cannot make it

make all
CC src/kernel/init/main.o
src/kernel/init/main.c:85:5: error: first parameter of 'main' (argument count)
must be of type 'int'
int main(struct multiboot _mboot_ptr)
^
1 error generated.
make: *_\* [src/kernel/init/main.o] Error 1

wonder ... seems ok ... (using mac brew and mac apple llvm:

gcc -v
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 7.3.0 (clang-703.0.31)
Target: x86_64-apple-darwin15.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
)

Run make with the reported macOS Apple LLVM toolchain, then inspect src/kernel/init/main.c around line 85 and the compiler diagnostic. Compare the declared main entry point with the build's expectations; done means src/kernel/init/main.o compiles and make completes without this error.

Written by the indexing model from the issue text.