+`--without-lib{xx}'
+ Optional libraries should normally be detected and the relevant
+ functionality will be built they exist. However, on some poorly
+ configured systems a library may exist, but be totally broken.
+ In these cases you can use --without-lib{xx} to force configure
+ to disregard it.
+
+`--enable-anachronistic-dependencies'
+ If you use this option, some of the checks for dependent libraries
+ will be relaxed, permitting configure to succeed when older versions
+ of libraries are detected. Use of this option is not recommended.
+ If you use it, some features may be missing and the build may fail
+ with obscure error messages.
+