Confirming that putting back NO_REGEX = YesPlease in the Makefile fixes the problem. I.e. the following patch fixes it for me: --- Makefile 2023-03-25 11:24:01.000000000 -0400 +++ Makefile.patched 2023-03-25 11:25:11.000000000 -0400 @@ -1554,6 +1554,7 @@ APPLE_COMMON_CRYPTO = YesPlease COMPAT_CFLAGS += -DAPPLE_COMMON_CRYPTO endif + NO_REGEX = YesPlease PTHREAD_LIBS = endif Perhaps the real problem is that the build system should not use macOS native regex library is its configured to use —pcre2 library.