I'm working on an iMac (27" mid 2010) running OSX 10.11.3.

I'm trying to build Python3.5.0 for use with pyqtdeploy. 

If I build python without specifying "--enable-universalsdk", I get multiple warnings "clang: warning: no such sysroot directory: '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk'" on trying to build PyQt5. 

If I specify "--enable-universalsdk" while building Python, I get an error "ld: symbol(s) not found for architecture i386" from the 'make' command. 

If I then specify "--with-universal-archs=64-bit", I get the output below, which includes a number of requests to report this here.

David$ /Users/David/OpenSource/Python-3.5.0/configure --prefix /Users/David/OpenSource/PyQtDeploy/python --enable-universalsdk --with-universal-archs=64-bit
checking build system type... x86_64-apple-darwin15.3.0
checking host system type... x86_64-apple-darwin15.3.0
checking for --enable-universalsdk... /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk
checking for --with-universal-archs... 64-bit
checking MACHDEP... darwin
checking for --without-gcc... no
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
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 how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for --with-cxx-main=<compiler>... no
checking for g++... no
configure:

  By default, distutils will build C++ extension modules with "g++".
  If this is not intended, then set CXX on the configure command line.
  
checking for the platform triplet based on compiler characteristics... darwin
checking for -Wl,--no-as-needed... no
checking for egrep... /usr/bin/grep -E
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 --with-suffix... 
checking for case-insensitive build directory... yes
checking LIBRARY... libpython$(VERSION)$(ABIFLAGS).a
checking LINKCC... $(PURIFY) $(MAINCC)
checking for GNU ld... no
checking for inline... inline
checking for --enable-shared... no
checking for --enable-profiling... no
checking LDLIBRARY... libpython$(VERSION)$(ABIFLAGS).a
checking for ranlib... ranlib
checking for ar... ar
checking for readelf... no
checking for python3.5... python3.5
checking for python3.5... (cached) python3.5
checking for a BSD-compatible install... /usr/bin/install -c
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for --with-pydebug... no
checking whether gcc accepts and needs -fno-strict-aliasing... no
checking if we can turn off gcc unused result warning... yes
checking for -Werror=declaration-after-statement... yes
checking if we can turn on gcc mixed sign comparison warning... yes
checking if we can turn on gcc unreachable code warning... yes
checking which compiler should be used... gcc
checking which MACOSX_DEPLOYMENT_TARGET to use... 10.9
checking whether pthreads are available without options... no
checking whether gcc accepts -Kpthread... no
checking whether gcc accepts -Kthread... no
checking whether gcc accepts -pthread... no
checking whether g++ also accepts flags for thread support... no
checking for ANSI C header files... (cached) yes
checking asm/types.h usability... no
checking asm/types.h presence... no
checking for asm/types.h... no
checking conio.h usability... no
checking conio.h presence... no
checking for conio.h... no
checking direct.h usability... no
checking direct.h presence... no
checking for direct.h... no
checking dlfcn.h usability... no
checking dlfcn.h presence... yes
configure: WARNING: dlfcn.h: present but cannot be compiled
configure: WARNING: dlfcn.h:     check for missing prerequisite headers?
configure: WARNING: dlfcn.h: see the Autoconf documentation
configure: WARNING: dlfcn.h:     section "Present But Cannot Be Compiled"
configure: WARNING: dlfcn.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for dlfcn.h... no
checking errno.h usability... no
checking errno.h presence... yes
configure: WARNING: errno.h: present but cannot be compiled
configure: WARNING: errno.h:     check for missing prerequisite headers?
configure: WARNING: errno.h: see the Autoconf documentation
configure: WARNING: errno.h:     section "Present But Cannot Be Compiled"
configure: WARNING: errno.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for errno.h... no
checking fcntl.h usability... no
checking fcntl.h presence... yes
configure: WARNING: fcntl.h: present but cannot be compiled
configure: WARNING: fcntl.h:     check for missing prerequisite headers?
configure: WARNING: fcntl.h: see the Autoconf documentation
configure: WARNING: fcntl.h:     section "Present But Cannot Be Compiled"
configure: WARNING: fcntl.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for fcntl.h... no
checking grp.h usability... no
checking grp.h presence... yes
configure: WARNING: grp.h: present but cannot be compiled
configure: WARNING: grp.h:     check for missing prerequisite headers?
configure: WARNING: grp.h: see the Autoconf documentation
configure: WARNING: grp.h:     section "Present But Cannot Be Compiled"
configure: WARNING: grp.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for grp.h... no
checking ieeefp.h usability... no
checking ieeefp.h presence... no
checking for ieeefp.h... no
checking io.h usability... no
checking io.h presence... no
checking for io.h... no
checking langinfo.h usability... no
checking langinfo.h presence... yes
configure: WARNING: langinfo.h: present but cannot be compiled
configure: WARNING: langinfo.h:     check for missing prerequisite headers?
configure: WARNING: langinfo.h: see the Autoconf documentation
configure: WARNING: langinfo.h:     section "Present But Cannot Be Compiled"
configure: WARNING: langinfo.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for langinfo.h... no
