--- pcre2-10.34/src/pcre2test.c.orig Sun Jan 19 18:24:43 2020 +++ pcre2-10.34/src/pcre2test.c Sun Jan 19 18:24:59 2020 @@ -8604,7 +8604,7 @@ else if (strcmp(arg, "-S") == 0 && argc > 2 && ((uli = strtoul(argv[op+1], &endptr, 10)), *endptr == 0)) { -#if defined(_WIN32) || defined(WIN32) || defined(__minix) || defined(NATIVE_ZOS) || defined(__VMS) +#if defined(_WIN32) || defined(WIN32) || defined(__minix) || defined(NATIVE_ZOS) || defined(__VMS) || defined(__serenity__) fprintf(stderr, "pcre2test: -S is not supported on this OS\n"); exit(1); #else