Re: msys : convert datadir to windows directory syntax

[Keith Marshall]

On Tuesday 04 September 2007 16:21, Vincent Torri wrote:
> I'll try AC_DEFINE_DIR with the macro that Keith gave me.

If you do, then you should be aware that AC_DEFINE_DIR, which is not a 
standard autoconf builtin macro, (in spite of its apparent assignment 
to the AC namespace), depends on exactly the same undocumented autoconf 
internals as the solution I suggested earlier.  As an example of the 
type of breakage I referred to then, the original formulation of 
AC_DEFINE_DIR broke when autoconf added `datarootdir', requiring an 
extra round of `eval' to resolve `$datadir', for example.

This sort of definition is fragile, for precisely this reason; it will 
break again, if a future autoconf version chooses to add yet another 
level of indirection, for some definition you just happen to want to 
resolve, when you invoke its expansion in the configure script.

Regards,
Keith.