MAXBG             134 src/cmd/dist/plan9.c #define MAXBG 4 /* maximum number of jobs to run at once */
MAXBG             144 src/cmd/dist/unix.c #define MAXBG 4 /* maximum number of jobs to run at once */
MAXBG             259 src/cmd/dist/windows.c #define MAXBG 4 /* maximum number of jobs to run at once */