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I wonder whether documents can be disabled. When people build old packages, they may not care about the documentation. I tried to build gcc 4.4.7 yesterday with gcc 12 and failed due to a tex syntax error. I could not figure out why, and `configure MAKEINFO=3Dtrue` did not help, so I switched to `truncate -s0 gcc/doc/*`. I just tried binutils and did not find a way to disable doc, either. To me, if doc can be disabled, any makeinfo version requirement is fine. (To build GCC 5, I have noticed that --disable-libsanitizer is needed.)