Date: Mon, 07 Feb 2011 22:17:27 +0100 From: Rainer Hurling <rhurlin@gwdg.de> To: bf1783@gmail.com Cc: freebsd-standards@FreeBSD.org Subject: Re: Support for C99 complex type required Message-ID: <4D506167.4020408@gwdg.de> In-Reply-To: <AANLkTi=o-Ptw%2B6cANs-m=Ny33Ys32gBhNw_9WAcc_T6H@mail.gmail.com> References: <AANLkTi=o-Ptw%2B6cANs-m=Ny33Ys32gBhNw_9WAcc_T6H@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 07.02.2011 20:02 (UTC+1), b. f. wrote: >> For more than a decade now it was possible to install the statistical >> program R (http://cran.r-project.org/) from the sources, even without >> patching. Since fortran was removed from the system, lang/gcc44 or >> lang/gcc45 has to be installed before. In addition a nice port exists >> for years now: math/R. >> >> With the new development version of R >> >> ftp://ftp.stat.math.ethz.ch/Software/R/R-devel.tar.gz >> >> the configure script stops complaining about missing C99 complex types. >> This is reproducable with only untaring the sources and starting >> configure script in R-devel with ./configure. >> >> There was a discussion on the R-devel mailing list about it. The >> developers came to the conclusion that there is no support for complex >> functions complied with C99 standard in FreeBSD. >> >> http://gcc.gnu.org/gcc-4.2/c99status.html >> >> As far as I can see (I am not a programmer) FreeBSD is using the old c99 >> wrapper file in /usr/bin. Am I right that lang/gcc45 should support such >> complex functions? >> >> http://gcc.gnu.org/gcc-4.5/c99status.html >> >> Is there any way to get access to C99 complex functions of gcc-4.5.3 or >> newer at least within a port? > > I am the math/R maintainer, and I do not subscribe to this list, > although I occasionally read it. Therefore it would be better to ask > me directly regarding questions about R, even if they are an > appropriate, in a wider sense, for this list. b.f., thank you very much for answering and sorry for not contacting you directly or at least via CC. Building R from sources works for me longer than a decade now without any trouble. R-devel (pre 2.13.0) is the first version complaining about missing C99 complex support. I asked about it on R-devel@ and after some discussion with several developers Murray Stokely advised me to open a thread at freebsd-standards@, so I did. At the time I opened this thread I wanted to ask in a more general way for C99 complex support. I used R as an example for my problem. > Yes, you can use some of the C99 complex machinery, enough to satisfy > R, which provides crude implementations of some of it if you have no > support for it otherwise (in, e.g., src/main/complex.c). But you > should use lang/gcc4* and the appropriate compiler flags -- if you are > using /usr/bin/c99, you are using the wrong compiler suite. The port > sets USE_FORTRAN=yes, which points R in the right direction. If you > are not a programmer, why not just use the port? Or, if you really > need the development version, why not use the port as a basis for your > own locally-patched port? Generally speaking, you cannot expect to > build software that is largely developed on other platforms without > some modifications. I like your port, but for some reason I prefer to build from sources. Over the years I found some smaller problems in upcoming versions of R, which could worked out with help from R developers before the release. I never expected that every new or upcoming release of R should work out of the box. But if I find a problem which prevents me from building such a version on FreeBSD, I take a look, eventually contact R-help@ or R-devel@ and always over the last 13 years we found a solution. Several times this led to some little new or special code in the R sources. > In any event, I too would like to see better support in the base > system for C99 math, which is being used by an increasing number of > software packages. It seems, in particular through the eyes of R developers, that FreeBSD is one of the last bigger OS leaking C99 complex support (Windows has, Linux has, Mac OS X has ...). Are you already working on a port for upcoming (hopefully in spring) R-2.13.0? > b. Thanks again, Rainer
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4D506167.4020408>