diff --git a/lib/alterl/build/otp.mk b/lib/alterl/build/otp.mk
new file mode 100644
index 0000000..1d16e2c
--- /dev/null
+++ b/lib/alterl/build/otp.mk
@@ -0,0 +1,146 @@
+# +----------------------------------------------------------------------+
+# $Id: otp.mk,v 1.4 2004/07/01 14:57:10 tfee Exp $
+# +----------------------------------------------------------------------+
+
+# otp.mk
+# - to be included in all OTP Makefiles
+# installed to /usr/local/include/erlang/otp.mk
+
+# gmake looks in /usr/local/include - that's hard-coded
+# users of this file will use
+# include erlang/top.mk
+
+# most interface files will be installed to $ERL_RUN_TOP/app-vsn/include/*.hrl
+
+# group owner for library/include directories
+ERLANGDEV_GROUP=erlangdev
+
+# ERL_TOP is root of Erlang source tree
+# ERL_RUN_TOP is root of Erlang target tree (some Ericsson Makefiles use $ROOT)
+# ERLANG_OTP is target root for Erlang code
+# - see sasl/systools reference manual page; grep "TEST"
+
+# OS_TYPE is FreeBSD, NetBSD, OpenBSD, Linux, SCO_SV, SunOS.
+OS_TYPE=${shell uname}
+
+# MHOST is the host where this Makefile runs.
+MHOST=${shell hostname -s}
+ERL_COMPILE_FLAGS+=-W0
+
+# The location of the erlang runtime system.
+ifndef ERL_RUN_TOP
+ERL_RUN_TOP=/usr/local/lib/erlang
+endif
+
+
+# Edit to reflect local environment.
+# ifeq (${OS_TYPE},Linux)
+# ERL_RUN_TOP=/usr/local/lib/erlang
+#  Note* ERL_RUN_TOP can be determined by starting an
+#        erlang shell and typing code:root_dir().
+# ERL_TOP=a symbolic link to the actual source top, which changes from version to version
+#  Note* ERL_TOP is the directory where the erlang
+#        source files reside. Make sure to run ./configure there.
+# TARGET=i686-pc-linux-gnu
+#  Note* Target can be found in $ERL_TOP/erts
+# endif
+
+# See above for directions.
+ifeq (${OS_TYPE},Linux)
+ERL_TOP=/opt/OTP_SRC
+TARGET=i686-pc-linux-gnu
+endif
+
+ERLANG_OTP=/usr/local/erlang/otp
+VAR_OTP=/var/otp
+
+
+# Aliases for common binaries
+# Note - CFLAGS is modified in erlang.conf
+
+
+################################
+# SunOS
+################################
+ifeq (${OS_TYPE},SunOS)
+
+    CC=gcc
+    CXX=g++
+    AR=/usr/ccs/bin/ar
+    ARFLAGS=-rv
+    CXXFLAGS+=${CFLAGS} -I/usr/include/g++
+    LD=/usr/ccs/bin/ld
+    RANLIB=/usr/ccs/bin/ranlib
+
+CFLAGS+=-Wall -pedantic -ansi -O
+CORE=*.core
+endif
+
+
+################################
+# FreeBSD
+################################
+ifeq (${OS_TYPE},FreeBSD)
+
+  ifdef LINUXBIN
+    COMPAT_LINUX=/compat/linux
+    CC=${COMPAT_LINUX}/usr/bin/gcc
+    CXX=${COMPAT_LINUX}/usr/bin/g++
+    AR=${COMPAT_LINUX}/usr/bin/ar
+    ARFLAGS=-rv
+    CXXFLAGS+=-fhandle-exceptions ${CFLAGS} -I${COMPAT_LINUX}/usr/include/g++
+    LD=${COMPAT_LINUX}/usr/bin/ld
+    RANLIB=${COMPAT_LINUX}/usr/bin/ranlib
+	BRANDELF=brandelf -t Linux
+  else
+    CC=gcc
+    CXX=g++
+    AR=/usr/bin/ar
+    ARFLAGS=-rv
+    CXXFLAGS+=-fhandle-exceptions ${CFLAGS} -I/usr/include/g++
+    LD=/usr/bin/ld
+    RANLIB=/usr/bin/ranlib
+	BRANDELF=@true
+
+    ifdef USES_PTHREADS
+      CFLAGS+=-D_THREAD_SAFE
+      LDFLAGS+=-lc_r
+
+	  # -pthread flag for 3.0+
+	  ifneq (${shell uname -r | cut -d. -f1},2)
+		CFLAGS+=-pthread
+	  endif
+    endif
+  endif
+
+CFLAGS+=-Wall -pedantic -ansi -O -DFREEBSD
+CORE=*.core
+endif
+
+################################
+# OpenBSD
+################################
+ifeq (${OS_TYPE},OpenBSD)
+
+    CC=gcc
+    CXX=g++
+    AR=/usr/bin/ar
+    ARFLAGS=-rv
+    CXXFLAGS+=${CFLAGS} -I/usr/include/g++
+    LD=/usr/bin/ld
+    RANLIB=/usr/bin/ranlib
+
+    ifdef USES_PTHREADS
+      CFLAGS+=-D_THREAD_SAFE
+      LDFLAGS+=-lc_r
+
+	  # -pthread flag for 3.0+
+	  ifneq (${shell uname -r | cut -d. -f1},2)
+		CFLAGS+=-pthread
+	  endif
+    endif
+
+CFLAGS+=-Wall -pedantic -ansi -O -DOPENBSD
+CORE=*.core
+endif
+