diff --git a/configure.in b/configure.in
index 0e44011..254d1da 100644
--- a/configure.in
+++ b/configure.in
@@ -430,16 +430,6 @@ echo CMU Flite found in $FLITEDIR
 AC_SUBST(FLITEDIR)
 
 dnl
-dnl SDL support
-dnl
-if ! test -f /usr/include/SDL/SDL.h; then
-    AC_MSG_ERROR("Cannot locate /usr/include/SDL/SDL.h.")
-fi
-if ! test -f /usr/include/SDL/SDL_ttf.h; then
-    AC_MSG_ERROR("Cannot locate /usr/include/SDL/SDL_ttf.h.")
-fi
-
-dnl
 dnl Find a font.
 dnl
 if test "x$DEFAULTFONT" = "x"