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-1.2.0.8/configure =================================================================== --- librsb-1.2.0.8.orig/configure +++ librsb-1.2.0.8/configure @@ -23751,9 +23751,11 @@ cat >>confdefs.h <<_ACEOF _ACEOF +if test "x$memhinfo" = x; then cat >>confdefs.h <<_ACEOF #define RSB_DETECTED_MEM_HIERARCHY_INFO "$RSB_DETECTED_MEM_HIERARCHY_INFO" _ACEOF +fi cat >>confdefs.h <<_ACEOF Index: librsb-1.2.0.8/configure.ac =================================================================== --- librsb-1.2.0.8.orig/configure.ac +++ librsb-1.2.0.8/configure.ac @@ -324,7 +324,9 @@ 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