bug#8497: Bug#620795: emacs23: Makefile generation with cpp mangles multiarch include paths (impending FTBFS)

[Rob Browning <rlb@defaultvalue.org>]

Steve Langasek <steve.langasek@canonical.com> writes:

> On Fri, Apr 15, 2011 at 09:51:00PM -0400, Glenn Morris wrote:
>> Rob Browning wrote:
>
>> > (If possible, please preserve the 620795-forwarded address in any replies.)
>
>> Sorry, not so long as bug#63995 exists.
>
>> >> The attached patch partially addresses this by undefining any macros that
>> >> happen to exist for the <cpu> portion of the architecture triplet.
>
>> Note the following in configure.in attempts to do this kind of thing already:
>
>>     # Now get this: Some word that is part of the ${srcdir} directory name
>>     # or the ${configuration} value might, just might, happen to be an
>>     # identifier like `sun4' or `i386' or something, and be predefined by
>>     # the C preprocessor to some helpful value like 1, or maybe the empty
>>     # string.  Needless to say consequent macro substitutions are less
>>     # than conducive to the makefile finding the correct directory.
>>     [cpp_undefs="`echo $srcdir $configuration $canonical unix |
>>       sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/  *$//' \
>>       -e 's/  */ -U/g' -e 's/-U[0-9][^ ]*//g'`"]
>
>> so it's not obvious to me why you need to do more (maybe $canonical is
>> i686-something but your directories are i386-something?).
>
> Ah - yes, that's exactly right.  So this issue should only affect the i386
> build, where the toolchain triplet != the multiarch directory.

OK, thanks.  I'll fix that in the next Debian release.

-- 
Rob Browning
rlb @defaultvalue.org and @debian.org
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