./configure

grieg@r337z:~/Downloads/ruby-2.1.0$ ./configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking whether gcc needs -traditional... no
checking for ld... ld
checking whether the linker is GNU ld... yes
checking whether gcc -E accepts -o... yes
checking for __sync_val_compare_and_swap... yes
checking for ranlib... ranlib
checking for ar... ar
checking for as... as
checking for objdump... objdump
checking for objcopy... objcopy
checking for nm... nm
checking whether ln -s works... yes
checking whether make sets $(MAKE)... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for dtrace... no
checking for dot... no
checking for doxygen... no
checking for pkg-config... pkg-config
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... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for cd using physical directory... cd -P
checking whether CFLAGS is valid... yes
checking whether LDFLAGS is valid... yes
checking whether -Wno-unused-parameter is accepted as CFLAGS... yes
checking whether -Wno-parentheses is accepted as CFLAGS... yes
checking whether -Wno-long-long is accepted as CFLAGS... yes
checking whether -Wno-missing-field-initializers is accepted as CFLAGS... yes
checking whether -Wunused-variable is accepted as CFLAGS... yes
checking whether -Wpointer-arith is accepted as CFLAGS... yes
checking whether -Wwrite-strings is accepted as CFLAGS... yes
checking whether -Wdeclaration-after-statement is accepted as CFLAGS... yes
checking whether -Wshorten-64-to-32 is accepted as CFLAGS... no
checking whether -Wimplicit-function-declaration is accepted as CFLAGS... yes
checking whether -Wdivision-by-zero is accepted as CFLAGS... no
checking whether -Wextra-tokens is accepted as CFLAGS... no
checking whether -Wall -Wextra is accepted as CFLAGS... yes
checking whether -D_FORTIFY_SOURCE=2 is accepted as CFLAGS... yes
checking whether -fstack-protector is accepted as CFLAGS... yes
checking whether -fstack-protector is accepted as LDFLAGS... yes
checking whether -ansi -std=iso9899:199409 is accepted as CFLAGS... yes
checking whether -fno-strict-overflow is accepted as CFLAGS... yes
checking whether -ggdb3 is accepted as CFLAGS... yes
checking whether -fvisibility=hidden is accepted as CFLAGS... yes
checking whether -fno-fast-math is accepted as CFLAGS... yes
checking for crypt in -lcrypt... yes
checking for dlopen in -ldl... yes
checking for shl_load in -ldld... no
checking for shutdown in -lsocket... no
checking for dirent.h that defines DIR... yes
checking for library containing opendir... none required
checking for stdbool.h that conforms to C99... yes
checking for _Bool... yes
checking for sys/wait.h that is POSIX.1 compatible... yes
checking limits.h usability... yes
checking limits.h presence... yes
checking for limits.h... yes
checking sys/file.h usability... yes
checking sys/file.h presence... yes
checking for sys/file.h... yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/syscall.h usability... yes
checking sys/syscall.h presence... yes
checking for sys/syscall.h... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking sys/fcntl.h usability... yes
checking sys/fcntl.h presence... yes
checking for sys/fcntl.h... yes
checking sys/select.h usability... yes
checking sys/select.h presence... yes
checking for sys/select.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking sys/times.h usability... yes
checking sys/times.h presence... yes
checking for sys/times.h... yes
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking syscall.h usability... yes
checking syscall.h presence... yes
checking for syscall.h... yes
checking pwd.h usability... yes
checking pwd.h presence... yes
checking for pwd.h... yes
checking grp.h usability... yes
checking grp.h presence... yes
checking for grp.h... yes
checking a.out.h usability... yes
checking a.out.h presence... yes
checking for a.out.h... yes
checking utime.h usability... yes
checking utime.h presence... yes
checking for utime.h... yes
checking direct.h usability... no
checking direct.h presence... no
checking for direct.h... no
checking sys/resource.h usability... yes
checking sys/resource.h presence... yes
checking for sys/resource.h... yes
checking sys/mkdev.h usability... no
checking sys/mkdev.h presence... no
checking for sys/mkdev.h... no
checking sys/utime.h usability... no
checking sys/utime.h presence... no
checking for sys/utime.h... no
checking float.h usability... yes
