2008-05-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/35990
	* intrinsics/pack_generic.c:  If an extent of the source
	array is less then zero, set it to zero.  Set the source
	pointer to NULL if the source size is zero.  Set the total
	number of elements to zero if the vector has an extent
	less or equal to zero.
	* m4/pack.m4:  Set the source pointer to NULL if the
	source array is zero-sized.  Set the total number of
	elemements to zero if the vector has an extent less or
	equal to zero.
	* generated/pack_i1.c:  Regenerated.
	* generated/pack_i2.c:  Regenerated.
	* generated/pack_i4.c:  Regenerated.
	* generated/pack_i8.c:  Regenerated.
	* generated/pack_i16.c:  Regenerated.
	* generated/pack_r4.c:  Regenerated.
	* generated/pack_r8.c:  Regenerated.
	* generated/pack_r10.c:  Regenerated.
	* generated/pack_r16.c:  Regenerated.
	* generated/pack_c4.c:  Regenerated.
	* generated/pack_c8.c:  Regenerated.
	* generated/pack_c10.c:  Regenerated.
	* generated/pack_c16.c:  Regenerated.

2008-05-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/35990
	* gfortran.dg/intrinsic_pack_4.f90:  New test case.

From-SVN: r134927