+dnl Readline.
+AC_ARG_WITH([readline],
+ [AS_HELP_STRING([--with-readline],
+ [support fancy command line editing @<:@default=check@:>@])],
+ [],
+ [with_readline=check])
+
+LIBREADLINE=
+AS_IF([test "x$with_readline" != xno],
+ [AC_CHECK_LIB([readline], [main],
+ [AC_SUBST([LIBREADLINE], ["-lreadline -lncurses"])
+ AC_DEFINE([HAVE_LIBREADLINE], [1],
+ [Define if you have libreadline])
+ ],
+ [if test "x$with_readline" != xcheck; then
+ AC_MSG_FAILURE(
+ [--with-readline was given, but test for readline failed])
+ fi
+ ], -lncurses)])
+
+dnl Check for OCaml (optional, for OCaml bindings).
+AC_PROG_OCAML
+AC_PROG_FINDLIB
+AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLC" != "xno" -a "x$OCAMLFIND" != "xno"])
+
+dnl Check for Perl (optional, for Perl bindings).
+dnl XXX This isn't quite right, we should check for devel libraries.
+AC_CHECK_PROG([PERL],[perl],[perl],[no])
+AM_CONDITIONAL([HAVE_PERL],[test "x$PERL" != "xno"])
+
+dnl Check for Python (optional, for Python bindings).
+AC_CHECK_PROG([PYTHON],[python],[python],[no])
+
+PYTHON_PREFIX=
+PYTHON_VERSION=
+PYTHON_INCLUDEDIR=
+PYTHON_SITE_PACKAGES=
+
+if test "x$PYTHON" != "xno"; then
+ PYTHON_PREFIX=`$PYTHON -c "import sys; print sys.prefix"`
+ PYTHON_VERSION=`$PYTHON -c "import sys; print sys.version[[0:3]]"`
+ for d in \
+ $PYTHON_PREFIX/include/python$PYTHON_VERSION \
+ /usr/include/python$PYTHON_VERSION \
+ /usr/local/include/python$PYTHON_VERSION
+ do
+ AC_MSG_CHECKING([Python.h in $d])
+ if test -r "$d/Python.h"; then
+ AC_MSG_RESULT([found])
+ PYTHON_INCLUDEDIR=$d
+ break
+ fi
+ AC_MSG_RESULT([not found])
+ done
+ for d in \
+ $PYTHON_PREFIX/lib64/python$PYTHON_VERSION/site-packages \
+ $PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages \
+ /usr/lib64/python$PYTHON_VERSION/site-packages \
+ /usr/lib/python$PYTHON_VERSION/site-packages \
+ /usr/local/lib/python$PYTHON_VERSION/site-packages
+ do
+ AC_MSG_CHECKING([for $d])
+ if test -d "$d"; then
+ AC_MSG_RESULT([found])
+ PYTHON_SITE_PACKAGES=$d
+ break
+ fi
+ AC_MSG_RESULT([not found])
+ done
+fi
+
+AC_SUBST(PYTHON_PREFIX)
+AC_SUBST(PYTHON_VERSION)
+AC_SUBST(PYTHON_INCLUDEDIR)
+AC_SUBST(PYTHON_SITE_PACKAGES)
+
+AM_CONDITIONAL([HAVE_PYTHON],
+ [test "x$PYTHON_INCLUDEDIR" != "x" -a "x$PYTHON_SITE_PACKAGES" != "x"])
+
+dnl Check for Ruby and rake (optional, for Ruby bindings).
+old_libs="$LIBS"
+AC_CHECK_LIB([ruby],[ruby_init])
+LIBS="$old_libs"
+AC_CHECK_PROG([RAKE],[rake],[rake],[no])
+
+AM_CONDITIONAL([HAVE_RUBY],
+ [test "x$RAKE" != "xno" -a -n "x$HAVE_LIBRUBY"])
+