checking libintl.h usability... no
checking libintl.h presence... no
checking for libintl.h... no
checking process.h usability... no
checking process.h presence... no
checking for process.h... no
checking pthread.h usability... no
checking pthread.h presence... yes
configure: WARNING: pthread.h: present but cannot be compiled
configure: WARNING: pthread.h:     check for missing prerequisite headers?
configure: WARNING: pthread.h: see the Autoconf documentation
configure: WARNING: pthread.h:     section "Present But Cannot Be Compiled"
configure: WARNING: pthread.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for pthread.h... no
checking sched.h usability... no
checking sched.h presence... yes
configure: WARNING: sched.h: present but cannot be compiled
configure: WARNING: sched.h:     check for missing prerequisite headers?
configure: WARNING: sched.h: see the Autoconf documentation
configure: WARNING: sched.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sched.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sched.h... no
checking shadow.h usability... no
checking shadow.h presence... no
checking for shadow.h... no
checking signal.h usability... no
checking signal.h presence... yes
configure: WARNING: signal.h: present but cannot be compiled
configure: WARNING: signal.h:     check for missing prerequisite headers?
configure: WARNING: signal.h: see the Autoconf documentation
configure: WARNING: signal.h:     section "Present But Cannot Be Compiled"
configure: WARNING: signal.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for signal.h... no
checking for stdint.h... (cached) yes
checking stropts.h usability... no
checking stropts.h presence... no
checking for stropts.h... no
checking termios.h usability... no
checking termios.h presence... yes
configure: WARNING: termios.h: present but cannot be compiled
configure: WARNING: termios.h:     check for missing prerequisite headers?
configure: WARNING: termios.h: see the Autoconf documentation
configure: WARNING: termios.h:     section "Present But Cannot Be Compiled"
configure: WARNING: termios.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for termios.h... no
checking for unistd.h... (cached) yes
checking utime.h usability... no
checking utime.h presence... yes
configure: WARNING: utime.h: present but cannot be compiled
configure: WARNING: utime.h:     check for missing prerequisite headers?
configure: WARNING: utime.h: see the Autoconf documentation
configure: WARNING: utime.h:     section "Present But Cannot Be Compiled"
configure: WARNING: utime.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for utime.h... no
checking poll.h usability... no
checking poll.h presence... yes
configure: WARNING: poll.h: present but cannot be compiled
configure: WARNING: poll.h:     check for missing prerequisite headers?
configure: WARNING: poll.h: see the Autoconf documentation
configure: WARNING: poll.h:     section "Present But Cannot Be Compiled"
configure: WARNING: poll.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for poll.h... no
checking sys/devpoll.h usability... no
checking sys/devpoll.h presence... no
checking for sys/devpoll.h... no
checking sys/epoll.h usability... no
checking sys/epoll.h presence... no
checking for sys/epoll.h... no
checking sys/poll.h usability... no
checking sys/poll.h presence... yes
configure: WARNING: sys/poll.h: present but cannot be compiled
configure: WARNING: sys/poll.h:     check for missing prerequisite headers?
configure: WARNING: sys/poll.h: see the Autoconf documentation
configure: WARNING: sys/poll.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/poll.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/poll.h... no
checking sys/audioio.h usability... no
checking sys/audioio.h presence... no
checking for sys/audioio.h... no
checking sys/xattr.h usability... no
checking sys/xattr.h presence... yes
configure: WARNING: sys/xattr.h: present but cannot be compiled
configure: WARNING: sys/xattr.h:     check for missing prerequisite headers?
configure: WARNING: sys/xattr.h: see the Autoconf documentation
configure: WARNING: sys/xattr.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/xattr.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/xattr.h... no
checking sys/bsdtty.h usability... no
checking sys/bsdtty.h presence... no
checking for sys/bsdtty.h... no
checking sys/event.h usability... no
checking sys/event.h presence... yes
configure: WARNING: sys/event.h: present but cannot be compiled
configure: WARNING: sys/event.h:     check for missing prerequisite headers?
configure: WARNING: sys/event.h: see the Autoconf documentation
configure: WARNING: sys/event.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/event.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/event.h... no
checking sys/file.h usability... no
checking sys/file.h presence... yes
configure: WARNING: sys/file.h: present but cannot be compiled
configure: WARNING: sys/file.h:     check for missing prerequisite headers?
configure: WARNING: sys/file.h: see the Autoconf documentation
configure: WARNING: sys/file.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/file.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/file.h... no
checking sys/ioctl.h usability... no
checking sys/ioctl.h presence... yes
configure: WARNING: sys/ioctl.h: present but cannot be compiled
configure: WARNING: sys/ioctl.h:     check for missing prerequisite headers?
configure: WARNING: sys/ioctl.h: see the Autoconf documentation
