Solaris Portability Pullup - requested by Grant Beattie

Solaris Portability Pullup - requested by Grant Beattie
portability fix for m4

	Module Name:    pkgsrc
	Committed By:   gavan
	Date:           Tue Oct 26 17:00:44 UTC 2004

	Modified Files:
		pkgsrc/devel/m4: Makefile distinfo

	Log Message:
	Update to 1.4.2:

	* configure.in (VERSION): Bump to 1.4.2.
	* NEWS: Describe 1.4.2's changes.

	* src/m4.c (reference_error): Preserve errno, since M4ERROR
	relies on this.
	* src/builtin.c (m4_esyscmd): Clear errno before calling popen.
	(m4_maketemp): Clear errno before calling mkstemp.
	* src/path.c (path_search): Don't let "free" trash errno when
	returning NULL.
	* src/output.c (insert_file): Don't assume errno has a valid
	value simply because fread returns zero.  This fixes a
	portability bug reported by Marion Hakanson in
	<http://lists.gnu.org/archive/html/bug-m4/2004-07/msg00029.html>.

	Fixes PR pkg/27301.