[Patch, Fortran] PR42257: [OOP] Compiler segmentation fault due missing public statement

[Janus Weil]

Hi all,

here is a simple patch for an issue related to module loading/writing
and type extension. The problem is that 'write_derived_extensions'
writes all extensions of a type to the module file, without checking
if they are private. This creates trouble in reading the module file,
when one tries to load the private symbol.

The patch was regtested on x86_64-unknown-linux-gnu without failures.
Ok for trunk?

Cheers,
Janus


gcc/fortran/
2009-12-11 Janus Weil  <janus@gcc.gnu.org>

	PR fortran/42257
	* module.c (write_dt_extensions): Check for accessibility.

gcc/testsuite/
2009-12-11  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/42257
	* gfortran.dg/extends_9.f03: New test.
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