[Bug c/44396] New: x86_64 linking problems with gcc4.4.1 on Snow Leopard

[Bug c/44396] New: x86_64 linking problems with gcc4.4.1 on Snow Leopard

[christine dot mecklenborg at gmail dot com]

I'm running gcc4.4.1, courtesy of Fink, on Mac OS 10.6.3.  I'm trying to
compile mex files for use with 64-bit Matlab 2010a, but build fails at the
linking stage.  The source files successfully compile as x86_64 architecture
(confirmed with the 'file' command in the terminal), but gcc/ld is trying to
link as i386, for some unknown reason.

/sw/bin/gcc-4 -O -Wl,-twolevel_namespace -undefined error -arch x86_64
-Wl,-syslibroot,/Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.6
-bundle
-Wl,-exported_symbols_list,/Applications/Scientific/MATLAB_R2010a.app/extern/lib/maci64/fexport.map
-o "FAST_SFunc.mexmaci64" DoubPrec.o SysMatlab.o NWTC_IO.o NWTC_Num.o
NWTC_Aero.o NWTC_Library.o SharedInflowDefs.o HHWind.o FFWind.o FDWind.o
CTWind.o UserWind.o InflowWindMod.o SharedTypes.o AeroMods.o GenSubs.o
AeroSubs.o AeroDyn.o FAST_Mods.o Noise.o fftpack.o FFTMod.o HydroCalc.o
AeroCalc.o FAST_IO.o FAST.o PitchCntrl_ACH.o SetVersion.o UserSubs.o
UserVSCont_KP.o FASTSimulink.o FASTGateway.o
-L/Applications/Scientific/MATLAB_R2010a.app/bin/maci64 -lmx -lmex -lmat
-L/sw/lib/gcc4.4/lib/x86_64/ -lgfortran
-L/sw/lib/gcc4.4/lib/gcc/i686-apple-darwin10/4.4.1/x86_64/ -lgfortranbegin

d: warning: in DoubPrec.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in SysMatlab.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in NWTC_IO.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in NWTC_Num.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in NWTC_Aero.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in NWTC_Library.o, file was built for unsupported file format
which is not the architecture being linked (i386)
ld: warning: in SharedInflowDefs.o, file was built for unsupported file format
which is not the architecture being linked (i386)
ld: warning: in HHWind.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in FFWind.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in FDWind.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in CTWind.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in UserWind.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in InflowWindMod.o, file was built for unsupported file format
which is not the architecture being linked (i386)
ld: warning: in SharedTypes.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in AeroMods.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in GenSubs.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in AeroSubs.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in AeroDyn.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in FAST_Mods.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in Noise.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in fftpack.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in FFTMod.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in HydroCalc.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in AeroCalc.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in FAST_IO.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in FAST.o, file was built for unsupported file format which is not
the architecture being linked (i386)
ld: warning: in PitchCntrl_ACH.o, file was built for unsupported file format
which is not the architecture being linked (i386)
ld: warning: in SetVersion.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in UserSubs.o, file was built for unsupported file format which is
not the architecture being linked (i386)
ld: warning: in UserVSCont_KP.o, file was built for unsupported file format
which is not the architecture being linked (i386)
ld: warning: in FASTSimulink.o, file was built for unsupported file format
which is not the architecture being linked (i386)
ld: warning: in FASTGateway.o, file was built for unsupported file format which
is not the architecture being linked (i386)
ld: warning: in
/Applications/Scientific/MATLAB_R2010a.app/bin/maci64/libmx.dylib, file was
built for unsupported file format which is not the architecture being linked
(i386)
ld: warning: in
/Applications/Scientific/MATLAB_R2010a.app/bin/maci64/libmex.dylib, file was
built for unsupported file format which is not the architecture being linked
(i386)
ld: warning: in
/Applications/Scientific/MATLAB_R2010a.app/bin/maci64/libmat.dylib, file was
built for unsupported file format which is not the architecture being linked
(i386)
ld: warning: in /sw/lib/gcc4.4/lib/x86_64//libgfortran.dylib, file was built
for unsupported file format which is not the architecture being linked (i386)
ld: warning: in
/sw/lib/gcc4.4/lib/gcc/i686-apple-darwin10/4.4.1/x86_64//libgfortranbegin.a,
file was built for unsupported file format which is not the architecture being
linked (i386)
ld: warning: in
/sw/lib/gcc4.4/lib/gcc/i686-apple-darwin10/4.4.1/x86_64//libgcc.a, file was
built for unsupported file format which is not the architecture being linked
(i386)
Undefined symbols:
  "_mexfunction_", referenced from:
     -exported_symbol[s_list] command line option
ld: symbol(s) not found
collect2: ld returned 1 exit status

    mex: link of ' "FAST_SFunc.mexmaci64"' failed.


-- 
           Summary: x86_64 linking problems with gcc4.4.1 on Snow Leopard
           Product: gcc
           Version: 4.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: christine dot mecklenborg at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44396

[Bug target/44396] x86_64 linking problems with gcc4.4.1 on Snow Leopard

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2010-06-03 05:56 -------
>gcc/ld is trying to link as i386

Well the option -arch x86_64 does not exist for the FSF GCC; it is -m64.  I
think the issue is that your makefile is built for Apple's GCC and not for the
generic GCC.  Can you change the makefile to use -m64 instead?


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
          Component|c                           |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44396

[Bug target/44396] x86_64 linking problems with gcc4.4.1 on Snow Leopard

[christine dot mecklenborg at gmail dot com]

------- Comment #2 from christine dot mecklenborg at gmail dot com  2010-06-03 14:33 -------
(In reply to comment #1)
> >gcc/ld is trying to link as i386
> 
> Well the option -arch x86_64 does not exist for the FSF GCC; it is -m64.  I
> think the issue is that your makefile is built for Apple's GCC and not for the
> generic GCC.  Can you change the makefile to use -m64 instead?
> 

That did the trick.  Thank you so much!


-- 

christine dot mecklenborg at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44396