[Fedora-directory-devel] Why is there a Makefile in CVS?

[Richard Megginson]

Andrew Bartlett wrote:
> On Tue, 2007-03-13 at 08:09 -0600, Richard Megginson wrote:
>   
>> Andrew Bartlett wrote:
>>     
>>> <snip>
>>> It was this bit in Makefile.am that seems odd to me:
>>>
>>> # these are for the config files and scripts that we need to generate
>>> and replace
>>> # the paths and other tokens with the real values set during
>>> configure/make
>>> # note that we cannot just use AC_OUTPUT to do this for us, since it
>>> will do things like this:
>>> # LD_LIBRARY_PATH = ${prefix}/lib/fedora-ds
>>> # i.e. it literally copies in '${prefix}' rather than expanding it out -
>>> we want this instead:
>>> # LD_LIBRARY_PATH = /usr/lib/fedora-ds
>>> if BUNDLE
>>> fixupcmd = sed \
>>>         -e 's, at bindir\@,$(bindir),g' \
>>>         -e 's, at sbindir\@,$(sbindir),g' \
>>>
>>>   
>>>       
>> It seems odd because it is odd - but there is no other way to replace 
>> things like @localstatedir@, @sysconfdir@, @sbindir@, etc. in .in files 
>> that we use during the build.  I don't know how other projects do this - 
>> perhaps they ignore the "mandated GNU coding standards" and just have 
>> ${prefix} and ${exec_prefix} expanded during configure, and just let 
>> AC_CONFIG_FILES and AC_OUTPUT create all of the real files from their 
>> corresponding .in file.
>>     
>
> I think so.  The coding standard seems to imply that you must be able to
> change the $prefix and $exec_prefix in the install, but that all
> internal references must be as if they had *not* been changed.
So, let me see if I understand what you're saying.  Let's say I have 
some .in files which have references to @prefix@ and @bindir@ (which is 
${prefix}/bin).  I run configure which creates realfile from realfile.in 
- I don't pass in --prefix to configure, which means @prefix@ will 
expand to "/usr" and @bindir@ to "/usr/bin" in realfile.  Next, I run 
make prefix=/myprefix install.  realfile will still refer to "/usr" even 
though I've told make to use "/myprefix" instead.

Where does it say or imply that?  Isn't that what "make DESTDIR=/path 
install" for?
> Perhaps
> that's the clue?
>
> Andrew Bartlett
>
>   
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>
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