Subject: [R] R-1.2.1 on Linux/Alpha with ccc/fort
From: Yoriaki FUJIMORI (fujimori@grafin.fujimori.cache.waseda.ac.jp)
Date: Wed 31 Jan 2001 - 03:52:37 EST
Message-Id: <200101300852.RAA19485@grafin.fujimori.cache.waseda.ac.jp>
Folks,
Some time ago, I asked about the success story of compiling
R on Linux/Alpha with Compaq's ccc/fort.
Recently, I grabed R-1.2.1 from CRAN, and tried to compile it.
I got a loadable R.bin, but `make test' reported several
errors. All of them seem to be a floating point number issue,
such as:
(1) In some cases, Alpha returns `-0.0' instead of `+0.0'.
(2) pgamma(Inf,1,xMax) is not evaluated as 1, but 0.6321206
(xMax is the machine maximum float in math.h.)
I tested several compile options of fort, but the situation does
not change. I have not yet looked into source files.
Except these points, R compiled by Compaq's compiler kit for Linux/Alpha
seems to run properly on the Linux/Alpha platform.
Configure.in should be rewritten, though.
# To be exact, I did the compilation on FreeBSD/Alpha with Linux emulator.
just a junk tip.
Yoriaki FUJIMORI
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