[erlang-questions] Erlang/OTP R13A has been released

Thorsten Schuett <>
Wed Mar 18 10:51:46 CET 2009


Hi all,

I have two comments on dialyzer in the beta version:

- The opaqueness checks are great. Already found a mix up with gb_sets and 
gb_trees. However, the change also effects type-declarations:
R13:
-type(db()::gb_tree()).
R12:
-type(db()::gb_trees:gb_tree()).
You are not allowed to specify the module of opaque types anymore. We had to 
add an autoconf test because there seems to be no version which works with 
both. This behavior doesn't seem to be documented in the ChangeLog.

- To solve the problem above, our configure now adds a define for the 
preprocessor ({d, types_are_builtin}) for R13. And we have to do the same for 
dialyzer. According to the docs, dialyzer supports two versions for specifying 
defines "-Dname (or -Dname=value)". Unfortunately only the latter seems to 
work:
 ~/apps/otp-R13A/bin/dialyzer -Dtypes_are_builtin --src -c util.erl

dialyzer: Malformed define: {defines,[types_are_builtin]}

Whereas the following is fine:
~/apps/otp-R13A/bin/dialyzer -Dtypes_are_builtin=1 --src -c util.erl

Thorsten

On Tuesday 17 March 2009, Bjorn Gustavsson wrote:
> Major relese    : otp_src_R13A
> Build date      : 2009-03-17
>
> R13A is a beta release of the next R13B major release.
> We do not recommend it for use in live products.
>
> In the R13B release, there may be incompatibilities
> in new features that were introduced in this R13A release
> (for instance in the Unicode support).
>
> You can download the full source distribution from
>
>   http://www.erlang.org/download/otp_src_R13A.tar.gz
>   http://www.erlang.org/download/otp_src_R13A.readme (this file)
>
> Note: To unpack the TAR archive you need a GNU TAR compatible program.
>
> For installation instructions please read the README that is part of
> the distribution.
>
> The Windows binary distribution can be downloaded from
>
>   http://www.erlang.org/download/otp_win32_R13A.exe
>
>
> On-line documentation can be found at http://www.erlang.org/doc/.
> You can also download the complete HTML documentation or the Unix manual
> files
>
>   http://www.erlang.org/download/otp_doc_html_R13A.tar.gz
>   http://www.erlang.org/download/otp_doc_man_R13A.tar.gz
>
> We also want to thank those that sent us patches, suggestions and bug
> reports,
>
> The OTP Team





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