AC_CHECK_SIZEOF([long])
dnl Headers.
-AC_CHECK_HEADERS([endian.h byteswap.h])
+AC_CHECK_HEADERS([byteswap.h endian.h libintl.h])
+
+dnl Functions.
+AC_CHECK_FUNCS([bindtextdomain])
dnl Check for pod2man and pod2text.
AC_CHECK_PROG([POD2MAN],[pod2man],[pod2man],[no])