diff options
| -rw-r--r-- | src/libstore/globals.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc index c359367bb..739199d48 100644 --- a/src/libstore/globals.cc +++ b/src/libstore/globals.cc @@ -5,6 +5,7 @@ #include <map> #include <algorithm> +#include <unistd.h> namespace nix { @@ -29,6 +30,10 @@ Settings::Settings() buildVerbosity = lvlError; maxBuildJobs = 1; buildCores = 1; +#ifdef _SC_NPROCESSORS_ONLN + long res = sysconf(_SC_NPROCESSORS_ONLN); + if (res > 0) buildCores = res; +#endif readOnlyMode = false; thisSystem = SYSTEM; maxSilentTime = 0; |