cpio fails with -fno-common

[Kristýna Streitová]

Hello,

Starting from the upcoming GCC release 10, the default of -fcommon 
option will change to -fno-common:

In C, global variables with multiple tentative definitions will result 
in linker errors. Global variable accesses are also more efficient on 
various targets.

The latest cpio fails to build with -fno-common option. I'm attaching a 
build log.

Thanks for fixing it.

Best regards,
Kristyna Streitova

cpio_build.log
Description: Text Data