[Rd] Building package with R 2.6.0 on Windows/Cygwin gives error with tar

Kevin Wright kw.statr at gmail.com
Thu Oct 4 22:14:18 CEST 2007

My setup:
Windows XP, R-2.6.0, Cygwin (not the Rtools version)

When I tried to build a package, I was given this message:
tar: c\:/X/Rpkgs/Drydown_1.41.tar: Cannot open: Input/Output error

Even manually typing the following caused the same error:
tar chf 'c:/X/Rpkgs/Drydown_1.41.tar' Drydown

I looked at the 2.5.1 and 2.6.0 build scripts.  After restoring this
section to the 2.6.0 build script:
  ## workaround for paths in Cygwin tar
  $filepath =~ s+^([A-Za-z]):+/cygdrive/\1+;
then $filepath evaluates to
and I was able to build packages again.

(Posted in case someone else has the same problem and/or finds this useful.)

Kevin Wright

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