Just did this.
1) In my case, I chose to install gcc-4.1:
Code:
sudo apt-get install gcc-4.1
Don't forget to also install gfortran.
2) Fire up MATLAB, do
and choose to use "mexopts.sh" ( in my case, it was option #3)
3) Open ~/.matlab/mexopts.sh (using emacs, vim, gedit... whatever - sometimes it is under ~/.matlab/R2007b/mexopts.sh - assuming R2007b is your matlab version) and look inside the file for the part corresponding to your architecture; in my case, I'm using Ubuntu 64bit and so I modified this part:
Code:
#----------------------------------------------------------------------------
;;
glnxa64)
#----------------------------------------------------------------------------
RPATH="-Wl,-rpath-link,$TMW_ROOT/bin/$Arch"
CC='gcc'
CFLAGS='-ansi -D_GNU_SOURCE -fexceptions'
CFLAGS="$CFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CLIBS="$RPATH $MLIBS -lm -lstdc++"
COPTIMFLAGS='-O -DNDEBUG'
CDEBUGFLAGS='-g'
#
CXX='g++'
CXXFLAGS='-ansi -D_GNU_SOURCE'
CXXFLAGS="$CXXFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CXXLIBS="$RPATH $MLIBS -lm"
CXXOPTIMFLAGS='-O -DNDEBUG'
CXXDEBUGFLAGS='-g'
#
#
FC='g95'
FFLAGS='-fexceptions'
FFLAGS="$FFLAGS -fPIC -fno-omit-frame-pointer"
FLIBS="$RPATH $MLIBS -lm"
FOPTIMFLAGS='-O'
FDEBUGFLAGS='-g'
#
LD="$COMPILER"
LDEXTENSION='.mexa64'
LDFLAGS="-pthread -shared -Wl,--version-script,$TMW_ROOT/extern/lib/$Arch/$MAPFILE -Wl,--no-undefined"
LDOPTIMFLAGS='-O'
LDDEBUGFLAGS='-g'
#
POSTLINK_CMDS=':'
to read
Code:
#----------------------------------------------------------------------------
;;
glnxa64)
#----------------------------------------------------------------------------
RPATH="-Wl,-rpath-link,$TMW_ROOT/bin/$Arch"
CC='gcc-4.1'
CFLAGS='-ansi -D_GNU_SOURCE -fexceptions'
CFLAGS="$CFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CLIBS="$RPATH $MLIBS -lm -lstdc++"
COPTIMFLAGS='-O -DNDEBUG'
CDEBUGFLAGS='-g'
#
CXX='g++-4.1'
CXXFLAGS='-ansi -D_GNU_SOURCE'
CXXFLAGS="$CXXFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CXXLIBS="$RPATH $MLIBS -lm"
CXXOPTIMFLAGS='-O -DNDEBUG'
CXXDEBUGFLAGS='-g'
#
#
FC='gfortran'
FFLAGS='-fexceptions'
FFLAGS="$FFLAGS -fPIC -fno-omit-frame-pointer"
FLIBS="$RPATH $MLIBS -lm"
FOPTIMFLAGS='-O'
FDEBUGFLAGS='-g'
#
LD="$COMPILER"
LDEXTENSION='.mexa64'
LDFLAGS="-pthread -shared -Wl,--version-script,$TMW_ROOT/extern/lib/$Arch/$MAPFILE -Wl,--no-undefined"
LDOPTIMFLAGS='-O'
LDDEBUGFLAGS='-g'
#
POSTLINK_CMDS=':'
4) Restart matlab.
You should be able to compile your mex now.
Good luck!
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