Am 20.07.2018 um 12:59 schrieb Helmut Grohne:
> On Sun, Jul 15, 2018 at 12:30:22PM +0200, Sven Joachim wrote:
>> Something like this, perhaps?
>>
>> ,----
>> | make[1]: Entering directory '/<<BUILDDIR>>/ncurses-6.1+20180210/obj-test'
>> | gcc -g -O2
>> | -fdebug-prefix-map=/<<BUILDDIR>>/ncurses-6.1+20180210=.
>> -fstack-protector-strong
>> | -Wformat -Werror=format-security -o cardfile ../obj-test/cardfile.o
>> | -L/<<BUILDDIR>>/ncurses-6.1+20180210/obj-wide/lib
>> | -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -I. -I../test
>> | -I../test -DHAVE_CONFIG_H -DDATA_DIR=\"/usr/share/ncurses-examples\"
>> | -Wdate-time -D_FORTIFY_SOURCE=2
>> | -I/<<BUILDDIR>>/ncurses-6.1+20180210/obj-wide/include
>> | -D_DEFAULT_SOURCE -D_DEFAULT_SOURCE -D_GNU_SOURCE -D_GNU_SOURCE -g
>> | -O2
>> | -fdebug-prefix-map=/<<BUILDDIR>>/ncurses-6.1+20180210=.
>> -fstack-protector-strong
>> | -Wformat -Werror=format-security -lformw -lmenuw -lpanelw -lncursesw
>> | -ltinfo -lutil -lm
>> | /<<BUILDDIR>>/ncurses-6.1+20180210/obj-wide/lib/libmenuw.so: file not
>> recognized: File format not recognized
>> | collect2: error: ld returned 1 exit status
>> | Makefile:302: recipe for target 'cardfile' failed
>> | make[1]: *** [cardfile] Error 1
>> | make[1]: Leaving directory '/<<BUILDDIR>>/ncurses-6.1+20180210/obj-test'
>> | debian/rules:443: recipe for target 'build-test' failed
>> `----
>
> Yes, that's what was seeing. So that's the same thing and we can
> essentially rule out hardware defects.
>
>> It would be necessary to have access to the build tree on a failure in
>> order to debug the problem, build logs alone will most likely be
>> useless. Since make currently treats -Otarget as -Oline, they have
>> become almost incomprehensible anyway. :-/
>
> My attempts at reproducing it with sbuild (native and cross) were
> fruitless, but running rebootstrap on tmpfs while enabling a parallel
> build should do. That was quite reliable on a small sample for me. Do
> you want to try yourself? Would you like me to prepare and share a tree?
I tried building ncurses on a tmpfs a few times, but it always
succeeded. So if you can tar up a build tree where it failed, that
would be appreciated.
Cheers,
Sven