configure: WARNING: sys/ioctl.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/ioctl.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/ioctl.h... no
checking sys/kern_control.h usability... no
checking sys/kern_control.h presence... yes
configure: WARNING: sys/kern_control.h: present but cannot be compiled
configure: WARNING: sys/kern_control.h:     check for missing prerequisite headers?
configure: WARNING: sys/kern_control.h: see the Autoconf documentation
configure: WARNING: sys/kern_control.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/kern_control.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/kern_control.h... no
checking sys/loadavg.h usability... no
checking sys/loadavg.h presence... no
checking for sys/loadavg.h... no
checking sys/lock.h usability... no
checking sys/lock.h presence... yes
configure: WARNING: sys/lock.h: present but cannot be compiled
configure: WARNING: sys/lock.h:     check for missing prerequisite headers?
configure: WARNING: sys/lock.h: see the Autoconf documentation
configure: WARNING: sys/lock.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/lock.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/lock.h... no
checking sys/mkdev.h usability... no
checking sys/mkdev.h presence... no
checking for sys/mkdev.h... no
checking sys/modem.h usability... no
checking sys/modem.h presence... no
checking for sys/modem.h... no
checking sys/param.h usability... no
checking sys/param.h presence... yes
configure: WARNING: sys/param.h: present but cannot be compiled
configure: WARNING: sys/param.h:     check for missing prerequisite headers?
configure: WARNING: sys/param.h: see the Autoconf documentation
configure: WARNING: sys/param.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/param.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/param.h... no
checking sys/select.h usability... no
checking sys/select.h presence... yes
configure: WARNING: sys/select.h: present but cannot be compiled
configure: WARNING: sys/select.h:     check for missing prerequisite headers?
configure: WARNING: sys/select.h: see the Autoconf documentation
configure: WARNING: sys/select.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/select.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/select.h... no
checking sys/sendfile.h usability... no
checking sys/sendfile.h presence... no
checking for sys/sendfile.h... no
checking sys/socket.h usability... no
checking sys/socket.h presence... yes
configure: WARNING: sys/socket.h: present but cannot be compiled
configure: WARNING: sys/socket.h:     check for missing prerequisite headers?
configure: WARNING: sys/socket.h: see the Autoconf documentation
configure: WARNING: sys/socket.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/socket.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/socket.h... no
checking sys/statvfs.h usability... no
checking sys/statvfs.h presence... yes
configure: WARNING: sys/statvfs.h: present but cannot be compiled
configure: WARNING: sys/statvfs.h:     check for missing prerequisite headers?
configure: WARNING: sys/statvfs.h: see the Autoconf documentation
configure: WARNING: sys/statvfs.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/statvfs.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/statvfs.h... no
checking for sys/stat.h... (cached) yes
checking sys/syscall.h usability... no
checking sys/syscall.h presence... yes
configure: WARNING: sys/syscall.h: present but cannot be compiled
configure: WARNING: sys/syscall.h:     check for missing prerequisite headers?
configure: WARNING: sys/syscall.h: see the Autoconf documentation
configure: WARNING: sys/syscall.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/syscall.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/syscall.h... no
checking sys/sys_domain.h usability... no
checking sys/sys_domain.h presence... yes
configure: WARNING: sys/sys_domain.h: present but cannot be compiled
configure: WARNING: sys/sys_domain.h:     check for missing prerequisite headers?
configure: WARNING: sys/sys_domain.h: see the Autoconf documentation
configure: WARNING: sys/sys_domain.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/sys_domain.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/sys_domain.h... no
checking sys/termio.h usability... no
checking sys/termio.h presence... no
checking for sys/termio.h... no
checking sys/time.h usability... no
checking sys/time.h presence... yes
configure: WARNING: sys/time.h: present but cannot be compiled
configure: WARNING: sys/time.h:     check for missing prerequisite headers?
configure: WARNING: sys/time.h: see the Autoconf documentation
configure: WARNING: sys/time.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/time.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/time.h... no
checking sys/times.h usability... no
checking sys/times.h presence... yes
configure: WARNING: sys/times.h: present but cannot be compiled
configure: WARNING: sys/times.h:     check for missing prerequisite headers?
configure: WARNING: sys/times.h: see the Autoconf documentation
configure: WARNING: sys/times.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/times.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/times.h... no
checking for sys/types.h... (cached) yes
checking sys/uio.h usability... no
checking sys/uio.h presence... yes
configure: WARNING: sys/uio.h: present but cannot be compiled
configure: WARNING: sys/uio.h:     check for missing prerequisite headers?
configure: WARNING: sys/uio.h: see the Autoconf documentation
configure: WARNING: sys/uio.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/uio.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/uio.h... no
