Hi, Unfortunately none of these options will tell you if a x86_64 Mac OS X GCC installation will support cross-compiling for PPC, let alone LLVM. For my Mac 10.6 build machine, it is x86_64 but the Xcode installed supports cross-compiling for the PPC and i386 targets. This is the challenge, determining which targets can be cross-compiled. This is a Mac only issue as this cross-compilation is used to build the 'Universal binary', or in this case 3 way PPC, i386, and x86_64. There is no such concept in Linux or Windows.
This is a really tough problem, made much more difficult by having LLVM pretending to be GCC (probably via LLVM-GCC). The only option might to to have the sconstruct script generate a temporary directory, dump a basic C file in there, try to compile it with the different -arch targets, check for errors, and finally delete the temporary directory. I haven't encountered LLVM on a Mac system yet. Do you know how it is on yours? Regards, Edward On 2 December 2013 21:06, Troels Emtekær Linnet <tlin...@gmail.com> wrote: > How about something like this? > > http://www.cl.cam.ac.uk/~cs448/git/trunk/src/SConstruct > http://stackoverflow.com/questions/11377274/how-to-determine-which-compiler-was-requested > > Could there be created a short "print" sconstruct file to test in? > > I tested the relax .dmg version, and it look good with no errors. > > I though receive some errors with the compiled version, which I will post > soon. > > Best > > Troels Emtekær Linnet > > > 2013/12/2 Edward d'Auvergne <edw...@nmr-relax.com>: >> Ah, there's the problem right there! That is not gcc. It is LLVM >> pretending to be gcc, but failing in mimicking it's behaviour >> correctly! It does not support ppc, but it is responding like a gcc >> version that does. Hmmm, I'm not sure what a solution would be for >> testing LLVM verses gcc, or to determine which architectures LLVM >> supports. If you do find out, that could be quite useful for that >> sconstruct method. >> >> Cheers, >> >> Edward >> >> >> >> >> On 2 December 2013 18:30, Troels Emtekær Linnet <tlin...@gmail.com> wrote: >>> Hi Edward. >>> >>> --------- >>> tlinnet@linmac:relax_trunk$ gcc -v >>> Configured with: >>> --prefix=/Applications/Xcode.app/Contents/Developer/usr >>> --with-gxx-include-dir=/usr/include/c++/4.2.1 >>> Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) >>> Target: x86_64-apple-darwin13.0.0 >>> Thread model: posix >>> ------- >>> It is the ppc who give the problem >>> >>> tlinnet@linmac:relax_trunk$ gcc -o target_functions/c_chi2.os -c >>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>> -arch i386 -fPIC target_functions/c_chi2.c >>> >>> tlinnet@linmac:relax_trunk$ gcc -o target_functions/c_chi2.os -c >>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>> -arch x86_64 -fPIC target_functions/c_chi2.c >>> >>> tlinnet@linmac:relax_trunk$ gcc -o target_functions/c_chi2.os -c >>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>> -arch ppc -fPIC target_functions/c_chi2.c >>> >>> In file included from target_functions/c_chi2.c:20: >>> >>> In file included from /usr/include/stdio.h:64: >>> >>> /usr/include/sys/cdefs.h:655:2: error: Unsupported architecture >>> >>> #error Unsupported architecture >>> >>> ^ >>> >>> In file included from target_functions/c_chi2.c:20: >>> >>> In file included from /usr/include/stdio.h:67: >>> >>> In file included from /usr/include/_types.h:27: >>> >>> In file included from /usr/include/sys/_types.h:33: >>> >>> /usr/include/machine/_types.h:34:2: error: architecture not supported >>> >>> #error architecture not supported >>> >>> ^ >>> >>> In file included from target_functions/c_chi2.c:20: >>> >>> In file included from /usr/include/stdio.h:67: >>> >>> In file included from /usr/include/_types.h:27: >>> >>> /usr/include/sys/_types.h:94:9: error: unknown type name '__int64_t' >>> >>> typedef __int64_t __darwin_blkcnt_t; /* total blocks */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:95:9: error: unknown type name '__int32_t' >>> >>> typedef __int32_t __darwin_blksize_t; /* preferred block size */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:96:9: error: unknown type name '__int32_t' >>> >>> typedef __int32_t __darwin_dev_t; /* dev_t */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:99:9: error: unknown type name '__uint32_t' >>> >>> typedef __uint32_t __darwin_gid_t; /* [???] process and >>> group IDs */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:100:9: error: unknown type name '__uint32_t' >>> >>> typedef __uint32_t __darwin_id_t; /* [XSI] pid_t, uid_t, >>> or gid_t*/ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:101:9: error: unknown type name '__uint64_t' >>> >>> typedef __uint64_t __darwin_ino64_t; /* [???] Used for 64 >>> bit inodes */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:107:9: error: unknown type name >>> '__darwin_natural_t' >>> >>> typedef __darwin_natural_t __darwin_mach_port_name_t; /* Used by mach */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:109:9: error: unknown type name '__uint16_t' >>> >>> typedef __uint16_t __darwin_mode_t; /* [???] Some file >>> attributes */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:110:9: error: unknown type name '__int64_t' >>> >>> typedef __int64_t __darwin_off_t; /* [???] Used for file >>> sizes */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:111:9: error: unknown type name '__int32_t' >>> >>> typedef __int32_t __darwin_pid_t; /* [???] process and >>> group IDs */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:131:9: error: unknown type name '__uint32_t' >>> >>> typedef __uint32_t __darwin_sigset_t; /* [???] signal set */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:132:9: error: unknown type name '__int32_t' >>> >>> typedef __int32_t __darwin_suseconds_t; /* [???] microseconds */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:133:9: error: unknown type name '__uint32_t' >>> >>> typedef __uint32_t __darwin_uid_t; /* [???] user IDs */ >>> >>> ^ >>> >>> /usr/include/sys/_types.h:134:9: error: unknown type name '__uint32_t' >>> >>> typedef __uint32_t __darwin_useconds_t; /* [???] microseconds */ >>> >>> ^ >>> >>> In file included from target_functions/c_chi2.c:20: >>> >>> In file included from /usr/include/stdio.h:71: >>> >>> /usr/include/sys/_types/_va_list.h:31:9: error: unknown type name >>> '__darwin_va_list'; did you mean '__builtin_va_list'? >>> >>> typedef __darwin_va_list va_list; >>> >>> ^ >>> >>> note: '__builtin_va_list' declared here >>> >>> In file included from target_functions/c_chi2.c:20: >>> >>> In file included from /usr/include/stdio.h:72: >>> >>> /usr/include/sys/_types/_size_t.h:30:9: error: unknown type name >>> '__darwin_size_t'; did you mean '__darwin_ino_t'? >>> >>> typedef __darwin_size_t size_t; >>> >>> ^ >>> >>> /usr/include/sys/_types.h:103:26: note: '__darwin_ino_t' declared here >>> >>> typedef __darwin_ino64_t __darwin_ino_t; /* [???] Used for inodes */ >>> >>> ^ >>> >>> In file included from target_functions/c_chi2.c:20: >>> >>> In file included from /usr/include/stdio.h:434: >>> >>> /usr/include/sys/_types/_ssize_t.h:30:9: error: unknown type name >>> '__darwin_ssize_t' >>> >>> typedef __darwin_ssize_t ssize_t; >>> >>> ^ >>> >>> 19 errors generated. >>> >>> >>> >>> >>> Troels Emtekær Linnet >>> >>> >>> 2013/12/2 Edward d'Auvergne <edw...