Hello, I tried the R-Sig-Mac list with this query, but had no takers. I hope that the following isn't too far off the mark for this list. Many thanks in advance if someone can help me out! Quick summary: I can't get RSPerl working on a PPC G5 with the pre-compiled binary for Mac OS X, but it does work if I compile R from source with the "--enable-R-shlib" flag. If I need to compile from source...what other options are recommended? More details... I'm having some trouble getting RSPerl working on an XServe cluster. Using: perl v5.8.6 R v2.6.2 (installed from binaries from CRAN) RSPerl v0.92-1 OS X Server 10.4.11, PowerPC G5 I'm installing RSPerl with: R CMD INSTALL -c -l '/home/gdowns/R' --configure-args='--with-in-perl' RSPerl_0.92-1.tar.gz but when I try to load the library I get: > library("RSPerl") Error in dyn.load(file, ...) : unable to load shared library '/home/gdowns/R/RSPerl/libs/ppc/RSPerl.so': dlopen(/home/gdowns/R/RSPerl/libs/ppc/RSPerl.so, 6): Symbol not found: _boot_R Referenced from: /home/gdowns/R/RSPerl/libs/ppc/RSPerl.so Expected in: dynamic lookup Error: package/namespace load failed for 'RSPerl' So, I tried building R from scratch, using: ./configure --prefix=/tmp/R/ --enable-R-shlib I then repeated the install of RSPerl with this special version of R: /tmp/R/R.framework/Resources/bin/R CMD INSTALL -c -l '/home/gdowns/R' --configure-args='--with-in-perl' RSPerl_0.92-1.tar.gz RSPerl *does* work with this version of R. I'm confused because question 1.3 of the RMacOSX-FAQ says: "Note that the CRAN binary includes R shared library, so there is no need to re-compile R with --enable-R-shlib. " I also note that when installing RSPerl with the binary distribution of R, the R CMD INSTALL process does not generate the perl modules (in the RSPerl/perl directory). They do get created with the compiled-from-source version of R (which is, I suspect, why it works!). I'm not sure where I'm going wrong with this. I'd highly prefer to stick with the pre-compiled binary to make upgrading easier. Plus I'm sure that the version I built today is not as well optimized as the binary distribution! If I really do need to compile R from scratch, can anyone recommend the appropriate configure flags? many thanks and best regards, Greg. -- Gregory Downs CRSC Room 219/414 Department of Plant Agriculture University of Guelph Guelph, Ontario, Canada, N1G 2W1 519-824-4120 x58164