Hi all; I have an ancient 32-bit-only "Atom netbook" that still works. I prefer to use it for lugging around, because it wouldn't be a major loss for me if it got lost or whatever. It's underpowered for gcc, and only has 2 gigabytes of ram. According to the query... gcc -c -Q -march=native --help=target | grep march= ...the cpu is "-march=bonnell". I build binaries for it on my desktop with the following flags... export CFLAGS="-O2 -march=bonnell -mfpmath=sse -pipe -fomit-frame-pointer -fno-unwind-tables -fno-asynchronous-unwind-tables" ...and CXXFLAGS is a copy of CFLAGS. Does that look correct? I'm using the "bonnell" march in gcc 4.9.3 as per... https://gcc.gnu.org/onlinedocs/gcc-4.9.3/gcc/i386-and-x86-64-Options.html#i386-and-x86-64-Options My Google-searching has turned up conflicting responses to the question in the subject. One extreme is in post #3 in thread https://bbs.archlinux.org/viewtopic.php?pid=1423395#p1423395 which says that "-march=atom" is a no-op, which results in a generic build. I figured that the gcc-help list is probably the best source for an authoritative answer to the question... Is "-march=atom" deprecated; and what happens when you invoke it? -- Walter Dnes <waltdnes@xxxxxxxxxxxx>
