commit ca33b6e875e7c250cbbdfc593fcce6572faa8e3e
author Daniel Dunbar <daniel@zuster.org> Fri Jan 27 08:43:26 2017 -0800
committer GitHub <noreply@github.com> Fri Jan 27 08:43:26 2017 -0800
tree 3ab2bebac471be6fc245223ffbbb4e69f3f70f83
parent bf6b19434479aabe6970e7209eff8eb3782a4204
parent 59e549188d15d492d29e55116bf814b684deb517

Merge pull request #100 from hughbe/sysconf-another

Fix another use of `sysconf` instead of platform independent c++ 11

lib/Commands/NinjaBuildCommand.cpp

diff --git a/lib/Commands/NinjaBuildCommand.cpp b/lib/Commands/NinjaBuildCommand.cpp
index fd746bd..e49a2b9 100644
--- a/lib/Commands/NinjaBuildCommand.cpp
+++ b/lib/Commands/NinjaBuildCommand.cpp
@@ -1943,8 +1943,8 @@
     // FIXME: Do a serious analysis of scheduling, including ideally an active
     // scheduler in the execution queue.
     if (numJobsInParallel == 0) {
-      long numCPUs = sysconf(_SC_NPROCESSORS_ONLN);
-      if (numCPUs < 0) {
+      unsigned numCPUs = std::thread::hardware_concurrency();
+      if (numCPUs == 0) {
         context.emitError("unable to detect number of CPUs (%s)",
                           strerror(errno));
         return 1;