I want to use latest z88dk in a macOS 10.13 High Sierra setup. But I don't seem to succeed.

Downloading latest nightly build for OSX: http://nightly.z88dk.org/z88dk-osx-latest.zip, when trying to compile the simplest C program it yields this error:
and if I try to build z88dk from scratch cloned from Git and running ./build.sh, another error happens:zcc +zx -vn -startup=0 -clib=sdcc_iy main.c -o main -create-app
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
Referenced from: /Users/None/Documents/Webs/z88dk/bin/z88dk-zsdcpp (which was built for Mac OS X 11.0)
Expected in: /usr/lib/libSystem.B.dylib
dyld: Symbol not found: ____chkstk_darwin
Referenced from: /Users/None/Documents/Webs/z88dk/bin/z88dk-zsdcpp (which was built for Mac OS X 11.0)
Expected in: /usr/lib/libSystem.B.dylib
make: *** [all] Error 1
My version of the Apple LLVM installation is:gcc -std=gnu11 -MMD -Wall -O3 -I. -Isrc -Isrc/c -It -I../common -I../../ext/optparse -I../../ext/regex -I../../ext/uthash/src -g -O2 -c -o ../../ext/regex/regfree.o ../../ext/regex/regfree.c
c++ -std=gnu++17 -MMD -Wall -O3 -I. -Isrc -Wextra -Werror -pedantic-errors -Isrc/cpp -c -o src/cpp/args.o src/cpp/args.cpp
In file included from src/cpp/args.cpp:8:
In file included from src/cpp/args.h:10:
src/cpp/utils.h:22:11: fatal error: 'experimental/filesystem' file not found
#include <experimental/filesystem>
^~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
make[1]: *** [src/cpp/args.o] Error 1
make: *** [bin/z88dk-z80asm] Error 2
Am I missing something? Any hint? Or is macOS 10.1x unsupported?Apple LLVM version 10.0.0 (clang-1000.11.45.5)
Target: x86_64-apple-darwin17.7.0
Thread model: posix
Thanks in advance!
