all those pesky math functions

[Gabriel Dos Reis]

Benjamin Kosnik <bkoz@redhat.com> writes:

| > Checking for those functions consumes much of the time spent in
| > 'configure'.  Are those checks the kind that can be safely cached?
| > I'm thinking specifically of the DECL_AND_LINKAGE checks (I just now
| > saw that rewrite; it's very elegant).
| 
| This stuff is not likely to change so yeah. Try to cache it if you can.

I agree with you.

But IIRC, there was a report that under soome obscure circumstances we
detected some signatures that were no longer present once the library
is built.  I don't know how that affects caching though.

-- Gaby