checking float.h presence... yes
checking for float.h... yes
checking ieeefp.h usability... no
checking ieeefp.h presence... no
checking for ieeefp.h... no
checking ucontext.h usability... yes
checking ucontext.h presence... yes
checking for ucontext.h... yes
checking intrinsics.h usability... no
checking intrinsics.h presence... no
checking for intrinsics.h... no
checking langinfo.h usability... yes
checking langinfo.h presence... yes
checking for langinfo.h... yes
checking locale.h usability... yes
checking locale.h presence... yes
checking for locale.h... yes
checking sys/sendfile.h usability... yes
checking sys/sendfile.h presence... yes
checking for sys/sendfile.h... yes
checking time.h usability... yes
checking time.h presence... yes
checking for time.h... yes
checking net/socket.h usability... no
checking net/socket.h presence... no
checking for net/socket.h... no
checking sys/socket.h usability... yes
checking sys/socket.h presence... yes
checking for sys/socket.h... yes
checking process.h usability... no
checking process.h presence... no
checking for process.h... no
checking sys/prctl.h usability... yes
checking sys/prctl.h presence... yes
checking for sys/prctl.h... yes
checking atomic.h usability... no
checking atomic.h presence... no
checking for atomic.h... no
checking malloc.h usability... yes
checking malloc.h presence... yes
checking for malloc.h... yes
checking malloc_np.h usability... no
checking malloc_np.h presence... no
checking for malloc_np.h... no
checking malloc/malloc.h usability... no
checking malloc/malloc.h presence... no
checking for malloc/malloc.h... no
checking setjmpex.h usability... no
checking setjmpex.h presence... no
checking for setjmpex.h... no
checking gmp.h usability... no
checking gmp.h presence... no
checking for gmp.h... no
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... 64
checking whether byte ordering is bigendian... no
checking for an ANSI C-conforming const... yes
checking whether char is unsigned... no
checking for inline... __inline__
checking for working volatile... yes
checking for long long... yes
checking for off_t... yes
checking char bit... 8
checking size of int... 4
checking size of short... 2
checking size of long... 4
checking size of long long... 8
checking size of __int64... 0
checking size of __int128... 0
checking size of off_t... 8
checking size of void*... 4
checking size of float... 4
checking size of double... 8
checking size of time_t... 4
checking size of clock_t... 4
checking for printf prefix for long long... ll
checking for pid_t... yes
checking for convertible type of pid_t... INT
checking for uid_t... yes
checking for convertible type of uid_t... UINT
checking for gid_t... yes
checking for convertible type of gid_t... UINT
checking for time_t... yes
checking for convertible type of time_t... LONG
checking for dev_t... yes
checking for convertible type of dev_t... ULL
checking for mode_t... yes
checking for convertible type of mode_t... UINT
checking for rlim_t... yes
checking for convertible type of rlim_t... ULL
checking for off_t... (cached) yes
checking for convertible type of off_t... LL
checking for clockid_t... yes
checking for convertible type of clockid_t... INT
checking for prototypes... yes
checking token paste string... ansi
checking stringization... #expr
checking string literal concatenation... yes
checking for variable length prototypes and stdarg.h... yes
checking for variable length macro... yes
checking for noreturn function attribute... __attribute__ ((noreturn)) x
checking for deprecated function attribute... __attribute__ ((deprecated)) x
checking for noinline function attribute... __attribute__ ((noinline)) x
checking for stdcall function attribute... __attribute__ ((stdcall)) x
checking for cdecl function attribute... __attribute__ ((cdecl)) x
checking for fastcall function attribute... __attribute__ ((fastcall)) x
checking for function alias... alias
checking for __atomic builtins... yes
checking for __sync builtins... yes
checking for __builtin_unreachable... yes
checking for exported function attribute... __attribute__ ((visibility("default")))
checking for function name string predefined identifier... __func__
checking whether sys_nerr is declared... yes
checking whether getenv is declared... yes
checking for size_t... yes
checking size of size_t... 4
checking size of ptrdiff_t... 4
checking for printf prefix for size_t... z
