diff --git a/programming/misc/btyacc/actions.py b/programming/misc/btyacc/actions.py
new file mode 100644
index 0000000000..3572e95b0a
--- /dev/null
+++ b/programming/misc/btyacc/actions.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+#
+# Licensed under the GNU General Public License, version 3.
+# See the file http://www.gnu.org/licenses/gpl.txt
+
+from pisi.actionsapi import autotools
+from pisi.actionsapi import pisitools
+from pisi.actionsapi import shelltools
+from pisi.actionsapi import get
+
+WorkDir = "."
+
+def setup():
+    pisitools.dosed("main.c", "len + 13", "len + 14")
+
+def build():
+    autotools.make()
+
+def install():
+    pisitools.dobin("btyacc")
+    pisitools.newman("manpage", "btyacc.1")
+    pisitools.dodoc("README*")
diff --git a/programming/misc/btyacc/files/btyacc-3.0-includes.patch b/programming/misc/btyacc/files/btyacc-3.0-includes.patch
new file mode 100644
index 0000000000..e415574213
--- /dev/null
+++ b/programming/misc/btyacc/files/btyacc-3.0-includes.patch
@@ -0,0 +1,10 @@
+--- a/mstring.c
++++ b/mstring.c
+@@ -1,6 +1,7 @@
+ #include <stdlib.h>
+ #include <stdio.h>
+ #include <stdarg.h>
++#include <string.h>
+ #include <ctype.h>
+ #include "mstring.h"
+ 
diff --git a/programming/misc/btyacc/files/btyacc-3.0-makefile.patch b/programming/misc/btyacc/files/btyacc-3.0-makefile.patch
new file mode 100644
index 0000000000..60187256d1
--- /dev/null
+++ b/programming/misc/btyacc/files/btyacc-3.0-makefile.patch
@@ -0,0 +1,22 @@
+Respect CC, append to CFLAGS (but not -g), append to LDFLAGS, use system LD -jer
+
+--- a/Makefile	1999-07-15 19:40:12.000000000 +0200
++++ b/Makefile	2009-09-04 15:27:15.000000000 +0200
+@@ -8,14 +8,13 @@
+ 
+ HDRS	      = defs.h mstring.h
+ 
+-CFLAGS	      = -g -Wall -Wstrict-prototypes -Wmissing-prototypes
++CFLAGS	      += -Wall -Wstrict-prototypes -Wmissing-prototypes
+ 
+-LDFLAGS	      = -static
++LDFLAGS	      += -static
+ 
+ LIBS	      =
+ 
+-CC	      = gcc
+-LINKER	      = gcc
++LINKER	      = $(CC)
+ # LINKER      = cl
+ # CC	      = cl
+ 
diff --git a/programming/misc/btyacc/pspec.xml b/programming/misc/btyacc/pspec.xml
new file mode 100644
index 0000000000..3c9d763f75
--- /dev/null
+++ b/programming/misc/btyacc/pspec.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" ?>
+<!DOCTYPE PISI SYSTEM "http://www.pisilinux.org/projeler/pisi/pisi-spec.dtd">
+<PISI>
+    <Source>
+        <Name>btyacc</Name>
+        <Homepage>http://www.siber.com/btyacc</Homepage>
+        <Packager>
+            <Name>PisiLinux Community</Name>
+            <Email>admins@pisilinux.org</Email>
+        </Packager>
+        <License>freedist</License>
+        <IsA>app:console</IsA>
+        <Summary>Backtracking YACC - modified from Berkeley YACC</Summary>
+        <Description>This is original Berkeley Yacc modified to better fit production environment (and to have less bugs, too).</Description>
+        <Archive sha1sum="4a70f78d9695fa1101c49ab1cdbfda5ab740c027" type="targz">http://www.siber.com/btyacc/btyacc-3-0.tar.gz</Archive>
+        <Patches>
+            <Patch level="1">btyacc-3.0-includes.patch</Patch>
+            <Patch level="1">btyacc-3.0-makefile.patch</Patch>
+        </Patches>
+    </Source>
+
+    <Package>
+        <Name>btyacc</Name>
+        <Files>
+            <Path fileType="executable">/usr/bin</Path>
+            <Path fileType="man">/usr/share/man</Path>
+            <Path fileType="doc">/usr/share/doc</Path>
+        </Files>
+    </Package>
+
+    <History>
+        <Update release="3">
+            <Date>2014-05-11</Date>
+            <Version>3.0</Version>
+            <Comment>Release bump.</Comment>
+            <Name>Marcin Bojara</Name>
+            <Email>marcin@pisilinux.org</Email>
+        </Update>
+        <Update release="2">
+            <Date>2013-11-13</Date>
+            <Version>3.0</Version>
+            <Comment>Release bump.</Comment>
+            <Name>Serdar Soytetir</Name>
+            <Email>kaptan@pisilinux.org</Email>
+        </Update>
+        <Update release="1">
+            <Date>2012-10-15</Date>
+            <Version>3.0</Version>
+            <Comment>First release</Comment>
+            <Name>Marcin Bojara</Name>
+            <Email>marcin@pisilinux.org</Email>
+        </Update>
+    </History>
+</PISI>