[Buildroot] [Bug 5666] New: Fails to build python 2.7.2 for 2440 arm

[Buildroot] [Bug 5666] New: Fails to build python 2.7.2 for 2440 arm

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5666

           Summary: Fails to build python 2.7.2 for 2440 arm
           Product: buildroot
           Version: 2012.08
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P5
         Component: Other
        AssignedTo: unassigned at buildroot.uclibc.org
        ReportedBy: hardcore at hardcoreforensics.com
                CC: buildroot at uclibc.org
   Estimated Hours: 0.0


The build process for  Python under the samsung cpu 2440 fails to build with
the following error


bob at bob-virtual-machine:~/buildroot-2012.08$ make
>>> python 2.7.2 Building
PATH="/home/bob/buildroot-2012.08/output/host/bin:/home/bob/buildroot-2012.08/output/host/usr/bin:/home/bob/buildroot-2012.08/output/host/usr/sbin/:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
PERLLIB="/home/bob/buildroot-2012.08/output/host/usr/lib/perl"
PYTHON_MODULES_INCLUDE=/home/bob/buildroot-2012.08/output/host/usr/arm-unknown-linux-uclibcgnueabi/sysroot/usr/include
PYTHON_MODULES_LIB="/home/bob/buildroot-2012.08/output/host/usr/arm-unknown-linux-uclibcgnueabi/sysroot/lib
/home/bob/buildroot-2012.08/output/host/usr/arm-unknown-linux-uclibcgnueabi/sysroot/usr/lib"
/usr/bin/make -j2  -C /home/bob/buildroot-2012.08/output/build/python-2.7.2/
make[1]: Entering directory
`/home/bob/buildroot-2012.08/output/build/python-2.7.2'
/home/bob/buildroot-2012.08/output/host/usr/bin/arm-unknown-linux-uclibcgnueabi-gcc
-c -fno-strict-aliasing  -pipe -Os  -DNDEBUG -g -fwrapv -O3 -Wall
-Wstrict-prototypes  -I. -IInclude -I./Include  -fPIC -DPy_BUILD_CORE -o
Modules/python.o ./Modules/python.c
/home/bob/buildroot-2012.08/output/host/usr/bin/arm-unknown-linux-uclibcgnueabi-gcc
-c -fno-strict-aliasing  -pipe -Os  -DNDEBUG -g -fwrapv -O3 -Wall
-Wstrict-prototypes  -I. -IInclude -I./Include  -fPIC -DPy_BUILD_CORE -o
Parser/acceler.o Parser/acceler.c
In file included from Include/Python.h:85:0,
                 from ./Modules/python.c:3:
Include/unicodeobject.h:575:20: warning: type defaults to 'int' in declaration
of 'wchar_t'
Include/unicodeobject.h:575:28: error: expected ';', ',' or ')' before '*'
token
Include/unicodeobject.h:593:14: warning: type defaults to 'int' in declaration
of 'wchar_t'
Include/unicodeobject.h:593:22: error: expected ';', ',' or ')' before '*'
token
In file included from Include/Python.h:85:0,
                 from Include/pgenheaders.h:10,
                 from Parser/acceler.c:13:
Include/unicodeobject.h:575:20: warning: type defaults to 'int' in declaration
of 'wchar_t'
Include/unicodeobject.h:575:28: error: expected ';', ',' or ')' before '*'
token
Include/unicodeobject.h:593:14: warning: type defaults to 'int' in declaration
of 'wchar_t'
Include/unicodeobject.h:593:22: error: expected ';', ',' or ')' before '*'
token
make[1]: *** [Modules/python.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [Parser/acceler.o] Error 1
make[1]: Leaving directory
`/home/bob/buildroot-2012.08/output/build/python-2.7.2'
make: *** [/home/bob/buildroot-2012.08/output/build/python-2.7.2/.stamp_built]
Error 2
bob at bob-virtual-machine:~/buildroot-2012.08$

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[Buildroot] [Bug 5666] Fails to build python 2.7.2 for 2440 arm

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5666

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2012-11-12 12:38:00 UTC ---
Could you please share your Buildroot .config ?

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[Buildroot] [Bug 5666] Fails to build python 2.7.2 for 2440 arm

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5666

--- Comment #2 from hardcorefs <hardcore@hardcoreforensics.com> 2012-11-12 13:04:07 UTC ---
Created attachment 4622
  --> https://bugs.busybox.net/attachment.cgi?id=4622
example of broken python build

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[Buildroot] [Bug 5666] Fails to build python 2.7.2 for 2440 arm

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5666

--- Comment #3 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2012-11-12 14:34:59 UTC ---
Ok. My guess is that:

*) You built once without WCHAR support in the toolchain (BR2_USE_WCHAR not
enabled)

*) You went back in menuconfig, enabled Python. But to do this, you enabled
WCHAR support in the toolchain. And then, instead of doing a complete "make
clean all" cycle that ensures the toolchain gets rebuilt, you just did "make".
So it tried to build Python without rebuilding the toolchain, leading to your
error.

I'm pretty sure that the problem will go away if you do a "make clean all"
cycle. I tested your configuration here and it built just fine.

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[Buildroot] [Bug 5666] Fails to build python 2.7.2 for 2440 arm

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5666

Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

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[Buildroot] [Bug 5666] Fails to build python 2.7.2 for 2440 arm

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5666

--- Comment #4 from hardcorefs <hardcore@hardcoreforensics.com> 2012-11-12 22:32:37 UTC ---
HI,
Yep you are indeed a fortune teller........
Did "make clean all" and it did solve the problem, just it extends the build
time every time.

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