checking sys/un.h usability... no
checking sys/un.h presence... yes
configure: WARNING: sys/un.h: present but cannot be compiled
configure: WARNING: sys/un.h:     check for missing prerequisite headers?
configure: WARNING: sys/un.h: see the Autoconf documentation
configure: WARNING: sys/un.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/un.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/un.h... no
checking sys/utsname.h usability... no
checking sys/utsname.h presence... yes
configure: WARNING: sys/utsname.h: present but cannot be compiled
configure: WARNING: sys/utsname.h:     check for missing prerequisite headers?
configure: WARNING: sys/utsname.h: see the Autoconf documentation
configure: WARNING: sys/utsname.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/utsname.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/utsname.h... no
checking sys/wait.h usability... no
checking sys/wait.h presence... yes
configure: WARNING: sys/wait.h: present but cannot be compiled
configure: WARNING: sys/wait.h:     check for missing prerequisite headers?
configure: WARNING: sys/wait.h: see the Autoconf documentation
configure: WARNING: sys/wait.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/wait.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/wait.h... no
checking pty.h usability... no
checking pty.h presence... no
checking for pty.h... no
checking libutil.h usability... no
checking libutil.h presence... no
checking for libutil.h... no
checking sys/resource.h usability... no
checking sys/resource.h presence... yes
configure: WARNING: sys/resource.h: present but cannot be compiled
configure: WARNING: sys/resource.h:     check for missing prerequisite headers?
configure: WARNING: sys/resource.h: see the Autoconf documentation
configure: WARNING: sys/resource.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/resource.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sys/resource.h... no
checking netpacket/packet.h usability... no
checking netpacket/packet.h presence... no
checking for netpacket/packet.h... no
checking sysexits.h usability... no
checking sysexits.h presence... yes
configure: WARNING: sysexits.h: present but cannot be compiled
configure: WARNING: sysexits.h:     check for missing prerequisite headers?
configure: WARNING: sysexits.h: see the Autoconf documentation
configure: WARNING: sysexits.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sysexits.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for sysexits.h... no
checking bluetooth.h usability... no
checking bluetooth.h presence... no
checking for bluetooth.h... no
checking bluetooth/bluetooth.h usability... no
checking bluetooth/bluetooth.h presence... no
checking for bluetooth/bluetooth.h... no
checking linux/tipc.h usability... no
checking linux/tipc.h presence... no
checking for linux/tipc.h... no
checking spawn.h usability... no
checking spawn.h presence... yes
configure: WARNING: spawn.h: present but cannot be compiled
configure: WARNING: spawn.h:     check for missing prerequisite headers?
configure: WARNING: spawn.h: see the Autoconf documentation
configure: WARNING: spawn.h:     section "Present But Cannot Be Compiled"
configure: WARNING: spawn.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for spawn.h... no
checking util.h usability... no
checking util.h presence... yes
configure: WARNING: util.h: present but cannot be compiled
configure: WARNING: util.h:     check for missing prerequisite headers?
configure: WARNING: util.h: see the Autoconf documentation
configure: WARNING: util.h:     section "Present But Cannot Be Compiled"
configure: WARNING: util.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for util.h... no
checking alloca.h usability... no
checking alloca.h presence... yes
configure: WARNING: alloca.h: present but cannot be compiled
configure: WARNING: alloca.h:     check for missing prerequisite headers?
configure: WARNING: alloca.h: see the Autoconf documentation
configure: WARNING: alloca.h:     section "Present But Cannot Be Compiled"
configure: WARNING: alloca.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for alloca.h... no
checking endian.h usability... no
checking endian.h presence... no
checking for endian.h... no
checking sys/endian.h usability... no
checking sys/endian.h presence... no
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checking for dirent.h that defines DIR... no
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checking whether sys/types.h defines makedev... no
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checking sys/sysmacros.h usability... no
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checking for net/if.h... no
checking for linux/netlink.h... no
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checking for linux/can/bcm.h... no
checking for clock_t in time.h... yes
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checking Solaris LFS bug... yes
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checking for uid_t in sys/types.h... yes
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checking size of int... 0
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checking size of short... 0
checking size of float... 0
checking size of double... 0
checking size of fpos_t... 0
checking size of size_t... 0
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checking for long long support... no
checking for long double support... no
checking for _Bool support... no
checking for uintptr_t... no
checking size of off_t... 0
checking whether to enable large file support... no
checking size of time_t... 0
checking for pthread_t... no
