m4--release--1.4--patch-3

[Gary V . Vaughan]

Tree version:   address@hidden/m4--release--1.4
CVSROOT:        /cvsroot/m4
Module name:    /cvsroot/m4/m4
Changes by:     address@hidden

Log Message:

        * Release 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>.

--
Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
GNU Hacker           / )=   http://www.gnu.org/software/libtool
Technical Author   `(_~)_   http://sources.redhat.com/autobook
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