal-0.4.5/configure.in.old	2010-02-16 09:23:51.000000000 -0700
+++ xournal-0.4.5/configure.in	2010-02-16 09:37:10.000000000 -0700
@@ -9,11 +9,14 @@
 AC_PROG_CC
 AM_PROG_CC_STDC
 AC_PROG_RANLIB
 AC_HEADER_STDC
 
-pkg_modules="gtk+-2.0 >= 2.10.0 libgnomecanvas-2.0 >= 2.4.0 poppler-glib >= 0.5.4"
+AC_CHECK_LIB([m],[sin])
+AC_CHECK_LIB([z],[gzclose])
+
+pkg_modules="gtk+-2.0 >= 2.10.0 libgnomecanvas-2.0 >= 2.4.0 poppler-glib >= 0.5.4 freetype2 x11"
 PKG_CHECK_MODULES(PACKAGE, [$pkg_modules])
 AC_SUBST(PACKAGE_CFLAGS)
 AC_SUBST(PACKAGE_LIBS)
 
 GETTEXT_PACKAGE=xournal