Linker errors with libeng.lib and 64-bit Cygwin g++

Greetings.

I am porting a VS2010 project that embeds a Matlab engine in a C++ program to Cygwin g++ on 64-bit Windows. A test program, MServer.cpp, opens a Matlab engine and evaluates a 'clear' command (source file below.)

When I try to compile and link a test program using the following command line,

g++ MServer.cpp \
  -I "/cygdrive/c/Program Files/MATLAB/R2013b/extern/include"/ \
  -L "/cygdrive/c/Program Files/MATLAB/R2013b/extern/lib/win64/microsoft"/ \
  -llibeng

I get the following errors:

/cygdrive/c/Program Files/MATLAB/R2013b/extern/lib/win64/microsoft//libeng.lib(libeng.dll.b):(.text+0x2): relocation truncated to fit: R_X86_64_32 against symbol `__imp_engEvalString' defined in .idata$5 section in /cygdrive/c/Program Files/MATLAB/R2013b/extern/lib/win64/microsoft//libeng.lib(libeng.dll.b) /cygdrive/c/Program Files/MATLAB/R2013b/extern/lib/win64/microsoft//libeng.lib(libeng.dll.b):(.text+0x2): relocation truncated to fit: R_X86_64_32 against symbol `__imp_engOpen' defined in .idata$5 section in /cygdrive/c/Program Files/MATLAB/R2013b/extern/lib/win64/microsoft//libeng.lib(libeng.dll.b) collect2: error: ld returned 1 exit status

I read that 'relocation truncated' is normally related to a segment > 2 Gb, so I added '-mcmodel=large' to the g++ command line - no improvement.

Help appreciated, thank you.

#include "engine.h"

int main (void)
{
  Engine *matlab;
  if (!(matlab = engOpen("\0"))) 
    return 1;

    engEvalString(matlab, "clear;");
    return 0;
  }