Issue 3397: Mac 3.0 build cannot find cachersrc.py

$ sw_vers
ProductName:    Mac OS X
ProductVersion: 10.4.11
BuildVersion:   8S165

./configure --enable-framework
make
...
make install
Creating directory
/Library/Frameworks/Python.framework/Versions/3.0/Mac/Tools
DYLD_FRAMEWORK_PATH=/Users/barry/Work/Python-3.0b1: ../python.exe
./scripts/cachersrc.py -v
/Library/Frameworks/Python.framework/Versions/3.0/lib/python3.0/plat-mac
/Library/Frameworks/Python.framework/Versions/3.0/Mac/Tools
../python.exe: can't open file './scripts/cachersrc.py': [Errno 2] No
such file or directory
make[1]: *** [installmacsubtree] Error 2
make: *** [frameworkinstallmaclib] Error 2