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Update release notes with opt-in instructions

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Ralph Lange
2017-03-30 16:26:54 +02:00
parent ecf5ab4a4c
commit bad1b0ead3
1 changed files with 11 additions and 5 deletions
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16
documentation/RELEASE_NOTES.html
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@@ -33,12 +33,18 @@ a script by starting those lines with '#-' rather than just '#'.</p>
<p>The table of record support functions (rset methods for short) no longer
has entries of type <tt>RECSUPFUN</tt> (which says: any number and type of
arguments). Instead, rset methods are now typed by default. The
<tt>RECSUPFUN</tt> typedef has been removed and casts to <tt>RECSUPFUN</tt>
can no longer be used when initializing <tt>struct rset</tt>.</p>
<tt>RECSUPFUN</tt> typedef has been deprecated and casts to it as well as
using the untyped <tt>struct rset</tt> will create compilation warnings.</p>
<p>Existing code (e.g. external record supports) might not compile cleanly
against the new rset definition without changes, but after making these
changes the result should still compile and work properly against older
<p>Existing code (e.g. external record supports) will generate such
warnings when compiled against this version of Base, but it will work
without changes.</p>
<p>For a conversion period, the new typed rset definitions are activated
by defining <tt>USE_TYPED_RSET</tt>, preferably by setting
<tt>USR_CPPFLAGS += -DUSE_TYPED_RSET</tt> inside a Makefile.
After activating the new typed rset in this way and making the following
changes, the result should still compile and work properly against older
versions of Base.</p>
<p>The first parameter of <tt>init_record</tt> and <tt>process</tt> has been