unrecognized command line option "-arch"

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Hello,

Up until 30 minutes ago, I have been able to install the following package.  Perhaps while playing with the install.package( ) command and trying to install a built package - I did something.

I am running 2.12 on an iMac with an Intel Core i7 Mac OSX 10.6.6

Does this look familiar to anyone?  Does one know how I would correct this.

Yes, you have the wrong Fortran compiler it appears. But then CRAN R doesn't even use g77 so there is a lot you didn't tell us...

Cheers,
Simon
Thanks,

Matt

bash-3.2$ R CMD INSTALL gisdt
* installing to library '/Library/Frameworks/R.framework/Resources/library'
* installing *source* package 'gisdt' ...
** libs
*** arch - i386
g77 -c   -fPIC  -g -O2 -c tsk.f -o tsk.o
gcc -arch i386 -std=gnu99 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/lib -o gisdt.so tsk.o -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
installing to /Library/Frameworks/R.framework/Resources/library/gisdt/libs/i386
*** arch - x86_64
g77 -arch x86_64   -fPIC  -g -O2 -c tsk.f -o tsk.o
f771: error: unrecognized command line option "-arch"
make: *** [tsk.o] Error 1
ERROR: compilation failed for package 'gisdt'
* removing '/Library/Frameworks/R.framework/Resources/library/gisdt'
* restoring previous '/Library/Frameworks/R.framework/Resources/library/gisdt'

Matthew Pocernich

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