Now I got it to work. I found that within the lib directory that
contains the gfrotran libs exists another subdirectory called x86_64, i.e.
/usr/local/gcc-4.3.5/lib/libgfortran* (32 Bit)
and
/usr/local/gcc-4.3.5/lib/x86_64/libgfortran* (64 Bit)
And instead of linking the program like that...
$(MEX) -cxx CXX=$(CXX) CC=$(CXX) FC=$(FCC) LD=$(CXX)
-L/usr/local/gcc-4.3.5/lib -lgfortran -lm \
-O -output $@ $^
... I linked it like that...
$(MEX) -cxx CXX=$(CXX) CC=$(CXX) FC=$(FCC) LD=$(CXX)
-L/usr/local/gcc-4.3.5/lib/x86_64 -lgfortran -lm \
-O -output $@ $^
Now it works fine. Thanks for your help.
Paul van Hoven schrieb:
Thanks for the answers. I replace lg2c with lgfortran. When I try to
compile now I get the following error message
make clean all
rm -f *.o lbfgsb.mexmaci64
/usr/local/gcc-4.3.5/bin/gfortran -O3 -x f77-cpp-input -fPIC
-fno-common -m64 -o solver.o -c solver.f
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o matlabexception.o
-c matlabexception.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o matlabscalar.o -c
matlabscalar.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o matlabstring.o -c
matlabstring.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o matlabmatrix.o -c
matlabmatrix.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o arrayofmatrices.o
-c arrayofmatrices.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o program.o -c
program.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o matlabprogram.o -c
matlabprogram.cpp
g++ -O3 -fPIC -fno-common -fexceptions -no-cpp-precomp -arch x86_64
-m64 -Wall -ansi -DMATLAB_MEXFILE
-I/Applications/MATLAB_R2009b.app/extern/include -o lbfgsb.o -c
lbfgsb.cpp
/Applications/MATLAB_R2009b.app/bin/mex -cxx CXX=g++ CC=g++ FC= LD=g++
-L/usr/local/gcc-4.3.5/lib -lgfortran -lm \
-O -output lbfgsb.mexmaci64 solver.o matlabexception.o
matlabscalar.o matlabstring.o matlabmatrix.o arrayofmatrices.o
program.o matlabprogram.o lbfgsb.o
ld: warning: in /usr/local/gcc-4.3.5/lib/libgfortran.dylib, file was
built for i386 which is not the architecture being linked (x86_64)
Actually I build the /usr/local/gcc-4.3.5/lib/libgfortran.dylib by
myself some days ago. But somehow the compilation produced a 32 bit
library but I do need a 64 bit library. So I would like to rebuild the
gfortran stuff. But where do I have to configure that
libgfortran.dylib is compiled for a 64 bit system?
I built the gfortran stuff this way:
In "/Users/toom/Downloads/gcc-4.3.5-base/obj-gcc-4.3.5" I typed the
following commands:
../gcc-4.3.5/configure --prefix=/usr/local/gcc-4.3.5/ --languages=fortran
make
sudo make install
and I got a gfortran in /usr/local/gcc-4.3.5
So how to I tell the build process that I want a 64 bit compilation?
tim schrieb:
Replace lg2c by lgfortran
Sent via BlackBerry by AT&T
-----Original Message-----
From: Paul van Hoven <paul.van.hoven@xxxxxxxxxxxxxx>
Sender: gcc-help-owner@xxxxxxxxxxx
Date: Fri, 04 Feb 2011 18:46:53 To: <gcc-help@xxxxxxxxxxx>
Subject: Compilation with g77 works but not with gfortran
I have an extension for matlab that i want to compile. The machine on
which I compile the code has a g77-3.4 and a gfortran-4.2 compiler
installed. If I set the fortran compiler in the Makefile to g77-3.4
the compilation process runs through without any error messages and I
can use the extension without any problems.
Compilation process with g77-3.4:
toom@gauss:~/Matlab/Mex/lbfgsb-for-matlab> make
/usr/site-local/bin/g77-3.4 -O3 -fPIC -fexceptions -o solver.o -c
solver.f
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabexception.o -c matlabexception.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabscalar.o -c matlabscalar.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabstring.o -c matlabstring.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabmatrix.o -c matlabmatrix.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
arrayofmatrices.o -c arrayofmatrices.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
program.o -c program.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabprogram.o -c matlabprogram.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o lbfgsb.o
-c lbfgsb.cpp
/net/matlab/Matlab2009b/bin/mex -cxx CXX=/usr/site-local/bin/g++-4.2
CC=/usr/site-local/bin/g++-4.2 FC= LD=/usr/site-local/bin/g++-4.2
-lg2c -lm \
-O -output lbfgsb.mexa64 solver.o matlabexception.o
matlabscalar.o matlabstring.o matlabmatrix.o arrayofmatrices.o
program.o matlabprogram.o lbfgsb.o
toom@gauss:~/Matlab/Mex/lbfgsb-for-matlab>
But when I replace the g77-3.4 with gfortran-4.2 I get a linker error
message that looks like this:
Compilation process with gfortran-4.2:
toom@gauss:~/Matlab/Mex/lbfgsb-for-matlab> make
/usr/site-local/bin/gfortran-4.2 -O3 -fPIC -fexceptions -o solver.o
-c solver.f
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabexception.o -c matlabexception.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabscalar.o -c matlabscalar.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabstring.o -c matlabstring.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabmatrix.o -c matlabmatrix.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
arrayofmatrices.o -c arrayofmatrices.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
program.o -c program.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o
matlabprogram.o -c matlabprogram.cpp
/usr/site-local/bin/g++-4.2 -O3 -fPIC -pthread -Wall -ansi
-DMATLAB_MEXFILE -I/net/matlab/Matlab2009b/extern/include -o lbfgsb.o
-c lbfgsb.cpp
/net/matlab/Matlab2009b/bin/mex -cxx CXX=/usr/site-local/bin/g++-4.2
CC=/usr/site-local/bin/g++-4.2 FC= LD=/usr/site-local/bin/g++-4.2
-lg2c -lm \
-O -output lbfgsb.mexa64 solver.o matlabexception.o
matlabscalar.o matlabstring.o matlabmatrix.o arrayofmatrices.o
program.o matlabprogram.o lbfgsb.o
solver.o: In function `timer_':
solver.f:(.text+0x17c4): undefined reference to `_gfortran_etime'
solver.o: In function `dcsrch_':
solver.f:(.text+0x1b66): undefined reference to
`_gfortran_compare_string'
solver.f:(.text+0x1ca7): undefined reference to
`_gfortran_compare_string'
solver.f:(.text+0x20d8): undefined reference to
`_gfortran_compare_string'
solver.f:(.text+0x2215): undefined reference to
`_gfortran_compare_string'
solver.o: In function `subsm_':
solver.f:(.text+0x2cce): undefined reference to `_gfortran_st_write'
solver.f:(.text+0x2ce2): undefined reference to
`_gfortran_transfer_character'
solver.f:(.text+0x2cea): undefined reference to
`_gfortran_st_write_done'
...
...long list of errors...
...
solver.f:(.text+0xb31c): undefined reference to `_gfortran_st_write'
solver.f:(.text+0xb324): undefined reference to
`_gfortran_st_write_done'
solver.o: In function `setulb_':
solver.f:(.text+0xb58c): undefined reference to
`_gfortran_compare_string'
collect2: ld returned 1 exit status
mex: link of ' "lbfgsb.mexa64"' failed.
make: *** [lbfgsb.mexa64] Error 1
I'm wondering: Why does this happen? I have another machine on which
I would also like to compile the code but this machine doesn't have
g77 installed.
