R configure.in makes bad alpha assumptions (PR#1676)

[mcmahill@mtl.mit.edu]

Hi,

I was looking at configure.in for R-1.4.1 and in the
  case "${host_cpu}" in
part under alpha CPU's, the switch of -mieee for g77 and -fpe3 otherwise
is an OSF specific, not alpha specific issue.  In particular, if someone
used f2c-f77 (shell script which emulates a fortran compiler with f2c and
the c compiler), they'd get the broken -fpe3.  I'd probably either test
for OSF before adding -fpe3


-dan




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