strange error

[JaSeong Ju]

Dear Gnu,

I'm compiling a large fortran 77 source code and the
compiler simply stops. Complains there is error
but does not say what the error is.
So I run it again with -d option and this is the
output:

$make -d >&
...[deleted]...
g77 -c -w -g unx10.1a.o /home1/ju/tsc/unx10.1a.f -L//home1/ju/tsc -ltv80 
-lnag -L//home1/ju/ncarg/lib -lncarg -lncarg_c -lncarg_gks 
-L/usr/X11R6/lib -lX11
Child access: user 515 (real 515), group 100 (real 100)
g77: unx10.1a.o: ?? ???? ????? ??
Putting child 0x0807d778 (unx10.1a.o) PID 22838 on the chain.
Live child 0x0807d778 (unx10.1a.o) PID 22838
Got a SIGCHLD; 1 unreaped children.
Reaping losing child 0x0807d778 PID 22838
make: *** [unx10.1a.o] ?? 1
Removing child 0x0807d778 PID 22838  from chain.
$

Is this a bug in g77?

Regards,
J. Ju