libffi 0.7.0 on docs.rs failed to build

[ghost]

Hi, I'm not sure if this is an issue with libffi-rs/libffi-sys-rs or with docs.rs, but the current page for libffi-rs 0.7.0 on docs.rs says it failed to build. You can see the build output here, although the interesting bits in the output have \n escaped, so I attempted to fix the output:

make[2]: Entering directory \'/home/cratesfyi/cratesfyi/debug/build/libffi-sys-7b10269bbdd70d1a/out/libffi-build/x86_64-unknown-linux-gnu\'
restore=: && backupdir=\".am$$\" && \\
am__cwd=`pwd` && CDPATH=\"${ZSH_VERSION+.}:\" && cd .. && \\
rm -rf $backupdir && mkdir $backupdir && \\
if (/bin/bash /home/cratesfyi/cratesfyi/debug/build/libffi-sys-7b10269bbdd70d1a/out/libffi-build/missing makeinfo  --version) >/dev/null 2>&1; then \\
  for f in ../doc/libffi.info ../doc/libffi.info-[0-9] ../doc/libffi.info-[0-9][0-9] ../doc/libffi.i[0-9] ../doc/libffi.i[0-9][0-9]; do \\
    if test -f $f; then mv $f $backupdir; restore=mv; else :; fi; \\
  done; \\
else :; fi && \\
cd \"$am__cwd\"; \\
if /bin/bash /home/cratesfyi/cratesfyi/debug/build/libffi-sys-7b10269bbdd70d1a/out/libffi-build/missing makeinfo    -I doc -I ../doc \\
 -o ../doc/libffi.info ../doc/libffi.texi; \\
then \\
  rc=0; \\
  CDPATH=\"${ZSH_VERSION+.}:\" && cd ..; \\
else \\
  rc=$?; \\
  CDPATH=\"${ZSH_VERSION+.}:\" && cd .. && \\
  $restore $backupdir/* `echo \"./../doc/libffi.info\" | sed \'s|[^/]*$||\'`; \\
fi; \\
rm -rf $backupdir; exit $rc
Makefile:1419: recipe for target \'../doc/libffi.info\' failed
make[2]: Leaving directory \'/home/cratesfyi/cratesfyi/debug/build/libffi-sys-7b10269bbdd70d1a/out/libffi-build/x86_64-unknown-linux-gnu\'
Makefile:1604: recipe for target \'install-recursive\' failed
make[1]: Leaving directory \'/home/cratesfyi/cratesfyi/debug/build/libffi-sys-7b10269bbdd70d1a/out/libffi-build/x86_64-unknown-linux-gnu\'
Makefile:3153: recipe for target \'install\' failed
--- stderr
autoreconf: Entering directory `.\'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force -I m4
autoreconf: configure.ac: tracing
autoreconf: running: libtoolize --copy --force
autoreconf: running: /usr/bin/autoconf --force
autoreconf: running: /usr/bin/autoheader --force
autoreconf: running: automake --add-missing --copy --force-missing
configure.ac:31: installing \'./compile\'
configure.ac:8: installing \'./config.guess\'
configure.ac:8: installing \'./config.sub\'
configure.ac:19: installing \'./install-sh\'
configure.ac:19: installing \'./missing\'
Makefile.am: installing \'./depcomp\'
Makefile.am:56: installing \'./mdate-sh\'
autoreconf: Leaving directory `.\'
/home/cratesfyi/cratesfyi/debug/build/libffi-sys-7b10269bbdd70d1a/out/libffi-build/missing: line 81: makeinfo: command not found
WARNING: \'makeinfo\' is missing on your system.
         You should only need it if you modified a \'.texi\' file, or
         any other file indirectly affecting the aspect of the manual.
         You might want to install the Texinfo package:
         <http://www.gnu.org/software/texinfo/>
         The spurious makeinfo call might also be the consequence of
         using a buggy \'make\' (AIX, DU, IRIX), in which case you might
         want to install GNU make:
         <http://www.gnu.org/software/make/>
make[2]: *** [../doc/libffi.info] Error 127
make[1]: *** [install-recursive] Error 1
make: *** [install] Error 2
thread \'main\' panicked at \'Building libffi\', /home/cratesfyi/.cargo/registry/src/github.com-1ecc6299db9ec823/libffi-sys-0.7.0/build.rs:41:5
note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

Unfortunately I don't have much experience with building C projects/libffi, or using make/texinfo, so I can't help figure out what's going on here. The docs for libffi-rs 0.6.4 appear to have compiled correctly, and the changelog entry for 0.7.0 doesn't mention any big API changes, so in the mean time people can just use the docs from 0.6.4.

[tov]

Thanks. I think this might be because of an unsatisfied dependency on texinfo. I know that was a thing in the past, and I had .travis.yaml installing that package. But I thought someone managed to remove the dependency. I’ll look into it…

[tov]

Hmm, this is still there, though:

addons:
  apt:
    packages:
      - texinfo

[tov]

So I guess the question is can we either 1) not depend on texinfo or 2) get docs.rs to make it available.

[tov]

This actually belongs here: tov/libffi-sys-rs#24