--- configure.ac.orig	2010-10-22 19:47:42.119099198 +0300
+++ configure.ac	2010-10-22 19:47:32.323369272 +0300
@@ -171,12 +171,17 @@
 AC_SUBST([LIBXML2_LIBS])
 
 dnl Check for OCaml (optional, for OCaml bindings).
+AC_ARG_ENABLE([ocaml],
+         AS_HELP_STRING([--enable-ocaml],[Enable ocaml binding]))
+
+
 AC_PROG_OCAML
 AC_PROG_FINDLIB
-AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLC" != "xno" -a "x$OCAMLFIND" != "xno"])
 
+
+
+AS_IF([test "x$enable_ocaml" != "xno"], [
 if test "x$OCAMLC" != "xno"; then
-    dnl Check if we have caml/unixsupport.h header (OCaml bindings only).
     old_CFLAGS="$CFLAGS"
     CFLAGS="$CFLAGS -I$OCAMLLIB"
     AC_CHECK_HEADERS([caml/unixsupport.h],[],[],
@@ -186,7 +191,7 @@
     ])
     CFLAGS="$old_CFLAGS"
 
-    dnl Do we have function caml_raise_with_args?
+dnl Do we have function caml_raise_with_args?
     f=caml_raise_with_args
     AC_MSG_CHECKING([for function $f])
     echo "char $f (); char foo() { return $f (); }" > conftest.c
@@ -195,37 +200,46 @@
     if $OCAMLOPT -c conftest.c 2>/dev/null && \
        $OCAMLOPT -c conftest_ml.ml 2>/dev/null && \
        $OCAMLOPT conftest.o conftest_ml.cmx -o conftest 2>/dev/null ; then
-        AC_DEFINE([HAVE_CAML_RAISE_WITH_ARGS],[1],
-                  [Defined if function caml_raise_with_args exists.])
-        AC_MSG_RESULT([found])
-    else
-        AC_MSG_RESULT([not found])
-    fi
-    rm -f conftest conftest.* conftest_ml.*
+        AC_DEFINE([HAVE_CAML_RAISE_WITH_ARGS],[1],  
+	    [Defined if function caml_raise_with_args exists.])
+       AC_MSG_RESULT([found])
+   else
+      AC_MSG_FAILURE([not found])
+
+   fi
+   rm -f conftest conftest.* conftest_ml.*
 fi
 
-dnl Check for Perl (optional, for Perl bindings).
-dnl XXX This isn't quite right, we should check for Perl devel library.
-AC_CHECK_PROG([PERL],[perl],[perl],[no])
+  ])
+
+AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLC" != "xno" -a "x$OCAMLFIND" != "xno" -a "x$enable_ocaml" != "xno"])
+
+dnl For Perl
 
-dnl Check for Perl modules that must be present to compile and
-dnl test the Perl bindings.
 missing_perl_modules=no
-for pm in Test::More ExtUtils::MakeMaker IO::Stringy; do
-    AC_MSG_CHECKING([for $pm])
-    if ! perl -M$pm -e1 >/dev/null 2>&1; then
-        AC_MSG_RESULT([no])
-        missing_perl_modules=yes
-    else
-        AC_MSG_RESULT([yes])
-    fi
-done
-if test "x$missing_perl_modules" = "xyes"; then
-    AC_MSG_WARN([some Perl modules required to compile or test the Perl bindings are missing])
-fi
+AC_ARG_ENABLE([perl],
+	AS_HELP_STRING([--with-perl],[build Perl binding]))
 
+PERL=
+AS_IF([test "x$enable_perl" != "xno" ],[
+	AC_CHECK_PROG([PERL],[perl],[yes],[no])
+
+    for pm in Test::More ExtUtils::MakeMaker IO::Stringy; do
+        AC_MSG_CHECKING([for $pm])
+        if ! perl -M$pm -e1 >/dev/null 2>&1; then
+            AC_MSG_RESULT([no])
+            missing_perl_modules=yes
+        else
+            AC_MSG_RESULT([yes])
+        fi
+    done
+
+    AS_IF([test "x$missing_perl_modules" = "xyes"],
+        [AC_MSG_FAILURE([some Perl modules required to compile or test the Perl bindings are missing])],
+	 )
+])
 AM_CONDITIONAL([HAVE_PERL],
-    [test "x$PERL" != "xno" -a "x$missing_perl_modules" != "xyes"])
+    [test "x$PERL" = "xyes" -a "x$missing_perl_modules" != "xyes" -a "x$enable_perl" = "xyes"])
 
 dnl dnl Check for Python (optional, for Python bindings).
 dnl AC_CHECK_PROG([PYTHON],[python],[python],[no])