Hi, building latest gdal I noticed a type mismatch, that forced me to build with "-fpermissive" on /usr/include/sys/cpuset.h #define CPU_ALLOC(num) __builtin_malloc (CPU_ALLOC_SIZE(num)) but on https://linux.die.net/man/3/cpu_alloc cpu_set_t *CPU_ALLOC(int num_cpus) so void* versus cpu_set_t* I have not checked if the other definitions are correct. Regard Marco