Dear diffutils developers,
I am currently building Linux From Scratch and cross-compiling temporary tools. When compiling diffutils-3.12 with the following script:
./configure --prefix=/usr \
--host=$LFS_TGT \
gl_cv_func_strcasecmp_works=y \
--build=$(./build-aux/config.guess) \
&& make -j$(nproc) \
&& make DESTDIR=$LFS install
I encounter these errors during make:
help2man: can't get `--help' info from sdiff
Try `--no-discard-stderr' if option outputs to stderr
help2man: can't get `--help' info from cmp
Try `--no-discard-stderr' if option outputs to stderr
help2man: can't get `--help' info from diff
Try `--no-discard-stderr' if option outputs to stderr
make[1]: *** [Makefile:2574: sdiff.1] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile:2574: cmp.1] Error 1
make[1]: *** [Makefile:2574: diff.1] Error 1
make[1]: Leaving directory '/mnt/lfs/sources/diffutils-3.12/man'
make: *** [Makefile:2437: all-recursive] Error 1
My host system is Ubuntu 22.04 with gcc 11.4.0. According to the Linux From Scratch book, this problem should not occur, so I am unsure why it happens on my system.
I have tried several methods to bypass or fix this issue, including:
-
make HELP2MAN=: or make HELP2MAN=true
-
Running make with HELP2MAN="help2man --no-discard-stderr"
-
Exporting HELP2MAN=: or make HELP2MAN=true shell environment
None of these attempts resolved the problem.
Could you please advise:
-
Why this problem might be occurring in my environment?
-
What is the recommended way to bypass or fix the help2man step during the build?
Thank you very much for your time and assistance.
Best regards,