build: Fix maxjob default detection #119
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The _SC_NPROCESSORS_ONLN macro is only available when including unistd.h, so the code that calculates the default of maxjobs from number of logical processors is never executed. It looks like this stopped working in 67435a3 "Separate out most OS-specific functions into os-posix.c". Fix this by moving the sysconf call into os-posix.c, similar to other OS specifics.
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The _SC_NPROCESSORS_ONLN macro is only available when including unistd.h, so the code that calculates the default of maxjobs from number of logical processors is never executed. It looks like this stopped working in 67435a3 "Separate out most OS-specific functions into os-posix.c".
Fix this by moving the sysconf call into os-posix.c, similar to other OS specifics.