[R-SIG-Mac] Which gfortran for Leopard?

Simon Urbanek simon.urbanek at r-project.org
Mon Jan 25 21:29:13 CET 2010 

On Jan 25, 2010, at 15:03 , cstrato wrote:

> Dear Simon,
>
> Thank you for your suggestions, which I have just tried. Sadly the  
> error remains the same.
>
> The problem seems to be that for some reason "gfortran-4.2-5564- 
> darwin9.tar.gz" does not have a "/usr/lib/gcc/i686-apple- 
> darwin9/4.2.1/x86_64" directory containing libgfortranbegin.a. For  
> this reason the 64 bit version of libgfortranbegin.a is not  
> installed in the corresponding directory x86_64 which contains only  
> libgcc.a etc.
>

Oh ... that's a surprise - it should be there, sorry. Ok, so please  
use the more recent 5566 build:
http://r.research.att.com/tools/gfortran-4.2-5566-darwin9.tar.gz

that one has the x86_64 files - I checked:
ginaz:~$ curl -s -S http://r.research.att.com/tools/gfortran-4.2-5566-darwin9.tar.gz 
  | tar fvtz - | grep gfortran.a
-rw-r--r-- root/wheel  3592608 2008-12-24 14:51:33 usr/lib/gcc/i686- 
apple-darwin9/4.2.1/libgfortran.a
-rw-r--r-- root/wheel  3870032 2008-12-24 14:51:33 usr/lib/gcc/powerpc- 
apple-darwin9/4.2.1/libgfortran.a
-rw-r--r-- root/wheel  5002152 2008-12-24 14:51:33 usr/lib/gcc/i686- 
apple-darwin9/4.2.1/x86_64/libgfortran.a

(Ideally you should install Xcode 3.1.2 for this since that is where  
the 5566 build comes from, but it will probably work even if the  
builds don't match perfectly).

