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Re: Bug#425445: libx11-6: fails to cross-build. tries to run cross-built makekeys utility



On Mon, 13 Aug 2007 00:57:04 +0200
Julien Cristau <jcristau@debian.org> wrote:

> On Sun, Aug 12, 2007 at 23:21:05 +0100, Neil Williams wrote:
> 
> > I'm not sure why you thought this would work because the debdiff
> > contained no changes that would have resulted in the src/utils/Makefile
> > using gcc in place of arm-linux-gnu-gcc because the critical variables
> > are defined BEFORE CC_FOR_BUILD is even specified. THAT is why I had to
> > use override.
> > 
> What variables?  

makekeys_LINK, LINK and COMPILE.

> src/utils/Makefile.in has 'CC = @CC_FOR_BUILD@', which
> becomes 'CC = gcc' in src/utils/Makefile.

But src/utils/Makefile does not exist.
It is obj-x86_64-linux-gnu/src/utils/Makefile
or obj-$(DEB_BUILD_GNU_TYPE)/src/utils/Makefile
(from debian/rules)

> I don't believe the only way to build makekeys with a native compiler is
> using a gnu makeism.

I only wish that such a method would actually work.
 
> > What are you using to build at your end? What is it that makes you
> > think that this can be solved without 'override' ?
> > 
> I installed the libc6-dev-arm-cross and gcc-4.1-arm-linux-gnu from the
> emdebian repo, symlinked /usr/include/X11 from
> /usr/arm-linux-gnu/include/ (hopefully any differences here don't
> matter), and ran dpkg-buildpackage -rfakeroot -B -aarm.
> Of course the package doesn't build because I don't have some of the
> necessary stuff, but it gets further than the makekeys stuff.

So you don't have dpkg-cross installed?

I think this is a completely different bug.

I use emdebuild (part of emdebian-tools) which merely does some useful
stuff to prepare patch files and then calls the dpkg-cross diversion of
dpkg-buildpackage -rfakeroot -a$ARCH etc. to do the rest of the work.

With a fully operational toolchain installed, dpkg-buildpackage fails
at makekeys just like emdebuild (which is exactly what I would expect).
 
> The log has:
> /bin/sh ../../../libtool --tag=CC   --mode=link arm-linux-gnu-gcc -I../../../../include -I../../../../include/X11 -I../../../include -I../../../include/X11 -I../../../../src/xcms -I../../../../src/xkb -I../../../../src/xlibi18n -I../../../../src -Wall -Wpointer-arith -Wstrict-prototypes         -Wmissing-prototypes -Wmissing-declarations     -Wnested-externs -fno-strict-aliasing -D_BSD_SOURCE -DHAS_FCHOWN -DHAS_STICKY_DIR_BIT          -D_BSD_SOURCE -DMALLOC_0_RETURNS_NULL -Wall -g -O2   -o libxomGeneric.la  omDefault.lo omGeneric.lo omImText.lo omText.lo omTextEsc.lo omTextExt.lo omTextPer.lo omXChar.lo  -ldl 
> arm-linux-gnu-ar cru .libs/libxomGeneric.a .libs/omDefault.o .libs/omGeneric.o .libs/omImText.o .libs/omText.o .libs/omTextEsc.o .libs/omTextExt.o .libs/omTextPer.o .libs/omXChar.o
> arm-linux-gnu-ranlib .libs/libxomGeneric.a
> creating libxomGeneric.la
> (cd .libs && rm -f libxomGeneric.la && ln -s ../libxomGeneric.la libxomGeneric.la)
> make[4]: Leaving directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules/om/generic'
> make[4]: Entering directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules/om'
> make[4]: Nothing to be done for `all-am'.
> make[4]: Leaving directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules/om'
> make[3]: Leaving directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules/om'
> make[3]: Entering directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules'
> make[3]: Nothing to be done for `all-am'.
> make[3]: Leaving directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules'
> make[2]: Leaving directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/modules'
> Making all in src
> make[2]: Entering directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/src'
> cd util && /usr/bin/make
> make[3]: Entering directory `/home/julien/src/xsf/git/lib/libx11/obj-i486-linux-gnu/src/util'
> gcc -DHAVE_CONFIG_H -I. -I../../src -I../../include/X11 -I../../../src/util    -Wall -Wpointer-arith -Wstrict-prototypes        -Wmissing-prototypes -Wmissing-declarations     -Wnested-externs -fno-strict-aliasing -D_BSD_SOURCE -DHAS_FCHOWN -DHAS_STICKY_DIR_BIT        -Wall -g -O2 -MT makekeys-makekeys.o -MD -MP -MF .deps/makekeys-makekeys.Tpo -c -o makekeys-makekeys.o `test -f 'makekeys.c' || echo '../../../src/util/'`makekeys.c

In the same position, I get:
arm-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../../src -I../../include/X11 -I../../../src/util    -Wall -Wpointer-arith -Wstrict-prototypes       -Wmissing-prototypes -Wmissing-declarations     -Wnested-externs -fno-strict-aliasing -D_BSD_SOURCE -DHAS_FCHOWN -DHAS_STICKY_DIR_BIT -I/usr/arm-linux-gnu/include    -I/usr/arm-linux-gnu/include   -I/usr/arm-linux-gnu/include   -Wall -g -O2 -MT makekeys-makekeys.o -MD -MP -MF .deps/makekeys-makekeys.Tpo -c -o makekeys-makekeys.o `test -f 'makekeys.c' || echo '../../../src/util/'`makekeys.c

Wrong compiler.
:-(

Note that the actual values of the variables are NOT taken from the
Makefile but from dpkg-buildpackage unless 'override' forces the
reverse handling, as documented in GNU make.

If I avoid the dpkg-cross diversion
(dpkg-buildpackage.orig -rfakeroot -a$ARCH etc.)
makekeys DOES compile under GCC and run.

For now, I'm cloning this bug against dpkg-cross until I can get the
dpkg-buildpackage.orig build to complete, at which point I'll let you
know exactly what patch is or is not required for this bug.

-- 


Neil Williams
=============
http://www.data-freedom.org/
http://www.nosoftwarepatents.com/
http://www.linux.codehelp.co.uk/

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