Bruno Haible <[EMAIL PROTECTED]> writes: > Simon Josefsson wrote: >> > +# Prerequisites of lib/uinttostr.c. >> > +AC_DEFUN([gl_PREREQ_UINTTOSTR], [:]) >> >> What are these dummy functions useful for, anyway? > > They separate the autoconf macros needed to determine _when_ to enable a > replacement from the autoconf macros needed for compiling the replacement. > The purpose is that when you change the source code of the .c file you need > to proofread only half of the implementation. > > Also, sometimes we use the same .c file in two different modules; here also > it helps.
Ok. That doesn't explain the empty functions, but I reckon they are used place-holders as others have suggested? I've felt silly to add the empty function for some trivial modules. /Simon