checking for --enable-framework... no
checking for dyld... always on for Darwin
checking the extension of shared libraries... .so
checking LDSHARED... $(CC) -bundle -undefined dynamic_lookup
checking CCSHARED... 
checking LINKFORSHARED... -Wl,-stack_size,1000000  -framework CoreFoundation
checking CFLAGSFORSHARED... 
checking SHLIBS... $(LIBS)
checking for sendfile in -lsendfile... no
checking for dlopen in -ldl... no
checking for shl_load in -ldld... no
checking for RAND_egd in -lcrypto... no
checking for library containing sem_init... no
checking for textdomain in -lintl... no
checking aligned memory access is required... yes
checking for --with-hash-algorithm... default
checking for --with-address-sanitizer... no
checking for t_open in -lnsl... no
checking for socket in -lsocket... no
checking for --with-libs... no
checking for pkg-config... /opt/local/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for --with-system-expat... no
checking for --with-system-ffi... no
checking for --with-system-libmpdec... no
checking for --enable-loadable-sqlite-extensions... no
checking for --with-tcltk-includes... default
checking for --with-tcltk-libs... default
checking for --with-dbmliborder... 
checking for --with-signal-module... yes
checking for --with-threads... yes
checking for _POSIX_THREADS in unistd.h... yes
checking for pthread_create in -lpthread... checking for pthread_detach... no
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checking for pthread_create in -lc_r... no
checking for __pthread_create_system in -lpthread... no
checking for pthread_create in -lcma... no
checking for usconfig in -lmpc... no
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checking if --enable-ipv6 is specified... no
checking for CAN_RAW_FD_FRAMES... no
checking for OSX 10.5 SDK or later... no
checking for --with-doc-strings... yes
checking for --with-tsc... no
checking for --with-pymalloc... yes
checking for --with-valgrind... no
checking for dlopen... no
checking DYNLOADFILE... dynload_stub.o
checking MACHDEP_OBJS... none
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checking whether struct tm is in sys/time.h or time.h... sys/time.h
checking for struct tm.tm_zone... no
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checking whether we can use gcc inline assembler to get and set x87 control word... no
checking whether we can use gcc inline assembler to get and set mc68881 fpcr... no
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checking digit size for Python's longs... no value specified
checking wchar.h usability... no
checking wchar.h presence... yes
configure: WARNING: wchar.h: present but cannot be compiled
configure: WARNING: wchar.h:     check for missing prerequisite headers?
configure: WARNING: wchar.h: see the Autoconf documentation
configure: WARNING: wchar.h:     section "Present But Cannot Be Compiled"
configure: WARNING: wchar.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for wchar.h... no
checking for UCS-4 tcl... no
/Users/David/OpenSource/Python-3.5.0/configure: line 14108: test: : integer expression expected
no usable wchar_t found
checking whether byte ordering is bigendian... yes
checking ABIFLAGS... m
checking SOABI... cpython-35m-darwin
checking LDVERSION... $(VERSION)$(ABIFLAGS)
checking whether right shift extends the sign bit... no
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checking how to link readline libs... none
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checking for working tzset()... no
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checking curses.h usability... no
checking curses.h presence... yes
configure: WARNING: curses.h: present but cannot be compiled
configure: WARNING: curses.h:     check for missing prerequisite headers?
configure: WARNING: curses.h: see the Autoconf documentation
configure: WARNING: curses.h:     section "Present But Cannot Be Compiled"
configure: WARNING: curses.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for curses.h... no
checking ncurses.h usability... no
checking ncurses.h presence... yes
configure: WARNING: ncurses.h: present but cannot be compiled
configure: WARNING: ncurses.h:     check for missing prerequisite headers?
configure: WARNING: ncurses.h: see the Autoconf documentation
configure: WARNING: ncurses.h:     section "Present But Cannot Be Compiled"
configure: WARNING: ncurses.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------- ##
configure: WARNING:     ## Report this to http://bugs.python.org/ ##
configure: WARNING:     ## -------------------------------------- ##
checking for ncurses.h... no
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checking whether WINDOW has _flags... no
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configure: checking for device files
checking for /dev/ptmx... yes
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checking whether gcc supports computed gotos... no
checking for build directories... done
checking for -O2... yes
checking for glibc _FORTIFY_SOURCE/memmove bug... yes
checking for stdatomic.h... no
checking for GCC >= 4.7 __atomic builtins... no
checking for ensurepip... upgrade
checking if the dirent structure of a d_type field... no
checking for the Linux getrandom() syscall... no
configure: creating ./config.status
config.status: creating Makefile.pre
config.status: creating Modules/Setup.config
config.status: creating Misc/python.pc
config.status: creating Misc/python-config.sh
config.status: creating Modules/ld_so_aix
config.status: creating pyconfig.h
creating Modules/Setup
creating Modules/Setup.local
creating Makefile

