[Rd] Can configure.ac detect 64 bit R?

jhallman at frb.gov jhallman at frb.gov
Tue Jun 5 17:37:17 CEST 2007

My fame package has to link to the libchli.so that comes with FAME.
However, FAME is now supplying both 32 and 64 bit versions of the
library. The 32-bit version is $FAME/hli/libchli.so while the 64-bit
version is $FAME/hli/64/libchli.so.  To set the right flags, it seems
that I need to know, from within configure.ac, whether the R
installation is 32 bit or 64 bit.  Is there a way to detect this?


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