I tried to fixup the examples in collects/mzscheme/examples but ran into
some issues.
If I compile catch.c into catch.so and run it with this code
x.ss:
(load-extension "catch.so")
(printf "~a\n" (eval-string/catch-error "(+ 1 'a)"))
$ mzscheme -f x.ss
Then I get:
#f::0: compile: unbound identifier (and no #%app syntax transformer is
bound) at: lambda in: (lambda (thunk) (with-handlers ((void (lambda
(exn) (cons #f exn)))) (cons #t (thunk))))
Which usually means scheme/base hasn't been require'd. Putting (require
scheme/base) into x.ss doesn't help so I tried modifying the C code.
Probably the environment in `init_exn_catching_apply' has to be modified
but the only way I can see to modify namespaces is with
scheme_namespace_require. So I put `env' into the current MZCONFIG_ENV
param and called
scheme_namespace_require(scheme_intern_symbol("scheme/base")) but when I
load the resulting .so I get an infinite loop.
Is `scheme_make_namespace' the wrong function to call to get a new
namespace?
Also, not a big deal, but this command
mzc --3m --cc catch.3m.c
produces catch_3m.c instead of catch.c. The docs say it would produce
catch.c.
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