# uClibc second-part option if THREADS_LT && !LIBC_UCLIBC_NG_1_0_15_or_later choice bool prompt "Linuxthread implementation: " default LIBC_UCLIBC_LNXTHRD_OLD config LIBC_UCLIBC_LNXTHRD_OLD bool prompt "old/stable" help From the uClibc config option help: There are two versions of linuxthreads. The older (stable) version has been in uClibc for quite a long time but hasn't seen too many updates other than bugfixes. config LIBC_UCLIBC_LNXTHRD_NEW bool prompt "new" help From the uClibc config option help: The new version has not been tested much, and lacks ports for arches which glibc does not support (like frv, etc...), but is based on the latest code from glibc, so it may be the only choice for the newer ports (like alpha/amd64/64bit arches and hppa). endchoice endif # THREADS_LT # uClibc-ng 1.0.15 did away with 2 implementations of linuxthreads config LIBC_UCLIBC_LNXTHRD string default "" if THREADS_NONE default "" if THREADS_NATIVE default "" if LIBC_UCLIBC_NG_1_0_15_or_later default "old" if LIBC_UCLIBC_LNXTHRD_OLD default "new" if LIBC_UCLIBC_LNXTHRD_NEW config LIBC_UCLIBC_LOCALES bool select LIBC_UCLIBC_WCHAR prompt "Add support for locales" help Say y if you want uClibc to support localisation. Note that seems to be broken on recent uClibc releases. config LIBC_UCLIBC_LOCALES_PREGEN_DATA bool prompt "Use pregen locales" depends on LIBC_UCLIBC_LOCALES depends on ! LIBC_UCLIBC_NG default y help If you see issues with using pre-generated locales data, you can try switching this off. If so, please report the issue, so we can default this to off if too many people complain. config LIBC_UCLIBC_IPV6 bool prompt "Add support for IPv6" help Say y if you want uClibc to support IPv6. config LIBC_UCLIBC_WCHAR bool prompt "Add support for WCHAR" help Say y if you want uClibc to support WCHAR. Maybe this is needed, if you're building a C++-Compiler config LIBC_UCLIBC_FENV bool prompt "Add support for fenv.h" default y if ARCH_x86 help fenv.h provides functions to control the floating point environment, such as rounding mode, exceptions... For some architectures, fenv.h is incomplete, so is not installed by default. x86 is known to have a rather complete fenv.h, so it is installed by default only for x86. If you need fenv.h on other architectures, say 'y' here, but you may encounter some issues. config LIBC_UCLIBC_RPC bool prompt "Add support for RPC" help Enable support for remote procedure calls (RPC) in uClibc. if ARCH_arm config LIBC_UCLIBC_USE_GNU_SUFFIX bool default y prompt "Use -uclibcgnueabi suffix" help Depending on where the resulting toolchain will be used, you may need to tweak the "system" part of the target tuple. Buildroot prefers to have arm-*-linux-uclibcgnueabi; OpenEmbedded prefers arm-*-linux-uclibceabi. Other tools seem to either accept both, or don't care about the suffix. endif