checking for printf prefix for ptrdiff_t... t
checking for struct stat.st_blksize... yes
checking for struct stat.st_blocks... yes
checking for struct stat.st_rdev... yes
checking size of struct stat.st_size... SIZEOF_LONG_LONG
checking size of struct stat.st_blocks... SIZEOF_LONG_LONG
checking for struct stat.st_atim... yes
checking for struct stat.st_atimespec... no
checking for struct stat.st_atimensec... no
checking for struct stat.st_mtim... yes
checking for struct stat.st_mtimespec... no
checking for struct stat.st_mtimensec... no
checking for struct stat.st_ctim... yes
checking for struct stat.st_ctimespec... no
checking for struct stat.st_ctimensec... no
checking for struct timeval... yes
checking size of struct timeval.tv_sec... SIZEOF_TIME_T
checking for struct timespec... yes
checking for struct timezone... yes
checking for clockid_t... (cached) yes
checking for fd_mask... yes
checking for int8_t... yes
checking size of int8_t... 1
checking for uint8_t... yes
checking size of uint8_t... 1
checking for int16_t... yes
checking size of int16_t... 2
checking for uint16_t... yes
checking size of uint16_t... 2
checking for int32_t... yes
checking size of int32_t... 4
checking for uint32_t... yes
checking size of uint32_t... 4
checking for int64_t... yes
checking size of int64_t... 8
checking for uint64_t... yes
checking size of uint64_t... 8
checking for int128_t... no
checking for uint128_t... no
checking for intptr_t... yes
checking size of intptr_t... 4
checking for uintptr_t... yes
checking size of uintptr_t... 4
checking for ssize_t... yes
checking size of ssize_t... 4
checking for stack end address... __libc_stack_end
checking for uid_t in sys/types.h... (cached) yes
checking type of array argument to getgroups... gid_t
checking return type of signal handlers... void
checking for working alloca.h... yes
checking for alloca... yes
checking for dynamic size alloca... ok
checking for working memcmp... yes
checking for broken erfc of glibc-2.3.6 on IA64... no
checking for dup2... yes
checking for memmove... yes
checking for strerror... yes
checking for strchr... yes
checking for strstr... yes
checking for crypt... yes
checking for flock... yes
checking for isnan... yes
checking for finite... yes
checking for isinf... yes
checking for hypot... yes
checking for acosh... yes
checking for erf... yes
checking for tgamma... yes
checking for lgamma_r... yes
checking for cbrt... yes
checking for strlcpy... no
checking for strlcat... no
checking for ffs... yes
checking for setproctitle... no
checking sys/pstat.h usability... no
checking sys/pstat.h presence... no
checking for sys/pstat.h... no
checking for signbit... yes
checking for __syscall... no
checking for _longjmp... yes
checking for _setjmp... yes
checking for _setjmpex... no
checking for chroot... yes
checking for chsize... no
checking for clock_gettime... yes
checking for cosh... yes
checking for daemon... (cached) no
checking for dl_iterate_phdr... yes
checking for dlopen... yes
checking for dup... yes
checking for dup3... yes
checking for eaccess... yes
checking for endgrent... yes
checking for fchmod... yes
checking for fchown... yes
checking for fcntl... yes
checking for fdatasync... yes
checking for fmod... yes
checking for fork... yes
checking for fsync... yes
checking for ftruncate... yes
checking for ftruncate64... yes
checking for getcwd... yes
checking for getgrnam_r... yes
checking for getgroups... yes
checking for getpgid... yes
checking for getpgrp... yes
checking for getpriority... yes
checking for getpwnam_r... yes
checking for getrlimit... yes
checking for getsid... yes
checking for gettimeofday... yes
checking for gmtime_r... yes
checking for initgroups... yes
checking for ioctl... yes
checking for issetugid... no
checking for killpg... yes
checking for lchmod... no
checking for lchown... yes
checking for link... yes
checking for llabs... yes
checking for lockf... yes
checking for log2... yes
checking for lstat... yes
checking for malloc_usable_size... yes
checking for malloc_size... no
checking for mblen... yes
checking for memalign... yes
checking for memrchr... yes
checking for mktime... yes
checking for pipe2... yes
checking for poll... yes
checking for posix_fadvise... yes
checking for posix_memalign... yes
checking for ppoll... yes
checking for pread... yes
checking for readlink... yes
checking for round... yes
checking for seekdir... yes
