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Please do INSTALL the package and test loading it before R CMD check.
You will get better errror messages.  This has been discussed on the 
appropriate R list (R-devel, not here), many times.

Since you mention -lgslcblas and no BLAS, my guess is that your shared 
object has unsatisfied entry points.

However, can you not obtain advice locally on R / MacOS X programming: 
your address suggests that you have neighbours who are long-term 
practitioners?

Hi,

I am new in writing R extension.
I read the "Writing R Extensions", and search online but just cannot
find the answer.
You seeem to have failed to find the R posting guide and its request to 
use a proper subject line, not to send HTML mail and to use an appropriate 
list.
I am trying to add c-code, which depend on GSL C  library, into my R
package.
I am using Max OS-X 10.4.3, powerpc-apple-darwin8-gcc-4.0.1

I begin wtih package.skeleton, and then add my c file into folder src
and then add  file Makevars:

PKG_LIBS=-lgsl -lgslcblas -lm

In the zzz.R file, I add the function .First.lib:

.First.lib <- function(lib, pkg) {
  library.dynam("anovaGSL", pkg, lib)
}

I think these two things are enough. then I just run R CMD check
anovaGSL (my package name)
followed is the error message:

Error: .First.lib failed for 'anovaGSL'
Call sequence:
2: stop(gettextf(".First.lib failed for '%s'", libraryPkgName(package)),
       domain = NA)
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose
= FALSE)
Execution halted
See section 'Generic functions and methods' of the 'Writing R
Extensions'
manual.
* checking replacement functions ... WARNING
Error: .First.lib failed for 'anovaGSL'
Call sequence:
2: stop(gettextf(".First.lib failed for '%s'", libraryPkgName(package)),
       domain = NA)
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose
= FALSE)
Execution halted
In R, the argument of a replacement function which corresponds to the
right
hand side must be named 'value'.
* checking foreign function calls ... WARNING
Error: .First.lib failed for 'anovaGSL'
Call sequence:
2: stop(gettextf(".First.lib failed for '%s'", libraryPkgName(package)),
       domain = NA)
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose
= FALSE)
Execution halted
See section 'System and foreign language interfaces' of the 'Writing R
Extensions' manual.
* checking Rd files ... OK
* checking for missing documentation entries ... ERROR
Error: .First.lib failed for 'anovaGSL'

appreciate any help!!!

wei

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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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