checking whether to use symlinks for manpages... no checking whether to compress the manpages... no checking whether to add a package name suffix for the manpages... no checking for gcc... cc checking for C compiler default output... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... no checking whether cc accepts -g... yes checking for cc option to accept ANSI C... none needed checking how to run the C preprocessor... cc -E checking for egrep... egrep checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... no checking for unistd.h... yes checking dirent.h... yes checking errno.h usability... yes checking errno.h presence... yes checking for errno.h... yes checking float.h usability... yes checking float.h presence... yes checking for float.h... yes checking values.h usability... yes checking values.h presence... yes checking for values.h... yes checking limits.h usability... yes checking limits.h presence... yes checking for limits.h... yes checking for stdlib.h... (cached) yes checking for string.h... (cached) yes checking sys/wait.h usability... yes checking sys/wait.h presence... yes checking for sys/wait.h... yes checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking sys/param.h usability... yes checking sys/param.h presence... yes checking for sys/param.h... yes checking for building with threads... yes checking for pthread_mutex_init in -lpthread... yes checking for pthread_attr_setstacksize... yes checking for pthread_attr_get_np... no checking for pthread_getattr_np... no checking for readdir_r... yes configure: error: unknown number of args for readdir_r