user-specified completer function, for (temporary) situations

where the usual code completion is inappropriate.

will now warn if it is able to detect truncation

when unpacking a file of 4GB or more (related to

now force arguments to the functions they apply

in order to eliminate undesirable interactions between lazy

evaluation and variable capture in closures.  This resolves

It is possible to request the use of system

incompatibility of such headers discussed in the 'R Installation

now the default.  For the time being there is fallback to the

found or (unlikely) if they are too old.

script from Texinfo 5.1 or later, rather

package building, thanks to Dirk Eddelbuettel.

invisibly. The initial optimization level can also be set with the

specify an alternative set of tests to run.

testing after many types of errors, and will output a summary

count of errors at the end if any have occurred.

checks the existence and accessibility of URLs in the

files and in the help files (provided the build

reports non-ASCII characters in R source files when there

reports (apparent) S3 methods exported but not registered.

reports overwriting registered S3 methods from

base/recommended packages.  (Such methods are replaced in the

affected package for the rest of the session, even if the

false positives, but note that technical words should be

single-quoted and will then be accepted).

Most of these checks can also be selected by environment

etc.  This requires packages using them to be re-installed.

now ignored, so arguments are duplicated if

would do so.  As their help has long said,

guaranteed to have sufficient alignment for

A number of changes to the Windows build system are in development.

Installation using external binary distributions

and the build instructions have been revised.

added to obtain copies of the external libraries from

Texinfo 5.1 or later.  CRAN binary builds include

the manuals, but by default builds from source will not, and they

will be accessed from CRAN.  See the comments in

(Windows) Changes have been made to support an experimental