I can't speak to issues with PyQt5 since that is not part of the Python standard library but you shouldn't need additional configure options just to build Python itself. Make sure you have installed the latest version of Xcode for your release via the App Store app update pane and that you have installed the corresponding latest version of the Xcode Command Line Tools with:

xcode-select --install

Then start with a clean build directory.

Thanks, I’ve done that (a couple of times). I posted this not so much because of my problems with PyQt, but because the output of the Python build when I used those two options asked me to report this as a bug.

cheers,

David

> On Feb 2, 2016, at 9:27 AM, Ned Deily <report@bugs.python.org> wrote:
> 
> 
> Ned Deily added the comment:
> 
> I can't speak to issues with PyQt5 since that is not part of the Python standard library but you shouldn't need additional configure options just to build Python itself. Make sure you have installed the latest version of Xcode for your release via the App Store app update pane and that you have installed the corresponding latest version of the Xcode Command Line Tools with:
> 
> xcode-select --install
> 
> Then start with a clean build directory.
> 
> ----------
> 
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue26265>
> _______________________________________

OK, thanks for reporting it.  A couple of things. I'm not sure why the PyQt5 build is looking for the MacOSX10.10.sdk as you report.  There do seem to be some issues building a universal Python when using a current default Xcode SDK; I'm going to leave this issue open to investigate those.  You can get around those issues by using --enable-universalsdk=/ which uses the header files and libraries installed in traditional locations by the Command Line Tools rather than from the SDK locations.  Also, as documented in the Mac README (https://hg.python.org/cpython/file/3.5/Mac/README) where universal builds are described, --with-universal-archs=64-bit is a legacy configuration option that is only supported with an OS X 10.5 SDK, because it includes ppc64 which is no longer supported by current Xcode compilers.  On current systems, building with no --with-universal-archs option specified will produce 64-bit Intel binaries.  Finally, depending on what your needs are, it might be easier to install PyQt5 and Python 3.5 from a third-party distributor, like Homebrew, MacPorts, or conda.

Upon further investigation, the issues I saw building a universal Python when using a current default Xcode SDK were due to the introduction in Xcode 7 of the new textual stub libraries in SDKs, the problem described in Issue25136. So I'm closing this issue as a duplicate of that one.