2013/2/20 Junio C Hamano <gitster@xxxxxxxxx>:
> Junio C Hamano <gitster@xxxxxxxxx> writes:
>>> After the installation, all the html documents will copy to rootdir (/),
>>> and:
>>>
>>> $ git --html-path
>>> <PREFIX>
>>>
>>> $ git help -w something
>>> fatal: '<PREFIX>': not a documentation directory.
>>
>> I am not sure if this description is correct. The generated configure
>> seems to set
>>
>> datarootdir='${prefix}/share'
>> htmldir='${docdir}'
>> docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
>>
>> so it is likely you would get not <PREFIX> but <PREFIX>/share, no?
>
> This was a mis-diag; without docdir mentioned in config.mak.in, we
> do not even get that far, and htmldir will end up being empty, and
> the runtime code adds <PREFIX> to it in system_path(). What I was
> describing was what happens when you only mention @docdir@ but not
> PACKAGE_TARNAME in the file.
I also doubt about it after sleep, so I check it again:
## gettext is installed in non-standard location on Mac
$ export CFLAGS=-I/usr/local/include; export LDFLAGS=-L/usr/local/lib
$ make config
$ ./configure --prefix=/opt/git/v1.8.2
$ make && sudo make install
## already symlink /opt/git/v1.8.2/bin/* to /usr/local/bin/
$ git --html-path
/opt/git/v1.8.2/
$ git help -w help
fatal: '/opt/git/v1.8.2/': not a documentation directory.
>> And the worst part is that having to know that the file needs to
>> export docdir and PACKAGE_TARNAME feels to me that we are tying
>> ourselves to too much detail in the internal implementation detail
>> of versions of autoconf we happen to have for testing this change.
I am not familiar with autoconf. After clone autoconf and check,
I cannot find a neat way to change "htmldir" default location to
use ${datarootdir} (just like mandir).
In file "lib/autoconf/general.m4", there are:
AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
['${datarootdir}/doc/${PACKAGE_TARNAME}'],
['${datarootdir}/doc/${PACKAGE}'])])dnl
...
AC_SUBST([htmldir], ['${docdir}'])dnl
...
AC_SUBST([pdfdir], ['${docdir}'])dnl
...
AC_SUBST([mandir], ['${datarootdir}/man'])dnl
> This still stands. It really feels wrong that this file has to be
> aware of such an implementation detail of autoconf. But as an
> interim workaround, setting these two otherwise unused variables may
> be the best we could do.
>
> I am not sure if such a layout can be actually used for installing,
> though. Didn't we see some issues around the relativeness of
> htmldir and mandir vs passing them down to Documentation/Makefile,
> or is it not an issue when ./configure and config.mak.autogen is
> used?
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