gqf/partitioned_counter.c:15:10: fatal error: 'sys/sysinfo.h' file not found

[tseemann]

Building on MacOS has a new issue:

g++ -std=c++11 -Wall   -Ofast -msse4.2 -D__SSE4_2_ -m64 -I. -Iinclude  -c -o obj/partitioned_counter.o src/gqf/partitioned_counter.c
src/gqf/partitioned_counter.c:15:10: fatal error: 'sys/sysinfo.h' file not found
#include <sys/sysinfo.h>
         ^~~~~~~~~~~~~~~
1 error generated.

See: https://stackoverflow.com/questions/12523704/mac-os-x-equivalent-header-file-for-sysinfo-h-in-linux