Author: Bernhard M. Wiedemann Date: 2018-07-12 When setting an explicit memory hierarchy at configure time, the autodetected one will never be used, so we do not need to store it. This allows for building identical librsb packages on different hosts. See https://reproducible-builds.org/ for why this is good. --- configure | 2 ++ configure.ac | 2 ++ 2 files changed, 4 insertions(+) Index: librsb-1.3.0.1/configure =================================================================== --- librsb-1.3.0.1.orig/configure +++ librsb-1.3.0.1/configure @@ -27208,7 +27208,9 @@ printf "%s\n" "#define RSB_WANT_IO_LEVEL printf "%s\n" "#define RSB_USER_SET_MEM_HIERARCHY_INFO \"$RSB_USER_SET_MEM_HIERARCHY_INFO\"" >>confdefs.h +if test "x$memhinfo" = x; then printf "%s\n" "#define RSB_DETECTED_MEM_HIERARCHY_INFO \"$RSB_DETECTED_MEM_HIERARCHY_INFO\"" >>confdefs.h +fi printf "%s\n" "#define RSB_CONST_MAX_SUPPORTED_THREADS $RSB_CONST_MAX_SUPPORTED_THREADS" >>confdefs.h Index: librsb-1.3.0.1/configure.ac =================================================================== --- librsb-1.3.0.1.orig/configure.ac +++ librsb-1.3.0.1/configure.ac @@ -627,7 +627,9 @@ if test "x${detected_memhinfo}" = x -a " memhinfo="${FALLBACK_MEM_HIERARCHY_INFO}" fi AC_SUBST([RSB_USER_SET_MEM_HIERARCHY_INFO],"${memhinfo}") +if test "x$memhinfo" = x; then AC_SUBST([RSB_DETECTED_MEM_HIERARCHY_INFO],"${detected_memhinfo}") +fi dnl AC_DEFINE([RSB_USER_SET_MEM_HIERARCHY_INFO],[$memhinfo],[If not null, the library will rely on this for memory hierarchy info.]) dnl dnl