8b7f8b56f1
This patch adds the configuration file variable "build-cores" and the command line argument "--cores". These settings specify the number of CPU cores to utilize for parallel building within a job, i.e. by passing an appropriate "-j" flag to GNU Make. The default value is 1, which means that parallel building is *disabled*. If the number of build cores is specified as 0 (synonymously: "guess" or "auto"), then the actual value is supposed to be auto-detected by builders at run-time, i.e by calling the nproc(1) utility from coreutils. The environment variable $NIX_BUILD_CORES is available to builders, but the contents of that variable does *not* influence the hash that goes into the $out store path, i.e. the number of build cores to be utilized can be changed at will without requiring any re-builds. |
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.. | ||
bin2c | ||
boost | ||
bsdiff-4.3 | ||
libexpr | ||
libmain | ||
libstore | ||
libutil | ||
nix-env | ||
nix-hash | ||
nix-instantiate | ||
nix-log2xml | ||
nix-setuid-helper | ||
nix-store | ||
nix-worker | ||
Makefile.am |