REGS_REALLOCATE   454 lib/regex.h    # define REGS_REALLOCATE 1
REGS_REALLOCATE   849 src/regex-emacs.c enum { REGS_UNALLOCATED, REGS_REALLOCATE, REGS_FIXED };
REGS_REALLOCATE   377 test/manual/etags/c-src/emacs/src/regex.h #define REGS_REALLOCATE 1