The fix is generate the names of the .zo files from the full file names of the .ss, not the file name trimmed of the .ss extension. Change is fairly trivial.
This is the error message:
> (sake "build.ss" 'all)
building collection name: (sake.ss)
make: checking zo
make: checking compiled/sake.zo
make: checking sake.ss
make: making compiled/sake.zo because compiled/sake.zo does not exist
[output to "compiled/sake_ss.zo"]
make: dependancy compiled/sake.zo was not made
=== context ===
for-loop
/usr/local/plt/collects/make/make-unit.ss:74:2: make-file
for-loop
core
/usr/local/plt/collects/scheme/private/misc.ss:74:7
--------------------------
This error basically says the file sake_ss.zo is being built, but make is looking for a file called sake.zo.
svn: r11500