Does not take an "=" as part of the name of a source file.
November 4, 2010
pgi, unlike our other compilers, will not accept an "=" as part of a source file name.
Even worse, it gives a very cryptic error message:
> ftn a=b.f
/opt/cray/xt-asyncpe/3.8/bin/ftn: INFO: linux target is being used
/opt/pgi/10.3.0/linux86-64/10.3/lib/f90main.o: In function `main':
f90main.c:(.text+0x3c): undefined reference to `MAIN_'
> cat a=b.f
print *,"this shows a problem with pgi"