diff --git a/contrib/fb303/acinclude.m4 b/contrib/fb303/acinclude.m4
new file mode 100644
index 0000000..faafba6
--- /dev/null
+++ b/contrib/fb303/acinclude.m4
@@ -0,0 +1,258 @@
+dnl Copyright (C) 2009 Facebook
+dnl Copying and distribution of this file, with or without modification,
+dnl are permitted in any medium without royalty provided the copyright
+dnl notice and this notice are preserved.
+
+AC_DEFUN([FB_INITIALIZE],
+[
+AM_INIT_AUTOMAKE([ foreign 1.9.5 no-define ])
+if test "x$1" = "xlocalinstall"; then
+wdir=`pwd`
+# To use $wdir undef quote.
+#
+##########
+AC_PREFIX_DEFAULT([`pwd`/install])
+echo
+fi
+AC_PROG_CC
+AC_PROG_CXX
+AC_PROG_RANLIB(RANLIB, ranlib)
+AC_PATH_PROGS(BASH, bash)
+AC_PATH_PROGS(PERL, perl)
+AC_PATH_PROGS(PYTHON, python)
+AC_PATH_PROGS(AR, ar)
+AC_PATH_PROGS(ANT, ant)
+PRODUCT_MK=""
+])
+
+AC_DEFUN([FB_WITH_EXTERNAL_PATH],
+[
+cdir=`pwd`
+AC_MSG_CHECKING([Checking EXTERNAL_PATH set to])
+AC_ARG_WITH([externalpath],
+  [ --with-externalpath=DIR User specified path to external facebook components.],
+  [
+    if test "x${EXTERNAL_PATH}" != "x"; then
+       echo ""
+       echo "ERROR: You have already set EXTERNAL_PATH in your environment"
+       echo "Cannot override it using --with-externalpath. Unset EXTERNAL_PATH to use this option"
+       exit 1
+    fi
+    EXTERNAL_PATH=$withval
+  ],
+  [
+    if test "x${EXTERNAL_PATH}" = "x"; then
+       EXTERNAL_PATH=$1
+    fi
+  ]
+)
+if test "x${EXTERNAL_PATH}" = "x"; then
+   export EXTERNAL_PATH="$cdir/external"
+   GLOBAL_HEADER_MK="include ${EXTERNAL_PATH}/global_header.mk"
+   GLOBAL_FOOTER_MK="include ${EXTERNAL_PATH}/global_footer.mk"
+else
+   export EXTERNAL_PATH
+   GLOBAL_HEADER_MK="include ${EXTERNAL_PATH}/global_header.mk"
+   GLOBAL_FOOTER_MK="include ${EXTERNAL_PATH}/global_footer.mk"
+fi
+AC_MSG_RESULT($EXTERNAL_PATH)
+if test ! -d ${EXTERNAL_PATH}; then
+       echo ""
+       echo "ERROR: EXTERNAL_PATH set to an nonexistent directory ${EXTERNAL_PATH}"
+       exit 1
+fi
+AC_SUBST(EXTERNAL_PATH)
+AC_SUBST(GLOBAL_HEADER_MK)
+AC_SUBST(GLOBAL_FOOTER_MK)
+])
+
+# Set option to enable shared mode. Set DEBUG and OPT for use in Makefile.am.
+AC_DEFUN([FB_ENABLE_DEFAULT_OPT_BUILD],
+[
+AC_MSG_CHECKING([whether to enable optimized build])
+AC_ARG_ENABLE([opt],
+  [  --disable-opt     Set up debug mode.],
+  [
+     ENABLED_OPT=$enableval
+  ],
+  [
+     ENABLED_OPT="yes"
+  ]
+)
+if test "$ENABLED_OPT" = "yes"
+then
+     CFLAGS="-Wall -O3"
+     CXXFLAGS="-Wall -O3"
+else
+     CFLAGS="-Wall -g"
+     CXXFLAGS="-Wall -g"
+fi
+AC_MSG_RESULT($ENABLED_OPT)
+AM_CONDITIONAL([OPT], [test "$ENABLED_OPT" = yes])
+AM_CONDITIONAL([DEBUG], [test "$ENABLED_OPT" = no])
+])
+
+# Set option to enable debug mode. Set DEBUG and OPT for use in Makefile.am.
+AC_DEFUN([FB_ENABLE_DEFAULT_DEBUG_BUILD],
+[
+AC_MSG_CHECKING([whether to enable debug build])
+AC_ARG_ENABLE([debug],
+  [  --disable-debug     Set up opt mode.],
+  [
+     ENABLED_DEBUG=$enableval
+  ],
+  [
+     ENABLED_DEBUG="yes"
+  ]
+)
+if test "$ENABLED_DEBUG" = "yes"
+then
+     CFLAGS="-Wall -g"
+     CXXFLAGS="-Wall -g"
+else
+     CFLAGS="-Wall -O3"
+     CXXFLAGS="-Wall -O3"
+fi
+AC_MSG_RESULT($ENABLED_DEBUG)
+AM_CONDITIONAL([DEBUG], [test "$ENABLED_DEBUG" = yes])
+AM_CONDITIONAL([OPT], [test "$ENABLED_DEBUG" = no])
+])
+
+# Set option to enable static libs.
