[Rd] make check-all fails (PR#7784)

[znmeb at cesmail.net]

Full_Name: Ed Borasky
Version: R-beta 2.1.0 2005-04-08
OS: Linux 2.6.11 GCC 3.3.5
Submission from: (NULL) (24.21.57.139)


I downloaded the latest R-beta tarball and did a build with the default options.
OS is Linux 2.6.11 and compiler is GCC 3.3.5. "make check-all" failed with the
following message:

make[3]: Entering directory `/home/znmeb/R-beta/tests'
running code in 'reg-tests-1.R' ...make[3]: *** [reg-tests-1.Rout] Error 1
make[3]: Leaving directory `/home/znmeb/R-beta/tests'
make[2]: *** [test-Reg] Error 2
make[2]: Leaving directory `/home/znmeb/R-beta/tests'
make[1]: *** [test-all-basics] Error 1
make[1]: Leaving directory `/home/znmeb/R-beta/tests'
make: *** [check-all] Error 2

I looked at "tests/reg-tests-1.Rout.fail"; it's 1427 lines long. The error given
is

> ## Comments:
>
>
> ## PR 796 (aic in binomial models is often wrong)
> ##
> a1 <- glm(cbind(ncases, ncontrols) ~ agegp + tobgp * alcgp,
+     data = esoph, family = binomial())$aic
> a1
[1] 236.9645
> a2 <- glm(ncases/(ncases+ncontrols) ~ agegp + tobgp * alcgp,
+     data = esoph, family = binomial(), weights=ncases+ncontrols)$aic
> a2
[1] 236.9645
> stopifnot(a1 == a2)
Error: a1 == a2 is not TRUE
Execution halted

I am running on an Athlon Thunderbird with Atlas 3.6.0 installed. If necessary,
I can back Atlas out and run this again.