https://github.com/deniskropp/DirectFB/pull/6
https://bugs.gentoo.org/567294

From 5c7c4b197b9d04587b05624db4cfca6503adb3ff Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 8 Dec 2016 16:47:34 -0500
Subject: [PATCH] configure: fix tslib version check

The tslib version is 1.0, not 1.0.0.  Trying to check for the latter
fails when using pkg-config:
$ pkg-config --exists --print-errors "tslib-1.0 >= 1.0"
$ pkg-config --exists --print-errors "tslib-1.0 >= 1.0.0"
Requested 'tslib-1.0 >= 1.0.0' but version of tslib is 1.0
---
 configure.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index 6143cd393699..12a65fdc4f52 100644
--- a/configure.in
+++ b/configure.in
@@ -2561,7 +2561,7 @@ fi
 
 enable_tslib=no
 if test "$checkfor_tslib" = "yes"; then
-  PKG_CHECK_MODULES([TSLIB], [tslib-1.0 >= 1.0.0], [enable_tslib=yes], [enable_tslib=no])
+  PKG_CHECK_MODULES([TSLIB], [tslib-1.4 >= 1.4], [enable_tslib=yes], [enable_tslib=no])
   if test "$enable_tslib" = "no"; then
      PKG_CHECK_MODULES([TSLIB], [tslib-0.0], [enable_tslib=yes], [enable_tslib=no
        AC_MSG_WARN([*** no tslib -- tslib driver will not be built.])])
-- 
2.11.0.rc2
