-AC_ARG_WITH(ogg,[ --with-ogg=PFX Prefix where libogg is installed (optional)], ogg_prefix="$withval", ogg_prefix="")
-AC_ARG_WITH(ogg-libraries,[ --with-ogg-libraries=DIR Directory where libogg library is installed (optional)], ogg_libraries="$withval", ogg_libraries="")
-AC_ARG_WITH(ogg-includes,[ --with-ogg-includes=DIR Directory where libogg header files are installed (optional)], ogg_includes="$withval", ogg_includes="")
-AC_ARG_ENABLE(oggtest, [ --disable-oggtest Do not try to compile and run a test Ogg program],, enable_oggtest=yes)
+AC_ARG_WITH(ogg,AC_HELP_STRING([--with-ogg=PFX],[Prefix where libogg is installed (optional)]), ogg_prefix="$withval", ogg_prefix="")
+AC_ARG_WITH(ogg-libraries,AC_HELP_STRING([--with-ogg-libraries=DIR],[Directory where libogg library is installed (optional)]), ogg_libraries="$withval", ogg_libraries="")
+AC_ARG_WITH(ogg-includes,AC_HELP_STRING([--with-ogg-includes=DIR],[Directory where libogg header files are installed (optional)]), ogg_includes="$withval", ogg_includes="")
+AC_ARG_ENABLE(oggtest,AC_HELP_STRING([--disable-oggtest],[Do not try to compile and run a test Ogg program]),, enable_oggtest=yes)