gcc -o X11Vpcr X11Vpkg.o /project/ppcr/v1.12-4.1.3/base/pcr.o \
 /project/ppcr/v1.12-4.1.3/base/PCR←BaseMain.o /project/ppcr/v1.12-4.1.3/xr/xr.o  \
 -lm