checking for select_large_fdset... no
checking for sendfile... yes
checking for setegid... yes
checking for setenv... yes
checking for seteuid... yes
checking for setgid... yes
checking for setgroups... yes
checking for setpgid... yes
checking for setpgrp... yes
checking for setregid... yes
checking for setresgid... yes
checking for setresuid... yes
checking for setreuid... yes
checking for setrgid... no
checking for setrlimit... yes
checking for setruid... no
checking for setsid... yes
checking for setuid... yes
checking for shutdown... yes
checking for sigaction... yes
checking for sigaltstack... yes
checking for sigprocmask... yes
checking for sinh... yes
checking for spawnv... no
checking for symlink... yes
checking for syscall... yes
checking for sysconf... yes
checking for tanh... yes
checking for telldir... yes
checking for timegm... yes
checking for times... yes
checking for truncate... yes
checking for truncate64... yes
checking for unsetenv... yes
checking for utimensat... yes
checking for utimes... yes
checking for wait4... yes
checking for waitpid... yes
checking for __builtin_bswap16... yes
checking for __builtin_bswap32... yes
checking for __builtin_bswap64... yes
checking for __builtin_clz... yes
checking for __builtin_clzl... yes
checking for __builtin_clzll... yes
checking for __builtin_choose_expr... yes
checking for __builtin_types_compatible_p... yes
checking for clock_getres... yes
checking for unsetenv returns a value... yes
checking for sigsetjmp as a macro or function... yes
checking for __builtin_setjmp... no
checking for setjmp type... _setjmp
checking whether struct tm is in sys/time.h or time.h... time.h
checking for struct tm.tm_zone... yes
checking for struct tm.tm_gmtoff... yes
checking for external int daylight... yes
checking for external timezone... long
checking for external altzone... no
checking for timezone... yes
checking whether timezone requires zero arguments... yes
checking for negative time_t for gmtime(3)... yes
checking for localtime(3) overflow correctly... yes
checking whether right shift preserve sign bit... yes
checking read count field in FILE structures... not found (OK if using GNU libc)
checking read buffer ptr field in FILE structures... _IO_read_ptr
checking read buffer end field in FILE structures... _IO_read_end
checking size of struct stat.st_ino... SIZEOF_LONG_LONG
checking whether _SC_CLK_TCK is supported... yes
checking stack growing direction on i686... -1
checking for pthread_kill in -lthr... no
checking for pthread_kill in -lpthread... yes
checking for pthread_np.h... no
checking for sched_yield... yes
checking for pthread_attr_setinheritsched... yes
checking for pthread_getattr_np... yes
checking for pthread_attr_get_np... no
checking for pthread_attr_getstack... yes
checking for pthread_get_stackaddr_np... no
checking for pthread_get_stacksize_np... no
checking for thr_stksegment... no
checking for pthread_stackseg_np... no
checking for pthread_getthrds_np... no
checking for pthread_cond_init... yes
checking for pthread_condattr_setclock... yes
checking for pthread_condattr_init... yes
checking for pthread_sigmask... yes
checking for pthread_attr_init... yes
checking for getcontext... yes
checking for setcontext... yes
checking if fork works with pthread... yes
checking whether ELF binaries are produced... yes
checking elf.h usability... yes
checking elf.h presence... yes
checking for elf.h... yes
checking elf_abi.h usability... no
checking elf_abi.h presence... no
checking for elf_abi.h... no
checking whether OS depend dynamic link works... yes
checking for backtrace... yes
checking for broken backtrace... no
checking valgrind/memcheck.h usability... no
checking valgrind/memcheck.h presence... no
checking for valgrind/memcheck.h... no
checking for strip... strip
checking whether -fPIE is accepted as CFLAGS... yes
checking whether -pie is accepted as LDFLAGS... yes
checking for prefix of external symbols... NONE
checking pthread.h usability... yes
checking pthread.h presence... yes
checking for pthread.h... yes
checking if make is GNU make... yes
checking for memmem... yes
checking for broken memmem... no
checking for nroff... /usr/bin/nroff
.ext/include/i686-linux/ruby/config.h unchanged
ruby library version = 2.1.0
configure: creating ./config.status
config.status: creating GNUmakefile
config.status: creating Makefile
config.status: creating ruby-2.1.pc