[plt-scheme] errors for exp version on solaris

I'm getting these error messages when running setup-plt on my Solaris
CVS tree.  I did a cvs update this morning and downloaded the most
recent binaries.  Uname says:

SunOS karla 5.7 Generic_106541-14 sun4u sparc SUNW,Ultra-2

Any idea what's wrong?  Thanks,

Dave

setup-plt: Error during Compiling .zos for Stepper (/pro/plt/plt/SunOS_sparc/exp/plt/collects/stepper)
setup-plt:   private/annotate.ss:1114:33: #%app: illegal use of syntax in: (#%app 2vals-map non-tail-recur (syntax->list (syntax terms)))
setup-plt: Error during Compiling .zos for Stepper private (/pro/plt/plt/SunOS_sparc/exp/plt/collects/stepper/private)
setup-plt:   annotate.ss:1114:33: #%app: illegal use of syntax in: (#%app 2vals-map non-tail-recur (syntax->list (syntax terms)))
setup-plt: Error during Compiling .zos for mzc (/pro/plt/plt/SunOS_sparc/exp/plt/collects/compiler)
setup-plt:   /pro/plt/plt/SunOS_sparc/exp/plt/collects/syntax/zodiac-unit.ss:459:19: #%app: illegal use of syntax in: (#%app mk-back)
setup-plt: Error during Compiling .zos for mzc private (/pro/plt/plt/SunOS_sparc/exp/plt/collects/compiler/private)
setup-plt:   /pro/plt/plt/SunOS_sparc/exp/plt/collects/syntax/zodiac-unit.ss:459:19: #%app: illegal use of syntax in: (#%app mk-back)
setup-plt: Error during Compiling .zos for MrFlow (/pro/plt/plt/SunOS_sparc/exp/plt/collects/mrflow)
setup-plt:   constraints-gen-and-prop.ss:2711:7: set!: illegal use of syntax in: (set! ast-nodes (add1 ast-nodes))
setup-plt: Error during Compiling .zos for HtDP Languages (/pro/plt/plt/SunOS_sparc/exp/plt/collects/lang)
setup-plt:   /pro/plt/plt/SunOS_sparc/exp/plt/collects/errortrace/stacktrace.ss:101:36: #%app: illegal use of syntax in: (#%app stx-null? (syntax rest))
setup-plt: Error during Compiling .zos for Errortrace (/pro/plt/plt/SunOS_sparc/exp/plt/collects/errortrace)
setup-plt:   stacktrace.ss:101:36: #%app: illegal use of syntax in: (#%app stx-null? (syntax rest))
setup-plt: Error during Compiling .zos for DrScheme private (/pro/plt/plt/SunOS_sparc/exp/plt/collects/drscheme/private)
setup-plt:   /pro/plt/plt/SunOS_sparc/exp/plt/collects/errortrace/stacktrace.ss:101:36: #%app: illegal use of syntax in: (#%app stx-null? (syntax rest))
setup-plt: Error during Compiling .zos for Browser (/pro/plt/plt/SunOS_sparc/exp/plt/collects/browser)
setup-plt:   default-load-handler: cannot open input file: "/pro/plt/plt/SunOS_sparc/exp/plt/collects/net/tcp-sig.ss" (No such file or directory; errno=2)