* AC_COMPILE_CHECK protects its ECHO-TEXT argument with double quotes.
** New or changed command line options:
-* configure accepts --enable-FEATURE[=VAL] and --disable-FEATURE options.
-* configure accepts --without-PACKAGE; giving --with-PACKAGE an
- argument is deprecated, and gives $withval a value of `yes' instead
- of `1' by default for --with-, and `no' for --without-.
+* configure accepts --enable-FEATURE[=ARG] and --disable-FEATURE options.
+* configure accepts --without-PACKAGE, which sets withval=no.
+* Giving --with-PACKAGE no argument sets withval=yes instead of 1.
* configure accepts --help, --version, --silent/--quiet options.
* configure accepts and ignores most other Cygnus configure options, and
warns about unknown options.