dev-libs/libthai: new package

A a set of Thai language support routines

Package-Manager: Portage-3.0.20, Repoman-3.0.3
Signed-off-by: Huang Rui <vowstar@gmail.com>

dev-libs/libthai/files/libthai-0.1.28-fix-duplicate-dir.patch

@@ -0,0 +1,25 @@
+From 764c1750c18fc3fe4005fcb5b912ce9e39bc2b7f Mon Sep 17 00:00:00 2001
+From: Ross Burton <ross.burton@intel.com>
+Date: Mon, 23 Mar 2020 21:51:31 +0000
+Subject: [PATCH] configure.ac: remove duplicate AC_CONFIG_MACRO_DIR
+
+Autoconf 2.70 will fatally error out if AC_CONFIG_MACRO_DIR is called more than once:
+
+| configure.ac:25: error: AC_CONFIG_MACRO_DIR can only be used once
+---
+ configure.ac | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 913500a..1d174c5 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -22,8 +22,6 @@ AC_SUBST(LT_CURRENT)
+ AC_SUBST(LT_REVISION)
+ AC_SUBST(LT_AGE)
+ 
+-AC_CONFIG_MACRO_DIR([m4])
+-
+ DOXYGEN_REQ_VER=1.8.8
+ 
+ dnl Checks for programs.