/bin/sh ./../ylwrap "" ./jv-exp.y  y.tab.c jv-exp.tmp --
./../ylwrap: line 86: jv-exp.y: command not found
make[1]: *** [jv-exp.tab.c] 错误 1
make[1]: Leaving directory `/home/jnow/skyeye/gdb'
make: *** [all-gdb] 错误 2

请问版主，这个问题是怎么回事啊？