+/^#undef HAVE_WCHAR_H *$/s/^.*$/#define HAVE_WCHAR_H 1/
+/^#undef DEVICE_SEP *$/s/^.*$/#define DEVICE_SEP ':'/
+/^#undef IS_DIRECTORY_SEP *$/s,^.*$,#define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\\\'),
+/^#undef IS_DEVICE_SEP *$/s/^.*$/#define IS_DEVICE_SEP(_c_) ((_c_) == ':')/
+/^#undef IS_ANY_SEP *$/s/^.*$/#define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))/
+/^#undef INTERNAL_TERMINAL *$/s,^.*$,#define INTERNAL_TERMINAL "pc|bios|IBM PC with color display::co#80:li#25:Co#16:pa#256:km:ms:cm=<CM>:cl=<CL>:ce=<CE>::se=</SO>:so=<SO>:us=<UL>:ue=</UL>:md=<BD>:mh=<DIM>:mb=<BL>:mr=<RV>:me=<NV>::AB=<BG %d>:AF=<FG %d>:op=<DefC>:",
+/^#undef NULL_DEVICE *$/s/^.*$/#define NULL_DEVICE "nul"/
+/^#undef SEPCHAR *$/s/^.*$/#define SEPCHAR '\;'/
+/^#undef USER_FULL_NAME *$/s/^.*$/#define USER_FULL_NAME (getenv ("NAME"))/