LAPACKE - DGELS example in user guide

[JennieEnglish]

Hi, all. I'm a complete novice, and am squirming around in the quicksand, making things worse, I'm sure. I have used LAPACK with BLAS in the past, but I've forgotten it all by now.

I've tried to make LAPACK and LAPACKE, and then to compile the DGELS calling program given on page 7 of the LAPACKE user guide (which I've called call_dgels.c). I was initially getting an error about not having libblas.a anywhere, so I got a copy from a random place and have put it in lapack-3.4.0 (I'm not sure this is the right place, or right thing to do at all), remade lapack-3.4.0 and lapacke, and tried again to compile call_dgels.c with:

gcc -o call_dgels -I/home/userName/preprocessing/lapack-3.4.0/lapacke/include/ call_dgels.c /home/userName/preprocessing/lapack-3.4.0/lapacke/lapacke.a /home/userName/preprocessing/lapack-3.4.0/liblapack.a /home/userName/preprocessing/lapack-3.4.0/liblapack.a /home/userName/preprocessing/lapack-3.4.0/libblas.a -lm

but I get the following error message:

/home/userName/preprocessing/lapack-3.4.0/liblapack.a(dgels.o): In function `dgels_':
dgels.f:(.text+0xe0c): undefined reference to `_intel_fast_memset'
dgels.f:(.text+0x1058): undefined reference to `_intel_fast_memset'
...

What stupid thing have I done (or not done)?

Thanks, and sorry for my daftness.