I tried to build pango-1.40.14 with all required and recommended
dependencies but it failed:
[116/127] Generating pango-view.1 with a custom command.
FAILED: pango-view/pango-view.1
/usr/bin/help2man --no-info --section=1 '--help-option="--help-all"'
'--name="Pango text viewer"' --output=pango-view/pango-view.1
/sources/pango-1.40.14/build/pango-view/pango-view
Unknown option: help-option
`help2man' generates a man page out of `--help' and `--version' output.
Usage: help2man [OPTION]... EXECUTABLE
-n, --name=STRING use `STRING' as the description for the NAME
paragraph
-s, --section=SECTION use `SECTION' as the section for the man page
-i, --include=FILE include material from `FILE'
-I, --opt-include=FILE include material from `FILE' if it exists
-o, --output=FILE send output to `FILE'
-N, --no-info suppress pointer to Texinfo manual
--alt_version_key=KEY use specified flag instead of --version
--help print this help, then exit
--version print version number, then exit
EXECUTABLE should accept `--help' and `--version' options.
Report bugs to <[email protected]>.
[117/127] Linking target tests/test-pangocairo-threads.
ninja: build stopped: subcommand failed.
The help2man Perl script was installed with lsb-release-1.4; this
version is from 2000 and indeed lacks `help-option'. This appears to be
a bug in BLFS 8.2.
In the development version if BLFS help2man is an optional dependency of
pango with an external link to the GNU ftp server. So I downloaded the
latest version of help2man from there (help2man-1.47.6 from February 28,
2018) and this version does have that option. Then I replaced the old
version with the new one and rebuilt pango, but it failed again:
[115/127] Generating pango-view.1 with a custom command.
FAILED: pango-view/pango-view.1
/usr/bin/help2man --no-info --section=1 '--help-option="--help-all"'
'--name="Pango text viewer"' --output=pango-view/pango-view.1
/sources/pango-1.40.14/build/pango-view/pango-view
Unknown option: no-info
Unknown option: section
Unknown option: help-option
Option name does not take an argument
Unknown option: output
Usage: /usr/bin/help2man [--quiet] [--stdout] [--with-gettext] [--name]
[--version]
[116/127] Compiling C object
'tests/test-pangocairo-threads@exe/test-pangocairo-threads.c.o'.
ninja: build stopped: subcommand failed.
I don't understand the "unknown option" messages here because these
options are present in this version of help2man.
After these failed attempts, I removed help2man from /usr/bin and
rebuilt pango again, this time without failure.
So can pango be built with help2man and if so, how, and why did it fail
as above?
Steve Berman
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