Avoid copying the arch-string multiple times until the highest level of support is reached.
Avoid copying the arch-string multiple times until the highest level of support is reached.

hfp/libxsmm,hfp/libxsmm,maxhutch/libxsmm,egeor/libxsmm,hfp/libxsmm,hfp/libxsmm,egeor/libxsmm,maxhutch/libxsmm,egeor/libxsmm,hfp/libxsmm,maxhutch/libxsmm,hfp/libxsmm,maxhutch/libxsmm,egeor/libxsmm,egeor/libxsmm,egeor/libxsmm