@nmr-relax.com>: >>>> Hi, >>>> >>>> From that it looks like you can compile for all three architectures! >>>> Ok, maybe try the following then: >>>> >>>> $ gcc -o target_functions/c_chi2.os -c >>>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>>> -arch i386 -fPIC target_functions/c_chi2.c >>>> $ gcc -o target_functions/c_chi2.os -c >>>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>>> -arch ppc -fPIC target_functions/c_chi2.c >>>> $ gcc -o target_functions/c_chi2.os -c >>>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>>> -arch x86_64 -fPIC target_functions/c_chi2.c >>>> >>>> Which of these gives the error message? You obviously have partially >>>> functional cross-compiler but one of these architectures is broken! I >>>> also don't like the 'Clang' messages. Normally the error message will >>>> show gcc, not clang. Maybe try running: >>>> >>>> $ gcc -v >>>> >>>> This is just to be sure that this is gcc and not clang pretending to be >>>> gcc. >>>> >>>> Regards, >>>> >>>> Edward >>>> >>>> >>>> >>>> >>>> >>>> >>>> On 2 December 2013 18:11, Troels Emtekær Linnet <tlin...@gmail.com> wrote: >>>>> Hi Edward. >>>>> >>>>> I get: >>>>> >>>>> tlinnet@linmac:~$ gcc -arch i386 >>>>> clang: error: no input files >>>>> tlinnet@linmac:~$ gcc -arch ppc >>>>> clang: error: no input files >>>>> tlinnet@linmac:~$ gcc -arch x86_64 >>>>> clang: error: no input files >>>>> >>>>> So it seems that is possible. >>>>> I have installed xcode, where the preferences show that >>>>> Command line tools: Xcode 5.0.2 (5A3005) is installed. >>>>> >>>>> As long as the simple fix is to change that line, it is fine for me. >>>>> >>>>> Could one get some inspiration from the blender project? >>>>> http://wiki.blender.org/index.php/Dev:Doc/Building_Blender/Linux/scons >>>>> >>>>> Best >>>>> Troels >>>>> >>>>> Troels Emtekær Linnet >>>>> >>>>> >>>>> 2013/12/2 Edward d'Auvergne <edw...@nmr-relax.com>: >>>>>> Hi Troels, >>>>>> >>>>>> This change is not really a solution as that will prevent me from >>>>>> compiling the universal binaries required for the Mac app >>>>>> (http://www.nmr-relax.com/download.html#Mac_OS_X). What is rather >>>>>> needed is a reliable way of detecting which target architectures gcc >>>>>> on the Mac can compile for. You can see from the code that it will >>>>>> run: >>>>>> >>>>>> $ gcc -arch i386 >>>>>> $ gcc -arch ppc >>>>>> $ gcc -arch x86_64 >>>>>> >>>>>> This then checks for the text "no input files" which is only printed >>>>>> for supported architectures. If you run these commands yourself, what >>>>>> do you see? This should give error messages for all non-supported >>>>>> architectures. There might be however a cleaner way of performing >>>>>> this, however there doesn't seem to be a standard way on Mac OS X that >>>>>> I can find. I really don't know why your gcc is printing "no input >>>>>> files" for each of these but then failing to compile. >>>>>> >>>>>> Regards, >>>>>> >>>>>> Edward >>>>>> >>>>>> >>>>>> >>>>>> On 2 December 2013 17:19, Troels Emtekær Linnet <tlin...@gmail.com> >>>>>> wrote: >>>>>>> Hi Edward. >>>>>>> >>>>>>> For a long time I thought it was a problem with xcode. >>>>>>> And I have tried alot... >>>>>>> >>>>>>> But it was simple, I just altered the archs, and it worked. >>>>>>> ----------- >>>>>>> def det_arch(self): >>>>>>> """Nasty hack to make Scons behave properly with >>>>>>> cross-compilation on Mac OS X! >>>>>>> >>>>>>> @return: The list of CPU architects to cross compile. >>>>>>> @rtype: list of str >>>>>>> """ >>>>>>> >>>>>>> # The list of archectures to try. >>>>>>> #archs = ['i386', 'ppc', 'x86_64'] >>>>>>> archs = ['x86_64'] >>>>>>> ----------------- >>>>>>> >>>>>>> Troels Emtekær Linnet >>>>>>> >>>>>>> >>>>>>> 2013/12/2 Edward d'Auvergne <edw...