checking for suffix of object files... configure: error: in `/root/src/glibc':

It seems like you are encountering an error while configuring the GNU C Library (glibc) on your system. The error message "checking for suffix of object files..." usually indicates that there is a problem with the configuration script.

Here are a few possible solutions that you can try:

1. Make sure that you have all the required dependencies installed on your system. You can check the documentation or the README file included with the glibc source code to see what dependencies are required.

2. Try running the configuration script again with the --disable-sanity-checks option. This will disable some of the checks that the script performs, which may help to bypass the error.

3. If all else fails, you may need to seek help from the glibc community or support team to get assistance with resolving the issue.