The Bootlin external toolchain file Config.in.options contains multiple occurrences of "select BR2_TOOLCHAIN_HAS_THREADS". See for example [1]. This file is generated by the support/scripts/gen-bootlin-toolchains script from the information published at [2]. Those multiple occurrences happens with toolchains having BR2_TOOLCHAIN_HAS_THREADS_DEBUG and/or BR2_TOOLCHAIN_HAS_THREADS_NPTL. Since the script uses the startswith() method, the _HAS_THREADS selection is also generated for _HAS_THREADS_DEBUG and _HAS_THREADS_NPTL. See [3]. This commit solve the issue by adding a '=' character to make sure the test will be distinct from other strings having the same prefix. Note: there is no functional problem due to those multiple selections, since it is allowed by Kconfig. This commit is simply cosmetic, for correctness. [1] https://gitlab.com/buildroot.org/buildroot/-/blob/2025.08/toolchain/toolchain-external/toolchain-external-bootlin/Config.in.options#L167 [2] https://toolchains.bootlin.com/ [3] https://gitlab.com/buildroot.org/buildroot/-/blob/2025.08/support/scripts/gen-bootlin-toolchains#L366 Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Julien Olivain <ju.o@free.fr>