Hi Dirk,
You are right. My current zlib1g version is 1:1.2.3.4.dfsg-2. It works well with zlib1g 1:1.2.3.3.dfsg-15. With zlib1g 1:1.2.3.4.dfsg-2, > readLines(gzfile(system.file("DESCRIPTION", package="lattice"))) character(0) Sincerely, Chenliang Xu On Mon, Dec 28, 2009 at 8:24 PM, Dirk Eddelbuettel <e...@debian.org> wrote: > > ChenLiang, Johannes, Ben, > > Thank you all for pushing the bug report further. That is something we ought > to bring to R Core's attention, but maybe a little home work is needed. > > On 28 December 2009 at 14:23, ChenLiang Xu wrote: > | Hi, > | > | I met similar problems when installing packages from CRAN. > | > | It seems to be related with the function gzfile, which used by read.dcf > | I tried the following command, > | > | > read.dcf(system.file("DESCRIPTION", package="lattice"), "Package") > | Error in read.dcf(system.file("DESCRIPTION", package = "lattice"), > "Package") : > | Line starting 'P ...' is malformed! > | > | > thefile <- gzfile(system.file("DESCRIPTION", package="lattice")) > | > read.dcf(thefile, "Package") > | Error in read.dcf(thefile, "Package") : > | Line starting 'P ...' is malformed! > | > | > thefile <- file(system.file("DESCRIPTION", package="lattice")) > | > read.dcf(thefile, "Package") > | Package > | [1,] "lattice" > > So without it, it works. With gzfile(), it dies. And gzfile() is invoked > unconditionally at the top. > > Question now is whether that is a recent change or not. I only see something > related to 2.10.0 in NEWS: > > o gzfile() looks at the file header and so can now also read > bzip2-ed files and xz-compressed files. > > which makes me think that this should have blown up earlier. > > On the other hand, the library for gzip (zlib) is something where Debian > could be different which is wht 'we' see the bug and nobody else. What do > you have on sid -- I have > > ii zlib1g 1:1.2.3.3.dfsg-15 compression library - runtime > ii zlib1g-dev 1:1.2.3.3.dfsg-15 compression library - > development > > and 'apt-cache policy' leads to a newer version on unstable (1:2.3.4.dfsg-15) > > Can you downgrade zlib1g and see if this persists? > > Dirk, hopeful we have a smoking gun > > -- > Three out of two people have difficulties with fractions. > -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org