@nmr-relax.com>: >>>>>>>> Hi, >>>>>>>> >>>>>>>> I'm not sure what is happening here. This normally works. Maybe you >>>>>>>> should look at the det_arch() method in the 'sconstruct' script, as >>>>>>>> that is the likely failure point. I would guess that it is not able >>>>>>>> to correctly determine the supported architectures on your system. >>>>>>>> This has worked on numerous Macs before, so maybe there is something >>>>>>>> different with the setup (Xcode is a likely culprit). >>>>>>>> >>>>>>>> Regards, >>>>>>>> >>>>>>>> Edward >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On 1 December 2013 23:33, Troels Emtekær Linnet <tlin...@gmail.com> >>>>>>>> wrote: >>>>>>>>> Hi Edward. >>>>>>>>> >>>>>>>>> I tried compiling relax on mac OS X Mavericks. >>>>>>>>> >>>>>>>>> Should I in some way specify which kernel to build for? >>>>>>>>> >>>>>>>>> I get these errors: >>>>>>>>> ---------- >>>>>>>>> linmac:relax_trunk tlinnet$ scons >>>>>>>>> >>>>>>>>> scons: Reading SConscript files ... >>>>>>>>> >>>>>>>>> scons: done reading SConscript files. >>>>>>>>> >>>>>>>>> scons: Building targets ... >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> ########################### >>>>>>>>> >>>>>>>>> # Compiling the C modules # >>>>>>>>> >>>>>>>>> ########################### >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> Building the relaxation curve fitting module >>>>>>>>> 'target_functions/relax_fit.so' >>>>>>>>> >>>>>>>>> >>>>>>>>> gcc -o target_functions/c_chi2.os -c >>>>>>>>> -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 >>>>>>>>> -arch i386 -arch ppc -arch x86_64 -fPIC target_functions/c_chi2.c >>>>>>>>> >>>>>>>>> In file included from target_functions/c_chi2.c:20: >>>>>>>>> >>>>>>>>> In file included from /usr/include/stdio.h:64: >>>>>>>>> >>>>>>>>> /usr/include/sys/cdefs.h:655:2: error: Unsupported architecture >>>>>>>>> >>>>>>>>> #error Unsupported architecture >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> In file included from target_functions/c_chi2.c:20: >>>>>>>>> >>>>>>>>> In file included from /usr/include/stdio.h:67: >>>>>>>>> >>>>>>>>> In file included from /usr/include/_types.h:27: >>>>>>>>> >>>>>>>>> In file included from /usr/include/sys/_types.h:33: >>>>>>>>> >>>>>>>>> /usr/include/machine/_types.h:34:2: error: architecture not supported >>>>>>>>> >>>>>>>>> #error architecture not supported >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> In file included from target_functions/c_chi2.c:20: >>>>>>>>> >>>>>>>>> In file included from /usr/include/stdio.h:67: >>>>>>>>> >>>>>>>>> In file included from /usr/include/_types.h:27: >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:94:9: error: unknown type name '__int64_t' >>>>>>>>> >>>>>>>>> typedef __int64_t __darwin_blkcnt_t; /* total blocks */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:95:9: error: unknown type name '__int32_t' >>>>>>>>> >>>>>>>>> typedef __int32_t __darwin_blksize_t; /* preferred block >>>>>>>>> size */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:96:9: error: unknown type name '__int32_t' >>>>>>>>> >>>>>>>>> typedef __int32_t __darwin_dev_t; /* dev_t */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:99:9: error: unknown type name '__uint32_t' >>>>>>>>> >>>>>>>>> typedef __uint32_t __darwin_gid_t; /* [???] process and >>>>>>>>> group IDs */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:100:9: error: unknown type name '__uint32_t' >>>>>>>>> >>>>>>>>> typedef __uint32_t __darwin_id_t; /* [XSI] pid_t, uid_t, >>>>>>>>> or gid_t*/ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:101:9: error: unknown type name '__uint64_t' >>>>>>>>> >>>>>>>>> typedef __uint64_t __darwin_ino64_t; /* [???] Used for 64 >>>>>>>>> bit inodes */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:107:9: error: unknown type name >>>>>>>>> '__darwin_natural_t' >>>>>>>>> >>>>>>>>> typedef __darwin_natural_t __darwin_mach_port_name_t; /* Used