xlc_r -DHAVE_CONFIG_H -I. -I. -I.-DPKGLIBDIR="\"/usr/local/lib/pkgconfig\""
-I./glib-1.2.8 -g -qfullpath -O3 -qmaxmem=-1 -qtune=auto  -c main.c
"main.c", line 193.35: 1506-196 (E) Initialization between types 
"void*" and "void(*)(struct poptContext_s*,enum poptCallbackReason,const struct
poptOption*,const char*,void*)" is not allowed.
"main.c", line 572.17: 1506-196 (S) Initialization between types "char*" and
"int" is not allowed.
make[2]: *** [main.o] Error 1
make[2]: Leaving directory `/wrk2/pkgconfig-0.15.0'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/wrk2/pkgconfig-0.15.0'
make: *** [all-recursive-am] Error 2

xlc is very standards compliant and this probably represents a real bug.  I have
autconfig and automake to the most recent stable as of march 25,2005.
I do not know what this error means because I am not a C programmer.  If we
re-implement this in Fortran then I can help debug this. Thanks! -Andy 
andy314159pi@yahoo.com