Hello, In Buildroot, a number of packages fail to build because pthread_contattr_setclock() is not implemented in linuxthreads (only in NPTL). So far, we've worked around this problem by adding a dependency on NPTL in packages that use pthread_condattr_setclock(), but it would be nice if uClibc-ng could support this function in linuxthreads as well. Is there anything that prevents this from being supported in linuxthreads ? Best regards, Thomas -- Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com