by mach >>>>>>>>> */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:109:9: error: unknown type name '__uint16_t' >>>>>>>>> >>>>>>>>> typedef __uint16_t __darwin_mode_t; /* [???] Some file >>>>>>>>> attributes */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:110:9: error: unknown type name '__int64_t' >>>>>>>>> >>>>>>>>> typedef __int64_t __darwin_off_t; /* [???] Used for >>>>>>>>> file sizes */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:111:9: error: unknown type name '__int32_t' >>>>>>>>> >>>>>>>>> typedef __int32_t __darwin_pid_t; /* [???] process and >>>>>>>>> group IDs */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:131:9: error: unknown type name '__uint32_t' >>>>>>>>> >>>>>>>>> typedef __uint32_t __darwin_sigset_t; /* [???] signal set */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:132:9: error: unknown type name '__int32_t' >>>>>>>>> >>>>>>>>> typedef __int32_t __darwin_suseconds_t; /* [???] microseconds >>>>>>>>> */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:133:9: error: unknown type name '__uint32_t' >>>>>>>>> >>>>>>>>> typedef __uint32_t __darwin_uid_t; /* [???] user IDs */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:134:9: error: unknown type name '__uint32_t' >>>>>>>>> >>>>>>>>> typedef __uint32_t __darwin_useconds_t; /* [???] microseconds >>>>>>>>> */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> In file included from target_functions/c_chi2.c:20: >>>>>>>>> >>>>>>>>> In file included from /usr/include/stdio.h:71: >>>>>>>>> >>>>>>>>> /usr/include/sys/_types/_va_list.h:31:9: error: unknown type name >>>>>>>>> '__darwin_va_list'; did you mean '__builtin_va_list'? >>>>>>>>> >>>>>>>>> typedef __darwin_va_list va_list; >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> note: '__builtin_va_list' declared here >>>>>>>>> >>>>>>>>> In file included from target_functions/c_chi2.c:20: >>>>>>>>> >>>>>>>>> In file included from /usr/include/stdio.h:72: >>>>>>>>> >>>>>>>>> /usr/include/sys/_types/_size_t.h:30:9: error: unknown type name >>>>>>>>> '__darwin_size_t'; did you mean '__darwin_ino_t'? >>>>>>>>> >>>>>>>>> typedef __darwin_size_t size_t; >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> /usr/include/sys/_types.h:103:26: note: '__darwin_ino_t' declared here >>>>>>>>> >>>>>>>>> typedef __darwin_ino64_t __darwin_ino_t; /* [???] Used for >>>>>>>>> inodes */ >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> In file included from target_functions/c_chi2.c:20: >>>>>>>>> >>>>>>>>> In file included from /usr/include/stdio.h:434: >>>>>>>>> >>>>>>>>> /usr/include/sys/_types/_ssize_t.h:30:9: error: unknown type name >>>>>>>>> '__darwin_ssize_t' >>>>>>>>> >>>>>>>>> typedef __darwin_ssize_t ssize_t; >>>>>>>>> >>>>>>>>> ^ >>>>>>>>> >>>>>>>>> 19 errors generated. >>>>>>>>> >>>>>>>>> scons: *** [target_functions/c_chi2.os] Error 1 >>>>>>>>> >>>>>>>>> scons: building terminated because of errors. >>>>>>>>> >>>>>>>>> linmac:relax_trunk tlinnet$ >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> Troels Emtekær Linnet >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> relax (http://www.nmr-relax.com) >>>>>>>>> >>>>>>>>> This is the relax-devel mailing list >>>>>>>>> relax-devel@gna.org >>>>>>>>> >>>>>>>>> To unsubscribe from this list, get a password >>>>>>>>> reminder, or change your subscription options, >>>>>>>>> visit the list information page at >>>>>>>>> https://mail.gna.org/listinfo/relax-devel _______________________________________________ relax (http://www.nmr-relax.com) This is the relax-devel mailing list relax-devel@gna.org To unsubscribe from this list, get a password reminder, or change your subscription options, visit the list information page at https://mail.gna.org/listinfo/relax-devel
