Errors in bwblkslv.mexmaci64 when compiling with mex (Matlab 2013a)

Using gcc / g++ 4.4.7,

I first get the following errors on attempting to compile SeDuMi: mex: compile of ' "bwblkslv.c"' failed.

Then I follow the suggestion in http://www.mathworks.de/matlabcentral/answers/59490. I type the following line:

mex -O -DUNIX bwblkslv.c sdmauxFill.c sdmauxRdot.c "-lmwlapack"

This time, I have the following errors:

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

I do not have any idea on this problem. Do you have any solution? Thank you very much.

[Kaustubha Govind]

You might want to add the -v (verbose) option to see more information about the failure.