[LEDE-DEV] Strange build error

[Philip Prindeville]

> On Aug 28, 2017, at 6:17 PM, Zoltan Gyarmati <mr.zoltan.gyarmati at gmail.com> wrote:
> 
> On 08/28/2017 01:52 PM, Zoltan Gyarmati wrote:
>> Dear All,
>> 
>> i'm fighting with an odd build error on my build server VPS, using
>> current master and the RT5350F-OLINUXINO profile:
>> 
>> When trying to re-build the LEDE tree (after a successful initial
>> build), i get this error:
>> 
>>> make[5]: Entering directory
>>> '/home/zgyarmati/lede/build_dir/target-mipsel_24kc_musl/linux-ramips_rt305x/linux-4.9.44'
>>>  CHK     include/config/kernel.release
>>>  CHK     include/generated/uapi/linux/version.h
>>>  CHK     include/generated/utsrelease.h
>>>  CHK     include/generated/bounds.h
>>>  CHK     include/generated/timeconst.h
>>>  CHK     include/generated/asm-offsets.h
>>>  CALL    scripts/checksyscalls.sh
>>>  CHK     include/generated/compile.h
>>>  GEN     usr/initramfs_data.cpio
>>>  AS      usr/initramfs_data.o
>>>  LD      usr/built-in.o
>>>  AR      lib/lib.a
>>>  EXPORTS lib/lib-ksyms.o
>>>  LD      lib/built-in.o
>>>  LD      vmlinux.o
>>>  MODPOST vmlinux.o
>>>  GEN     .version
>>>  CHK     include/generated/compile.h
>>> lib/lib.a(decompress.o):(.init.rodata+0x2c): undefined reference to
>>> `unlzma'
>>> lib/lib.a(decompress.o):(.init.rodata+0x38): undefined reference to
>>> `unlzma'
>>> Makefile:972: recipe for target 'vmlinux' failed
>> The odd thing is that the same config on my laptop (Debian
>> testing/Buster) builds and rebuilds correctly, while on the VPS (Debian
>> 9/Stretch) it fails with the error above.
>> I've checked all the dependencies, digged into the environment to figure
>> out what is the significant difference, but i couldn't hunt this down.
>> My best guess it that is related to the fact that the build server runs
>> on a VPS, but no solid evidence on this yet...
>> 
>> Do you have maybe an idea where to look?
>> 
> 
> I've tried cross check with building and rebuilding Atheros
> AR7xxx/AR9xxx/8devices Carambola2 profle,
> and it builds and rebuilds without the error above in the same
> environment...


I’ll ask the obvious question… Are the .config files identical in both cases?

-Philip