Cheers,
Simon



> You can see this by double-clicking on "gfortran-4.2-5564- 
> darwin9.tar.gz" when located in some directory.
>
> In contrast, "gfortran-4.2.3.dmg" did install libgfortranbegin.a in  
> the "/usr/local/lib/gcc/i686-apple-darwin9/4.2.1/x86_64" directory.
>
> Could you please check or tell me what the reason might be?
>
> I have installed it using:
> $ gunzip gfortran-4.2-5564-darwin9.tar.gz
> $ sudo tar -xvf gfortran-4.2-5564-darwin9.tar -C /
>
> Best regards
> Christian
>
>
> Simon Urbanek wrote:
>> On Jan 24, 2010, at 3:28 PM, cstrato wrote:
>>
>>
>>> Dear Kasper,
>>>
>>> You are right. Since ROOT supports the CC, CXX, F77 and LD flags I  
>>> did:
>>> ./configure macosx64 --with-cxx="/usr/bin/g++-4.2 -arch x86_64" -- 
>>> with-f77="/usr/bin/gfortran-4.2 -arch x86_64"
>>>
>>>
>>
>> You don't really need the override - it works without and they add - 
>> m64 anyway so the -arch gets essentially ignored.
>>
>>
>>
>>> The error was still the same:
>>> i686-apple-darwin9-g++-4.2.1: libgfortran.dylib: No such file or  
>>> directory
>>>
>>> However, when I replaced in the Makefile.macosx64:
>>> F77LIBS      := $(shell $(F77) -m64 -print-file- 
>>> name=libgfortran.dylib)
>>> F77LIBS      += $(shell $(F77) -m64 -print-file- 
>>> name=libgfortranbegin.a)
>>> with:
>>> F77LIBS      := $(shell $(F77) -m64 -print-file- 
>>> name=libgfortranbegin.a)
>>>
>>
>> You found the right spot but your fix is wrong - just remove the  
>> two lines, they are superfluous and only cause trouble.
>>
>>
>>
>>> the error disappeared, and I could finish the compilation.
>>>
>>> However, now I got a link-error:
>>> ld warning: in /usr/lib/gcc/i686-apple-darwin9/4.2.1/ 
>>> libgfortranbegin.a, file is not of required architecture
>>> Undefined symbols:
>>> "_main", referenced from:
>>>    start in crt1.10.5.o
>>>
>>>
>>
>> Your'e getting the 32-bit version (of the wrong file - see above).  
>> It should really be ../4.2.1/x86_64/lib...
>>
>>
>>
>>> I am not sure what this error means since Makefile.macosx64  
>>> contains:
>>> F77FLAGS      = -m64 -std=legacy
>>>
>>> Could it be that libgfortranbegin.a can only be used for 32bit  
>>> compilation?
>>>
>>>
>>
>> No, you're picking the wrong one - there is one for each  
>> architecture.
>>
>>
>>
>>> Furthermore, I still have the question (and hopefully Simon will  
>>> answer it):
>>> Why does gfortran-4.2-5564-darwin9.tar.gz not contain any  
>>> libgfortran.dylib files?
>>>
>>>
>>
>> Because it's using a static library.
>>
>>
>>
>>> Interestingly, when googling "/usr/lib/libgfortran.dylib" I get  
>>> the answer that NO results were found, while googling "/usr/local/ 
>>> lib/libgfortran.dylib" gives many results. Thus it seems that  
>>> there will never be any libgfortran.dylib in "/usr/lib/"!?
>>>
>>
>> Nope - OS X has no Fortran by default.
>>
>> Cheers,
>> Simon
>>
>>
>>
>>
>>> I must admit that I do not understand this issue.
>>>
>>> Best regards
>>> Christian
>>>
>>>
>>> Kasper Daniel Hansen wrote:
>>>
>>>> On Jan 23, 2010, at 8:37 AM, cstrato wrote:
>>>>
>>>>
>>>>> Dear Kasper,
>>>>>
>>>>> Thank you for your suggestion, I did indeed use gcc 4.0.
>>>>> Since gcc_select does no longer exist on Leopard I had to do:
>>>>> cd /usr/bin
>>>>> sudo ln -s gcc-4.2 gcc
>>>>> sudo ln -s g++-4.2 g++
>>>>> sudo ln -s gcov-4.2 gcov
>>>>>
>>>> I am not sure this is advisable in general.  When I compile stuff  
>>>> with gcc-4.2 I usually explicitly set
>>>> CC=/usr/bin/gcc-4.2
>>>> when I run configure.  For example, my entire configure line for  
>>>> R on my macbook is
>>>>  ../${SRCDIR}/configure SHELL='/bin/bash' \
>>>>           CC="/usr/bin/gcc-4.2 -arch x86_64 -std=gnu99" \
>>>>           CFLAGS="-g -O2 -std=gnu99 -march=nocona" \
>>>>           CXX="/usr/bin/g++-4.2 -arch x86_64" \
>>>>           CXXFLAGS="-g -O2 -march=nocona" \
>>>>           OBJC="/usr/bin/gcc-4.2 -arch x86_64" \
>>>>           F77="/usr/bin/gfortran-4.2 -arch x86_64" \
>>>>           FFLAGS="-g -O2 -march=nocona" \
>>>>           FC="/usr/bin/gfortran-4.2 -arch x86_64" \
>>>>           FCFLAGS="-g -O2 -march=nocona" \
>>>>           --x-includes=/usr/X11/include --x-libraries=/usr/X11/ 
>>>> lib \
>>>>           --with-system-zlib \
>>>>           --with-blas='-framework vecLib' --with-lapack
>>>>   Of course this requires that ROOT uses the CC/CFLAGS macros,  
