Dear Members of the R-Mac Group,

I have just installed the R.app binaries version 2.1-1 2005-06-20 on both a PowerMac G4 (2 CPUs) running MacOSX 10.3.9 ("Panther") and a PowerMac G5 (2 CPUs) running MacOSX Server 10.4.2 ("Tiger" server).

Actually, everything works fine, except the GNU Fortran 77 3.4.2 optional package that fails repeatedly to install, without any diagnostic message that could help me find the problem.

At this point the R application shows up nicely on my Macs.

I have then installed the Logic Regression package LogicReg version 1.4.1, using the GFortran binaries for Mac OSX from http://quatramaran.ens.fr/~coudert/gfortran/macosx-dependencies/cctools-576.dmg. in order to compile the R package 'LogicReg'.
Compilation and installation worked OK too (no error, no warning showing up on the terminal window).

However, if I type: library('LogicReg') on the R console, I see the following fatal message:
"
Error in dyn.load(x, as.logical(local), as.logical(now)) :
	Cannot load shared library '/Library/Frameworks/R.framework/Resources/library/LogicReg/libs/LogicReg.so':
	dlopen( /Library/Frameworks/R.framework/Resources/library/LogicReg/libs/LogicReg.so, 6): 
		Symbol not found: __gfortran_pow_i4_i4
		Referenced from: /Library/Frameworks/R.framework/Resources/library/LogicReg/libs/LogicReg.so
		Expected in: flat namespace
Error in library("LogicReg"): .First.lib failed for 'LogicReg'
"
Note: the LogicReg.so stuff was compiled with no error and no warning using the R command "R CMD INSTALL ..." on a terminal window, and the LogicReg.so file is in the right place.
Apparently, this package has passed Charles Kooperberg's tests OK (see the relevant WEB page), so his Fortran library is not lacking that particular routine, but I have no indication on his computer settings and no address (sorry) to E-mail him for advice.
So, if anyone has any idea on how to fix the problem, I will gratefully follow his/her advice. I am familiar with C/C++ programming on a fairly wide variety of machines, but not at all on fortran and R, so, even if it is a fatal failure for me,  it may just be a trivial problem for you.
Thank you in advance for your help and your patience.
Best regards.
Georges BREFORT
"Research Scientist" Sanofi-Aventis
Evry Genetics Center
tel. #(33) (0)1 60 79 87 09


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