[Buildroot] ci20_defconfig fails because of missing TLS support

[Arnout Vandecappelle]

 Vicente, Waldemar,

 Since some time (probably since some uClibc bump), the ci20_defconfig has been
failing with an error I don't really understand [1]:

> /usr/bin/make -j3 -C /builds/buildroot.org/buildroot/output/build/uclibc-1.0.25 ARCH="mips" CROSS_COMPILE="/builds/buildroot.org/buildroot/output/host/bin/mipsel-buildroot-linux-uclibc-" UCLIBC_EXTRA_CFLAGS=" " HOSTCC="/usr/bin/gcc"
> make[1]: Entering directory '/builds/buildroot.org/buildroot/output/build/uclibc-1.0.25'
> mipsel-buildroot-linux-uclibc-gcc.br_real: warning: '-mfused-madd' is deprecated; use '-ffp-contract=' instead
> mipsel-buildroot-linux-uclibc-gcc.br_real: warning: '-mfused-madd' is deprecated; use '-ffp-contract=' instead
> mipsel-buildroot-linux-uclibc-gcc.br_real: warning: '-mfused-madd' is deprecated; use '-ffp-contract=' instead
> mipsel-buildroot-linux-uclibc-gcc.br_real: warning: '-mfused-madd' is deprecated; use '-ffp-contract=' instead
> ####
> #### Your compiler does not support TLS and you are trying to build uClibc-ng
> #### with NPTL support. Upgrade your binutils and gcc to versions which
> #### support TLS for your architecture. Do not contact uClibc-ng maintainers
> #### about this problem.
> ####
> #### Exiting...
> ####
> Rules.mak:689: recipe for target 'gcc_tls_test_fail' failed
> make[1]: *** [gcc_tls_test_fail] Error 1
> make[1]: Leaving directory '/builds/buildroot.org/buildroot/output/build/uclibc-1.0.25'


 Could you guys have a look, so we can hopefully get a fix in 2017.08?

 Regards,
 Arnout


[1] https://gitlab.com/buildroot.org/buildroot/-/jobs/27873603


-- 
Arnout Vandecappelle                          arnout at mind be
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