Small fixes to Makefiles to be able to build the kernel on

macOS again.

Details

- We are using the toolchain compiler and archiver in order
to generate a proper ELF file when building the 'raw-cpuid'
crate C code which is currently being compiled by the macOS
toolchain.

- I added the 'findutils' and 'coreutils' Homebrew/MacPorts
packages to the bootstrap script in order to setup the proper
environment for the cookbook scripts (as the assume GNU tools).
This should be temporary until the cookbook scripts get migrated
to Rust.

bootstrap.sh

@@ -93,6 +93,8 @@ osx_macports()
         install_macports_pkg "virtualbox"
     fi
 
+    install_macports_pkg "coreutils"
+    install_macports_pkg "findutils"
     install_macports_pkg "gcc49" "gcc-4.9"
     install_macports_pkg "nasm"
     install_macports_pkg "pkgconfig"
@@ -120,6 +122,8 @@ osx_homebrew()
         install_brew_pkg "virtualbox"
     fi
 
+    install_macports_pkg "coreutils"
+    install_macports_pkg "findutils"
     install_brew_pkg "gcc49" "gcc-4.9"
     install_brew_pkg "nasm"
     install_brew_pkg "pkg-config"
@@ -298,7 +302,7 @@ gentoo()
 solus()
 {
 	echo "Detected SolusOS"
-	
+
 	if [ "$1" == "qemu" ]; then
 		if [ -z "$(which qemu-system-x86_64)" ]; then
 			sudo eopkg it qemu
@@ -314,7 +318,7 @@ solus()
 			echo "Virtualbox already installed!"
 		fi
 	fi
-	
+
 	echo "Installing necessary build tools..."
 	#if guards are not necessary with eopkg since it does nothing if latest version is already installed
 	sudo eopkg it fuse-devel git gcc g++ libgcc-32bit libstdc++-32bit nasm make