Homebrew package can't be build because of file permissions issues - makefile

Question

I want to submit a PR to Homebrew #20409 that should update libp11 from version 0.2.8 to 0.4.7 however I have some problems running the installation locally.
I am pulling my patch 20409 and to an interactive installation.
brew pull https://github.com/Homebrew/homebrew-core/pull/20409
brew install --interactive libp11
after
./configure
make
make install
Make install complains about cannot create regular file ... Operation not permitted
It seems that sudo rights are needed, but I am not sure if its the correct way to do so.
make install
Making install in src
/usr/local/bin/gmkdir -p '/usr/local/Cellar/openssl/1.0.2m/lib/engines'
/usr/local/bin/gmkdir -p '/usr/local/lib'
/usr/local/bin/gmkdir -p '/usr/local/include'
/bin/sh ../libtool --mode=install /usr/local/bin/ginstall -c libp11.la '/usr/local/lib'
/bin/sh ../libtool --mode=install /usr/local/bin/ginstall -c pkcs11.la '/usr/local/Cellar/openssl/1.0.2m/lib/engines'
/usr/local/bin/gmkdir -p '/usr/local/lib/pkgconfig'
/usr/local/bin/ginstall -c -m 644 libp11.h p11_err.h '/usr/local/include'
/usr/local/bin/ginstall -c -m 644 libp11.pc '/usr/local/lib/pkgconfig'
ginstall: cannot create regular file '/usr/local/include/libp11.h': Operation not permitted
ginstall: cannot create regular file '/usr/local/include/p11_err.h': Operation not permitted
make[2]: *** [install-includeHEADERS] Error 1
make[2]: *** Waiting for unfinished jobs....
ginstall: cannot create regular file '/usr/local/lib/pkgconfig/libp11.pc': Operation not permitted
make[2]: *** [install-pkgconfigDATA] Error 1
libtool: install: /usr/local/bin/ginstall -c .libs/libp11.2.dylib /usr/local/lib/libp11.2.dylib
libtool: install: /usr/local/bin/ginstall -c .libs/pkcs11.dylib /usr/local/Cellar/openssl/1.0.2m/lib/engines/pkcs11.dylib
ginstall: cannot create regular file '/usr/local/lib/libp11.2.dylib': Operation not permitted
ginstall: cannot create regular file '/usr/local/Cellar/openssl/1.0.2m/lib/engines/pkcs11.dylib': Operation not permitted
make[2]: *** [install-libLTLIBRARIES] Error 1
make[2]: *** [install-enginesexecLTLIBRARIES] Error 1
make[1]: *** [install-am] Error 2
make: *** [install-recursive] Error 1
Usually I would call sudo make install however this is not permitted operation not permitted: sudo with Homebrew.
I am running the tests on MAC OS Sierra and not Hight Sierra, so this issues does not apply

Answer 1

I know you said you're running Sierra, but this still just looks like a file permissions problem. For Sierra, you should be able to do this:
sudo chown -R $(whoami) $(brew --prefix)
That other article you linked said that /usr/local cannot be chown'd (good to know, I'll hit that soon.....) so the "fix" was just to chown everything underneath there:
sudo chown -R $(whoami) $(brew --prefix)/*
which would work fine if the directories you need to write to are already created.