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dnl ##############################################################################
dnl # AC_LIBMODBUS_CHECK_BUILD_DOC #
dnl # Check whether to build documentation and install man-pages #
dnl ##############################################################################
AC_DEFUN([AC_LIBMODBUS_CHECK_BUILD_DOC], [{
# Allow user to disable doc build
AC_ARG_WITH([documentation], [AS_HELP_STRING([--without-documentation],
[disable documentation build even if asciidoc and xmlto are present [default=no]])])
if test "x$with_documentation" = "xno"; then
ac_libmodbus_build_doc="no"
else
# Determine whether or not documentation should be built and installed.
ac_libmodbus_build_doc="yes"
# Check for asciidoc and xmlto and don't build the docs if these are not installed.
AC_CHECK_PROG(ac_libmodbus_have_asciidoc, asciidoc, yes, no)
AC_CHECK_PROG(ac_libmodbus_have_xmlto, xmlto, yes, no)
if test "x$ac_libmodbus_have_asciidoc" = "xno" -o "x$ac_libmodbus_have_xmlto" = "xno"; then
ac_libmodbus_build_doc="no"
fi
fi
AC_MSG_CHECKING([whether to build documentation])
AC_MSG_RESULT([$ac_libmodbus_build_doc])
if test "x$ac_libmodbus_build_doc" = "xno"; then
AC_MSG_WARN([The tools to build the documentation aren't installed])
fi
AM_CONDITIONAL(BUILD_DOC, test "x$ac_libmodbus_build_doc" = "xyes")
}])