_POSIX_C_SOURCE    18 src/dps8/dps8_duma.h #  define _POSIX_C_SOURCE 1
_POSIX_C_SOURCE   264 src/libsir/include/sir/platform.h #    define _POSIX_C_SOURCE 200809L
_POSIX_C_SOURCE    49 src/simh/linehistory.c # define _POSIX_C_SOURCE 200809L
_POSIX_C_SOURCE    49 src/simh/linehistory.h # define _POSIX_C_SOURCE 200809L
_POSIX_C_SOURCE    53 src/simh/linehistory.h # undef _POSIX_C_SOURCE
_POSIX_C_SOURCE    54 src/simh/linehistory.h # define _POSIX_C_SOURCE 200809L