--- git/configure.ac.orig	2006-05-22 22:40:00.000000000 +0200
+++ git/configure.ac	2006-06-10 15:10:14.000000000 +0200
@@ -1438,6 +1446,10 @@
     fi
     
-    # tslib...
+    AC_CHECK_HEADERS([tslib.h])
+    if test "$ac_cv_header_tslib_h" = yes; then
+        AC_DEFINE(TSLIB, 1, [Build kdrive with tslib support])
+        AC_DEFINE(TOUCHSCREEN, 1, [Build kdrive with touchscreen support])
+    fi
 
     # damage shadow extension glx (NOTYET) fb mi
     KDRIVE_INC='-I$(top_srcdir)/hw/kdrive/src'
@@ -1467,7 +1479,7 @@
 AC_SUBST(KDRIVE_CFLAGS)
 AC_SUBST(KDRIVE_PURE_LIBS)
 AC_SUBST(KDRIVE_LIBS)
-AM_CONDITIONAL(TSLIB, false)
+AM_CONDITIONAL(TSLIB, [test x"$ac_cv_header_tslib_h" = xyes])
 AM_CONDITIONAL(H3600_TS, false)
 AM_CONDITIONAL(KDRIVEVESA, [test x"$ac_cv_header_sys_vm86_h" = xyes])
 AM_CONDITIONAL(KDRIVEFBDEV, [test x"$ac_cv_header_linux_fb_h" = xyes])