+AC_DEFUN([FB_ENABLE_DEFAULT_STATIC],
+[
+SHARED=""
+STATIC=""
+AC_MSG_CHECKING([whether to enable static mode])
+AC_ARG_ENABLE([static],
+  [  --disable-static     Set up shared mode.],
+  [
+     ENABLED_STATIC=$enableval
+  ],
+  [
+     ENABLED_STATIC="yes"
+  ]
+)
+if test "$ENABLED_STATIC" = "yes"
+then
+     LTYPE=".a"
+else
+     LTYPE=".so"
+     SHARED_CXXFLAGS="-fPIC"
+     SHARED_CFLAGS="-fPIC"
+     SHARED_LDFLAGS="-shared -fPIC"
+     AC_SUBST(SHARED_CXXFLAGS)
+     AC_SUBST(SHARED_CFLAGS)
+     AC_SUBST(SHARED_LDFLAGS)
+fi
+AC_MSG_RESULT($ENABLED_STATIC)
+AC_SUBST(LTYPE)
+AM_CONDITIONAL([STATIC], [test "$ENABLED_STATIC" = yes])
+AM_CONDITIONAL([SHARED], [test "$ENABLED_STATIC" = no])
+])
+
+# Set option to enable shared libs.
+AC_DEFUN([FB_ENABLE_DEFAULT_SHARED],
+[
+SHARED=""
+STATIC=""
+AC_MSG_CHECKING([whether to enable shared mode])
+AC_ARG_ENABLE([shared],
+  [  --disable-shared     Set up static mode.],
+  [
+    ENABLED_SHARED=$enableval
+  ],
+  [
+     ENABLED_SHARED="yes"
+  ]
+)
+if test "$ENABLED_SHARED" = "yes"
+then
+     LTYPE=".so"
+     SHARED_CXXFLAGS="-fPIC"
+     SHARED_CFLAGS="-fPIC"
+     SHARED_LDFLAGS="-shared -fPIC"
+     AC_SUBST(SHARED_CXXFLAGS)
+     AC_SUBST(SHARED_CFLAGS)
+     AC_SUBST(SHARED_LDFLAGS)
+else
+     LTYPE=".a"
+fi
+AC_MSG_RESULT($ENABLED_SHARED)
+AC_SUBST(LTYPE)
+AM_CONDITIONAL([SHARED], [test "$ENABLED_SHARED" = yes])
+AM_CONDITIONAL([STATIC], [test "$ENABLED_SHARED" = no])
+])
+
+# Generates define flags and conditionals as specified by user.
+# This gets enabled *only* if user selects --enable-<FEATURE> otion.
+AC_DEFUN([FB_ENABLE_FEATURE],
+[
+ENABLE=""
+flag="$1"
+value="$3"
+AC_MSG_CHECKING([whether to enable $1])
+AC_ARG_ENABLE([$2],
+  [  --enable-$2     Enable $2.],
+  [
+     ENABLE=$enableval
+  ],
+  [
+     ENABLE="no"
+  ]
+)
+AM_CONDITIONAL([$1], [test "$ENABLE" = yes])
+if test "$ENABLE" = "yes"
+then
+   if test "x${value}" = "x"
+   then
+       AC_DEFINE([$1])
+   else
+       AC_DEFINE_UNQUOTED([$1], [$value])
+   fi
+fi
+AC_MSG_RESULT($ENABLE)
+])
+
+
+# can also use eval $2=$withval;AC_SUBST($2)
+AC_DEFUN([FB_WITH_PATH],
+[
+USRFLAG=""
+USRFLAG=$1
+AC_MSG_CHECKING([Checking $1 set to])
+AC_ARG_WITH([$2],
+  [ --with-$2=DIR User specified path.],
+  [
+    LOC=$withval
+    eval $USRFLAG=$withval
+  ],
+  [
+    LOC=$3
+    eval $USRFLAG=$3
+  ]
+)
+AC_SUBST([$1])
+AC_MSG_RESULT($LOC)
+])
+
+AC_DEFUN([FB_SET_FLAG_VALUE],
+[
+SETFLAG=""
+AC_MSG_CHECKING([Checking $1 set to])
+SETFLAG=$1
+eval $SETFLAG=\"$2\"
+AC_SUBST([$SETFLAG])
+AC_MSG_RESULT($2)
+])
+
+# NOTES
+# if using if else bourne stmt you must have more than a macro in it.
+# EX1 is not correct. EX2 is correct
+# EX1: if test "$XX" = "yes"; then
+#        AC_SUBST(xx)
+#      fi
+# EX2: if test "$XX" = "yes"; then
+#        xx="foo"
+#        AC_SUBST(xx)
+#      fi