On 7/12/18, U.Mutlu <um@xxxxxxxxxxx> wrote: > colinb2 . wrote on 07/12/2018 02:52 AM: > Do you mean the make file created by the configure script of gcc, > or do you mean a self-made makefile? I mean the make file created by the configure script of gcc; I think I am - at least for now - incapable of writing my own script! I just tried to make GCC-8.1.0 and that fell over after about 30 minutes! >> https://gcc.gnu.org/ml/gcc/2018-07/msg00159.html > I couldn't figure out yet which hdcode (ie. that of the book) you refer > in the msg00159-link above (or have I maybe overlooked your reference?). > I don't have that book. Can you give the ref-link please if it's among > the codes published at the web site under > http://hackersdelight.org/hdcode.htm http://hackersdelight.org/hdcodetxt/magicu.c.txt This is magicu aand magicu2 in "Hacker's Delight" by Henry S Warren; choose_multiplier_v4 in is my (hopefully improved) version of magicu2.