==== run-regress-fp ====
cc -O2 -pipe   -MD -MP  -c /home/src/regress/lib/libc/printf/fp.c
cc   -o fp fp.o 
./fp

==== run-regress-int ====
cc -O2 -pipe   -MD -MP  -c /home/src/regress/lib/libc/printf/int.c
cc   -o int int.o 
./int

==== run-regress-string ====
cc -O2 -pipe   -MD -MP  -c /home/src/regress/lib/libc/printf/string.c
cc   -o string string.o 
./string