[Buildroot] Help: error LONG_BIT definition appears wrong for platform

[Peter Seiderer]

Hello Mark,

On Sat, 14 Mar 2020 20:30:01 +0800, Mark Leo Sumadero <fryu771 at gmail.com> wrote:

> Hi Peter,
>
> Thanks for the reply. I just used your configuration but i got the same
> error
>
> /home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../usr/build-1/libtool
> --silent --mode=compile
> /home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-gcc
> -prefer-pic -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
> -D_FILE_OFFSET_BITS=64 -Os  -DLINUX -D_REENTRANT -D_GNU_SOURCE
>  -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include
>  -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../usr/include/apr-1
>
> -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../usr/include/apr-1
> -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../../../arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include
> -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os
> -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/python3.7
> -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/include/python3.7m
> -DNDEBUG  -c -o src/server/mod_wsgi.lo src/server/mod_wsgi.c && touch
> src/server/mod_wsgi.slo
> In file included from
> /home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/include/python3.7m/Python.h:53:0,
>                  from src/server/wsgi_python.h:24,
>                  from src/server/mod_wsgi.c:22:
> /home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/include/python3.7m/pyport.h:699:2:
> error: #error "LONG_BIT definition appears wrong for platform (bad
> gcc/glibc config?)."
>  #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc
> config?)."
>
> Did i miss something? I am currently using Buildroot-2019.02.01 and
> python3.7, what version did you use?
> Are we the same of header path?

Tested against buildroot master, but should not make any difference,
the important part is a full rebuild (configure/compile) of the
package (best achieved by rm -rf build/mod_wsgi-61359e67448bdfc5fefb1692fd2a97f76394b20c)...

No need to patch configure or configure.ac (there is already enough logic/magic that the
given custom CPPFLAGS/LDFLAGS are used first)...

According to [1] the 'm' in 'python3.7m' comes from a python configuration with --with-pymalloc,
does not happen with stock buildroot configuration...

Regards,
Peter

[1] https://stackoverflow.com/questions/41589655/whats-the-difference-between-python3-x-and-python3-xm


>
> Thanks,
>
> Mark Leo
>
> On Sat, Mar 14, 2020 at 6:21 PM Peter Seiderer <ps.report at gmx.net> wrote:
>
> > Hello Mark,
> >
> > On Fri, 13 Mar 2020 15:04:43 +0100, Thomas Petazzoni <
> > thomas.petazzoni at bootlin.com> wrote:
> >
> > > Hello,
> > >
> > > On Fri, 13 Mar 2020 18:26:38 +0800
> > > Mark Leo Sumadero <fryu771 at gmail.com> wrote:
> > >
> > > >
> > /home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-gcc
> > >
> > > This is the cross-compiler: good!
> > >
> > > > -prefer-pic -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
> > > > -D_FILE_OFFSET_BITS=64 -Os  -DLINUX -D_REENTRANT -D_GNU_SOURCE
> > > >
> > -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include
> > > >
> > -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../usr/include/apr-1
> > > >
> > > >
> > -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../usr/include/apr-1
> > > >
> > -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/bin/../../../../arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include
> > > > -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os
> > > >
> > -I/home/falcon/Documents/pisokonek-project/pisokonek/installer/buildroot-2019.02.1/output/host/include/python3.7m
> > >
> > > This is a path to header of host components: BAD!
> > >
> > > And this is where your problem is, this header path should *NOT* be
> > > there when you cross-compile.
> >
> > The following worked for me (python3 case only):
> >
> > MOD_WSGI_VERSION = 61359e67448bdfc5fefb1692fd2a97f76394b20c
> > MOD_WSGI_SITE = $(call github,GrahamDumpleton,mod_wsgi,$(MOD_WSGI_VERSION))
> > MOD_WSGI_LICENSE = Apache-2.0
> > MOD_WSGI_LICENSE_FILES = LICENSE
> > MOD_WSGI_DEPENDENCIES = apache
> >
> > MOD_WSGI_CONF_OPTS = \
> > --with-apxs=$(STAGING_DIR)/usr/bin/apxs
> >
> > ifeq ($(BR2_PACKAGE_PYTHON3),y)
> > MOD_WSGI_DEPENDENCIES += python3
> > MOD_WSGI_CONF_ENV += \
> >
> > CPPFLAGS="-I$(STAGING_DIR)/usr/include/python$(PYTHON3_VERSION_MAJOR)" \
> >         LDFLAGS="-L$(STAGING_DIR)/usr/lib"
> > endif
> >
> > $(eval $(autotools-package))
> >
> > Regards,
> > Peter
> >
> > >
> > > Best regards,
> > >
> > > Thomas Petazzoni
> >
> >