anchor.diff:  REM Clone zlib (libssh2 dependency) and checkout the appropriate tag
   IF !ENABLE_ZLIB! EQU !TRUE! (
   	IF NOT EXIST "!DEPENDENCIES_SOURCE_DIRECTORY!\!ZLIB_DIRECTORY!" (
  -		ECHO | SET /P=Cloning zlib ... 
  -		!GIT! clone !ZLIB_REPOSITORY_URL! "!DEPENDENCIES_SOURCE_DIRECTORY!\!ZLIB_DIRECTORY!" > !LOG_ZLIB_BUILD! 2>&1
  +		ECHO Cloning zlib !ZLIB_BRANCH_TAG_VERSION! > "!LOG_ZLIB_BUILD!"
  +		ECHO | SET /P=Cloning zlib !ZLIB_BRANCH_TAG_VERSION! ... 
  +		!GIT! clone --depth 1 --branch !ZLIB_BRANCH_TAG_VERSION! --single-branch !ZLIB_REPOSITORY_URL! "!DEPENDENCIES_SOURCE_DIRECTORY!\!ZLIB_DIRECTORY!" >> "!LOG_ZLIB_BUILD!" 2>&1
   		IF !ERRORLEVEL! EQU 0 (
   			ECHO done.
  -			PUSHD "!DEPENDENCIES_SOURCE_DIRECTORY!\!ZLIB_DIRECTORY!" > NUL
  -			ECHO | SET /P=Checking out !ZLIB_BRANCH_TAG_VERSION! ... 
  -			ECHO. >> !LOG_ZLIB_BUILD!
  -			!GIT! checkout !ZLIB_BRANCH_TAG_VERSION! >> !LOG_ZLIB_BUILD! 2>&1
  -			IF !ERRORLEVEL! EQU 0 (
  -				ECHO done.
  -			) ELSE (
  -				ECHO FAILED!
  -				ECHO 	See !LOG_ZLIB_BUILD! for more details
  -				EXIT /B !EXIT_CODE_CHECKOUT_FAILED!
  -			)
  -			POPD
   		) ELSE (
   			ECHO FAILED!
   			ECHO 	See !LOG_ZLIB_BUILD! for more details
  
positive.code: IF !ENABLE_OPENSSL! EQU !TRUE! (
  	REM Clone OpenSSL and checkout the appropriate tag
  	IF NOT EXIST "!DEPENDENCIES_SOURCE_DIRECTORY!\!OPENSSL_DIRECTORY!" (
  		ECHO | SET /P=Cloning OpenSSL ... 
  		!GIT! clone !OPENSSL_REPOSITORY_URL! "!DEPENDENCIES_SOURCE_DIRECTORY!\!OPENSSL_DIRECTORY!" > !LOG_OPENSSL_BUILD! 2>&1
  		IF !ERRORLEVEL! EQU 0 (
  			ECHO done.
  			PUSHD "!DEPENDENCIES_SOURCE_DIRECTORY!\!OPENSSL_DIRECTORY!" > NUL
  			ECHO | SET /P=Checking out !OPENSSL_BRANCH_TAG_VERSION! ... 
  			ECHO. >> !LOG_OPENSSL_BUILD!
  			!GIT! checkout !OPENSSL_BRANCH_TAG_VERSION! >> !LOG_OPENSSL_BUILD! 2>&1
  			IF !ERRORLEVEL! EQU 0 (
  				ECHO done.
  			) ELSE (
  				ECHO FAILED!
  				ECHO 	See !LOG_OPENSSL_BUILD! for more details
  				EXIT /B !EXIT_CODE_CHECKOUT_FAILED!
  			)
  			POPD
  		) ELSE (
  			ECHO FAILED!
  			ECHO 	See !LOG_OPENSSL_BUILD! for more details
  
negative.code: SET GYP_REPOSITORY_URL=https://chromium.googlesource.com/external/gyp.git
  SET LIBSSH2_REPOSITORY_URL=http://git.libssh2.org/libssh2.git
  SET LIBSSH2_DIRECTORY=libssh2
  SET LIBSSH2_BRANCH_TAG_VERSION=libssh2-1.5.0
  SET OPENSSL_REPOSITORY_URL=https://github.com/openssl/openssl.git
  SET OPENSSL_DIRECTORY=openssl
  SET OPENSSL_BRANCH_TAG_VERSION=OpenSSL_1_0_2
  