The attached patch updates the Fortran part of the GCC 4.9 release notes.
Comments are welcome. Otherwise, I intent to commit it soon. (Well, comments are also welcome after committal ;-)
Tobias
Index: changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.9/changes.html,v retrieving revision 1.19 diff -u -p -r1.19 changes.html --- changes.html 25 Jun 2013 08:05:13 -0000 1.19 +++ changes.html 25 Jun 2013 11:22:14 -0000 @@ -137,12 +137,32 @@ void f(int n) { <ul> <li>Compatibility notice: <ul> - <li>Note that the argument passing ABI has changed for scalar dummy - arguments of type <code>INTEGER</code>, <code>REAL</code>, - <code>COMPLEX</code> and <code>LOGICAL</code>, which have - <em>both</em> the <code>VALUE</code> and the <code>OPTIONAL</code> - attribute.</li> - </ul></li> + <li>Module files: The version of the module files (<code>.mod</code>) + has been incremented; additionally, module files are now compressed. + Fortran <code>MODULE</code>s compiled by earlier GCC versions have + to be recompiled, when they are <code>USE</code>d by files compiled + with GCC 4.9, because GCC 4.9 is not able to read <code>.mod</code> + files of earlier GCC versions; attempting to do so gives an error + message. Note: The ABI of the produced assembler data itself has not + changed: object files and libraries are fully compatible to older + versions. (Except for the next items.)</li> + <li>ABI changes: + <ul> + <li>Note that the <a + href="http://gcc.gnu.org/onlinedocs/gfortran/Argument-passing-conventions.html" + >argument passing ABI</a> has changed for scalar dummy + arguments of type <code>INTEGER</code>, <code>REAL</code>, + <code>COMPLEX</code> and <code>LOGICAL</code>, which have + <em>both</em> the <code>VALUE</code> and the <code>OPTIONAL</code> + attribute.</li> + <li>Due to the support of finalization, the virtual table associated + with polymorphic variables has changed. Therefore, code containing + <code>CLASS</code> should be recompiled, including all files which + define derived types involved in the type definition used by + polymorphic variables. (Note: Due to the incremented module version, + trying to mix old code with new code will usually give an error + message.)</li> + </ul></li> <li>The deprecated command-line option <code>-fno-whole-file</code> has been removed. (<code>-fwhole-file</code> is the default since GCC 4.6.) <code>-fwhole-file</code>/<code>-fno-whole-file</code> @@ -167,6 +187,21 @@ void f(int n) { rank; contrary to <code>NO_ARG_CHECK</code> assumed-rank arguments pass an array descriptor which contains the array shape and stride of the argument.</li> + <li><a href="http://gcc.gnu.org/wiki/Fortran2003Status">Fortran 2003</a>: + <ul> + <li>Finalization is now supported. Note that finalization is currently + only done for a subset of the situations in which it should occur.</li> + </li></ul> + <li><a href="http://gcc.gnu.org/wiki/Fortran2008Status">Fortran 2008</a>: + <ul> + <li>When <code>STOP</code> or <code>ERROR STOP</code> is used to terminate + the execution and any exception (but inexact) is signaling, a warning is + printed to <code>ERROR_UNIT</code>, indicating which exceptions are + signaling. The <code><a + href="http://gcc.gnu.org/onlinedocs/gfortran/Debugging-Options.html" + >-ffpe-summary=</a></code> command-line option can be used to fine-tune + for which exception the warning should be shown.</li> + </li></ul> </ul> <!--