Problem compiling intrinsic functions

Question

I've recently had a new version of the sun fortran compiler installed by our IT people. However, I appear to be unable to use certain intrinsic functions in a particular manner. As an example the following code compiles and runs successfully, whilst the second example program fails to link:
program main
implicit none
PRINT*, ADJUSTL(" abc")
PRINT*, ADJUSTR("abc ")
PRINT*, SIGN(100.0,-1.0)
end program main
program main
implicit none
character(len=5) :: test
real :: neg = -1.0, ton = 100.0
test = "abc "
PRINT*, ADJUSTL(test)
PRINT*, ADJUSTR(test)
PRINT*, SIGN(ton,neg)
end program main
Has anyone come accross this before? Or is it possible to recreate the error? The error message I'm getting is:
Undefined first referenced
symbol in file
F90ADJUSTR_8 temp.o
F90ADJUSTL_8 temp.o
__f95_signf temp.o
ld: fatal: Symbol referencing errors. No output written to a.out
Any help appreciated. Thanks
Ric

Answer 1

It seems as though the compiler didn't install properly. Those functions are defined in libfsu. Try using the -v option when linking. You'll see a bunch of output, including something like this:
/usr/ccs/bin/ld -t -R/opt/SUNWspro/lib/v8plus:/opt/SUNWspro/lib:/opt/SUNWspro/lib/v8plus:/opt/SUNWspro/lib -o a.out /opt/SUNWspro/prod/lib/crti.o /opt/SUNWspro/prod/lib/crt1.o /opt/SUNWspro/prod/lib/misalign.o /opt/SUNWspro/prod/lib/values-xi.o -Y P,/opt/SUNWspro/lib/v8plus:/opt/SUNWspro/prod/lib/v8plus:/opt/SUNWspro/lib:/opt/SUNWspro/prod/lib:/usr/ccs/lib:/lib:/usr/lib foo.o -lfui -lfai -lfai2 -lfsumai -lfprodai -lfminlai -lfmaxlai -lfminvai -lfmaxvai -lfsu -lsunmath -Bdynamic -lmtsk -lm -lc /opt/SUNWspro/prod/lib/crtn.o
This link command includes a set of directories in which the linker should look for libraries (the "-Y P, " option). Look for libfsu.so in one of those directories. Given your symptoms, either you won't find it, or you'll find an old one that doesn't contain those functions.
Anyway, reinstalling is probably the best way to fix the problem.