-o disk.module lib/disk_module-disk.o   
/usr/bin/ld: -r and -pie may not be used together
collect2: error: ld returned 1 exit status
Makefile:24260: recipe for target 'disk.module' failed
make[3]: *** [disk.module] Error 1
make[3]: Leaving directory '/home/zscore/grub/grub-core'
Makefile:23531: recipe for target 'all' failed
make[2]: *** [all] Error 2
make[2]: Leaving directory '/home/zscore/grub/grub-core'
Makefile:10893: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/zscore/grub'
Makefile:3119: recipe for target 'all' failed
make: *** [all] Error 2
zscore@zscore-Ubuntu:~/grub$