AC_ARG_ENABLE([config-lib],

[AS_HELP_STRING([--disable-config-lib],

[do not build internal config library])],

[build_config_lib=$enableval],

[build_config_lib=yes])

AM_CONDITIONAL([BUILD_CONFIG_LIB],

[test x$build_config_lib = xyes])

AM_COND_IF([BUILD_CONFIG_LIB],

[AC_DEFINE_UNQUOTED(HAVE_CONFIG_LIB, 1,

[Build with internal config library])])