>>>> but that should be pretty standard if it uses autoconf.
>>>>
>>>>
>>>>> Sadly, compiling ROOT resulted still in the same error:
>>>>> i686-apple-darwin9-g++-4.2.1: libgfortran.dylib: No such file or  
>>>>> directory
>>>>>
>>>>> When I check the location for gfortran-4.2.3.dmg I get:
>>>>> $ cd /usr/local/lib/gcc/i686-apple-darwin8/4.2.3/../../../x86_64
>>>>> $ ls -al
>>>>> total 32
>>>>> drwxrwxr-x   6 root  wheel   204 Jan 21 20:26 .
>>>>> drwxr-xr-x  35 root  wheel  1190 Jan 21 20:26 ..
>>>>> lrwxr-xr-x   1 root  wheel    26 Jan 21 20:26 libgfortran. 
>>>>> 2.0.0.dylib -> ../libgfortran.2.0.0.dylib
>>>>> lrwxr-xr-x   1 root  wheel    23 Jan 21 20:26 libgfortran. 
>>>>> 2.dylib -> libgfortran.2.0.0.dylib
>>>>> lrwxr-xr-x   1 root  wheel    16 Jan 21 20:26 libgfortran.a - 
>>>>> > ../libgfortran.a
>>>>> lrwxr-xr-x   1 root  wheel    23 Jan 21 20:26 libgfortran.dylib - 
>>>>> > libgfortran.2.0.0.dylib
>>>>>
>>>>> This means that /usr/local/bin does contain libgfortran.dylib  
>>>>> whereas /usr/bin does not contain any of these files or links.
>>>>> Does this mean that gfortran-4.2.3.dmg does contain these file  
>>>>> for libgfortran.dylib while gfortran-4.2-5564-darwin9.tar.gz  
>>>>> does not contain these files?
>>>>> How do I get libgfortran.dylib?
>>>>>
>>>> Simon might be able to answer this better, but the general idea  
>>>> is that the
>>>>> gfortran-4.2-5564-darwin9.tar.gz
>>>>>
>>>> installs into /usr/bin
>>>>
>>>>> gfortran-4.2.3.dmg
>>>>>
>>>> installs into /usr/local/bin.  There is some logic here, the way  
>>>> I think about it is that the former is a direct extension of the  
>>>> Apple build.
>>>>
>>>> I would start from scratch, which means remove all traces of both  
>>>> gfortrans, install the 5564-tarball and then set the various  
>>>> macros as I have set it above for R (your exact values may of  
>>>> course be different depending on what machine etc. you are using).
>>>>
>>>> Kasper
>>>>
>>>>
>>>>
>>>>> BTW, I must apologize to Simon. On his website he lists the  
>>>>> commands how to install gfortran.tar.gz, but in the Tiger  
>>>>> section, so I did miss it. Nevertheless it would still be  
>>>>> helpful for Mac users to know how to uninstall it:
>>>>> $ tar -tf gfortran.tar | sort -r | (cd /; xargs -p -n 1 rm -d)
>>>>>
>>>>> Best regards
>>>>> Christian
>>>>>
>>>>>
>>>>> Kasper Daniel Hansen wrote:
>>>>>
>>>>>> Remember that Apple has two version of GCC on Leopard: 4.0 and  
>>>>>> 4.2.  You are using 4.0, you might want to switch to 4.2.  In  
>>>>>> Tiger there used to be gcc_select (or select_gcc) that let you  
>>>>>> choose between 3.x and 4.0, I don't remember if that is still  
>>>>>> around on Leopard.
>>>>>>
>>>>>> The error seems to indicate that you need 4.2 in order to use  
>>>>>> Simon's gfortran.
>>>>>>
>>>>>> Kasper
>>>>>>
>>>>>> On Jan 22, 2010, at 16:04 PM, cstrato wrote:
>>>>>>
>>>>>>
>>>>>>> Dear Simon,
>>>>>>>
>>>>>>> Thank you for this information.
>>>>>>>
>>>>>>> Now I have installed gfortran-4.2-5564-darwin9.tar.gz on  
>>>>>>> Leopard and tried to compile ROOT again, but this time I got  
>>>>>>> the following error:
>>>>>>> g++ -dynamiclib -single_module -undefined dynamic_lookup - 
>>>>>>> install_name @rpath/libminicern.so -O2 -m64 -o lib/ 
>>>>>>> libminicern.so misc/minicern/src/cernlib.o -ldl misc/minicern/ 
>>>>>>> src/hbook.o misc/minicern/src/kernlib.o misc/minicern/src/ 
>>>>>>> zebra.o libgfortran.dylib /usr/lib/gcc/i686-apple- 
>>>>>>> darwin9/4.2.1/libgfortranbegin.a
>>>>>>> i686-apple-darwin9-g++-4.0.1: libgfortran.dylib: No such file  
>>>>>>> or directory
>>>>>>>
>>>>>>> I know that this is not necessarily an R-related question but  
>>>>>>> I would greatly appreciate your help if possible (at least it  
>>>>>>> is a Mac- and somehow a BioC-related question).
>>>>>>>
>>>>>>> When I have tried to compile ROOT with gfortran-4.2.3.dmg I  
>>>>>>> got the following error:
>>>>>>> gfortran -O2 -m64 -o bin/g2root main/src/g2root.o -Llib lib/ 
>>>>>>> libminicern.so /usr/local/lib/gcc/i686-apple- 
>>>>>>> darwin8/4.2.3/../../../x86_64/libgfortran.dylib /usr/local/lib/ 
>>>>>>> gcc/i686-apple-darwin8/4.2.3/x86_64/libgfortranbegin.a -lm - 
>>>>>>> Wl,-rpath, at loader_path/../lib    -pthread -ldl
>>>>>>> ld: -rpath can only be used when targeting Mac OS X 10.5 or  
>>>>>>> later
>>>>>>>
