DESTDIR support is broken (patch)

[Ivan Shmakov]

>>>>> Julien ÉLIE <julien at trigofacile.com> writes:

 >> But please note that the code above silently assumes that both
 >> $(MAN5) and $(MAN8) are subdirectories of a common directory and
 >> their ``base'' names are `man5' and `man8', respectively.

 > You're right.

 >> Thus, it's worthwhile to mention the assumption made at least in the
 >> code comments.  A better solution would be to check whether the
 >> assumption is actually satisfied and, if it isn't, to fall back
 >> creating absolute symbolic links (as was done before.)

 > Does this patch suit you?

 > ===================================================================
 > --- doc/man/Makefile    (révision 7854)
 > +++ doc/man/Makefile    (copie de travail)
 > @@ -53,8 +53,13 @@
 >             $(CP_MAN) $$M $D$(MAN5)/$$M ; \
 >         done
 >         rm -f $D$(MAN5)/localgroups.5 $D$(MAN5)/nocem.ctl.5
 > -       $(LN_S) ../man8/docheckgroups.8 $D$(MAN5)/localgroups.5
 > -       $(LN_S) ../man8/perl-nocem.8 $D$(MAN5)/nocem.ctl.5
 > +       if [ -r $D$(MAN5)/../man8 ] ; then \

	I'd rather use [ $D$(MAN5)/../man8 -ef $D$(MAN8) ] here, but
	unfortunately `-ef' isn't required by POSIX.

	Also, it might be something like:

   if [ $(dir $(MAN5))/$(notdir $(MAN8)) = $(MAN8) ] ; then ...

	though I don't know whether these Make functions are portable.

 > +           $(LN_S) ../man8/docheckgroups.8 $D$(MAN5)/localgroups.5 ; \
 > +           $(LN_S) ../man8/perl-nocem.8 $D$(MAN5)/nocem.ctl.5 ; \
 > +       else \
 > +           $(LN_S) $(MAN8)/docheckgroups.8 $D$(MAN5)/localgroups.5 ; \
 > +           $(LN_S) $(MAN8)/perl-nocem.8 $D$(MAN5)/nocem.ctl.5 ; \
 > +       fi 

 >  # auth_krb5 is conditionally compiled, so handle it specially.  actsync(8)
 >  # also covers actsyncd.

 > It seems to work fine.  (And whether $D is put in the condition does
 > not matter.)

	It'll break in the following case:

# ls -d /foo/man/man5 
/foo/man/man5
# make MAN5=/foo/man/man5.my MAN8=/foo/man/man8.my install