>>>>>>> As you can see gfortran-4.2.3 could find libgfortran.dylib at:
>>>>>>> /usr/local/lib/gcc/i686-apple-darwin8/4.2.3/../../../x86_64/ 
>>>>>>> libgfortran.dylib while gfortran-4.2.4 could not find  
>>>>>>> libgfortran.dylib.
>>>>>>>
>>>>>>> Thus maybe I did make a mistake when installing  
>>>>>>> gfortran-4.2.4. Here is what I did:
>>>>>>> $ gunzip gfortran-4.2-5564-darwin9.tar.gz
>>>>>>> $ sudo tar -xvf gfortran-4.2-5564-darwin9.tar -C /
>>>>>>> $ sudo ln -s /usr/bin/gfortran-4.2 /usr/bin/gfortran
>>>>>>>
>>>>>>> Do you know what I need to do so that libgfortran.dylib can be  
>>>>>>> found?
>>>>>>>
>>>>>>> P.S.:Since many Mac users are no Unix experts please allow me  
>>>>>>> to suggest to place on your website the commands to install/ 
>>>>>>> uninstall gfortran. I have found the following website, which  
>>>>>>> told me how to install gfortran and how I could uninstall it:
>>>>>>> http://www.webmo.net/support/fortran_osx.html
>>>>>>>
>>>>>>> Thank you in advance.
>>>>>>> Best regards
>>>>>>> Christian
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Simon Urbanek wrote:
>>>>>>>
>>>>>>>> On Jan 21, 2010, at 15:56 , cstrato wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>> Dear Simon,
>>>>>>>>>
>>>>>>>>> One more question:
>>>>>>>>> I have just unzipped gfortran-4.2-5564-darwin9.tar.gz. The  
>>>>>>>>> version gives:
>>>>>>>>> Using built-in specs.
>>>>>>>>> Target: i686-apple-darwin9
>>>>>>>>> Configured with: /Builds/gcc/gcc_42-5564/build/obj/src/ 
>>>>>>>>> configure --disable-checking --enable-werror --prefix=/usr -- 
>>>>>>>>> mandir=/usr/share/man --enable-languages=c,objc,c++,obj-c+ 
>>>>>>>>> +,fortran --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ -- 
>>>>>>>>> with-gxx-include-dir=/usr/include/c++/4.0.0 --with-slibdir=/ 
>>>>>>>>> usr/lib --build=i686-apple-darwin9 --host=i686-apple-darwin9  
>>>>>>>>> --target=i686-apple-darwin9
>>>>>>>>> Thread model: posix
>>>>>>>>> gcc version 4.2.1 (Apple Inc. build 5564)
>>>>>>>>>
>>>>>>>>> This means that this version seems to be older than the one  
>>>>>>>>> I am using now?
>>>>>>>>>
>>>>>>>>>
>>>>>>>> No, that is GNU Fortran 4.2.4 that I was referring to. The  
>>>>>>>> "gcc version 4.2.1" comes from Apple's Xcode 3.1 gcc-4.2  
>>>>>>>> branch since that is what they define - it just adds Fortran  
>>>>>>>> support to the existing gcc 4.2.1 branch of Apple that you  
>>>>>>>> installed as Xcode. However, the Fortran part is merged from  
>>>>>>>> the GNU Fortran 4.2.4 release - hence I refer to it as 4.2.4.
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Simon
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> Simon Urbanek wrote:
>>>>>>>>>
>>>>>>>>>> On Jan 21, 2010, at 14:47 , cstrato wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Dear all,
>>>>>>>>>>>
>>>>>>>>>>> I have the following problem:
>>>>>>>>>>> My Bioconductor package xps requires both R and ROOT,  
>>>>>>>>>>> whereby I compile ROOT usually from source. Until now this  
>>>>>>>>>>> has not been a problem since I do all my development on  
>>>>>>>>>>> Tiger. However, now I wanted to compile ROOT on Leopard  
>>>>>>>>>>> but failed since my gfortran compiler is too old, see:
>>>>>>>>>>> http://root.cern.ch/phpBB2/viewtopic.php?t=9721&sid=003b01ddb64f33dbe0c74651ee089c34 
>>>>>>>>>>>  To solve the problem I should upgrade to the latest  
>>>>>>>>>>> version coming with gcc-4.4 in Fink.
>>>>>>>>>>>
>>>>>>>>>> I would advise against that - using gcc from Fink usually  
>>>>>>>>>> calls for a disaster. The real solution is to fix their  
>>>>>>>>>> flags, but that's another story ...
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Thus my question is:
>>>>>>>>>>> Can I also use this version for R or do I need to use the  
>>>>>>>>>>> version downloaded from att?
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>> I would recommend using the Leopard gfortran 4.2.4 for  
>>>>>>>>>> Xcode 3.1.x from the Mac devel page
>>>>>>>>>> http://r.research.att.com/tools/
>>>>>>>>>> which I assume is what you meant by the latter.
>>>>>>>>>>
>>>>>>>>>> Cheers,
>>>>>>>>>> Simon
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> R-SIG-Mac mailing list
>>>>>>> R-SIG-Mac at stat.math.ethz.ch
>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>>>>>>
>>>>>>
>>>>
>>>
>>
>>
>>
>
>

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