Re: seekable stdin

Eric Blake <ebb9 <at> byu.net> writes:

> 
> I fixed this on the branch a while ago, but never ported it to head, in part 
> because cygwin inherited a newlib libc bug that prevented the test from 
working 
> (basically, exit and fclose were not flushing unprocessed data from input 
> streams).  But as of today, the bug in newlib is fixed in CVS.
> 
> 2006-12-14  Eric Blake  <ebb9 <at> byu.net>
> 
> 	* modules/m4.c (m4_sysval_flush): Flush stdin before exiting, as
> 	required by POSIX.
> 	* tests/others.at (stdin seekable): New test.

And only now, six weeks later, am I repairing the testsuite failure that that 
patch introduced.  I really should be testing my './configure --disable-shared' 
branch more often :)

2007-02-05  Eric Blake  <[email protected]>

	* tests/others.at (stdin seekable): Fix bug in test.
	* ltdl/m4/gnulib-cache.m4: Gnulib module strstr no longer exists.


Index: ltdl/m4/gnulib-cache.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/gnulib-cache.m4,v
retrieving revision 1.21
diff -u -r1.21 gnulib-cache.m4
--- ltdl/m4/gnulib-cache.m4	9 Jan 2007 05:05:21 -0000	1.21
+++ ltdl/m4/gnulib-cache.m4	5 Feb 2007 16:18:16 -0000
@@ -15,11 +15,11 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=gnu --m4-
base=ltdl/m4 --doc-base=doc --aux-dir=ltdl/config --libtool --macro-prefix=M4 
assert avltree-oset binary-io clean-temp cloexec close-stream closeout config-h 
configmake dirname error exit fdl filenamecat fopen-safer free gendocs gettext 
gnupload mkstemp obstack progname regex regexprops-generic stdbool stdlib-safer 
strnlen strstr strtol tempname unlocked-io verror xalloc xalloc-die xstrndup 
xstrtol xvasprintf
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=gnu --m4-
base=ltdl/m4 --doc-base=doc --aux-dir=ltdl/config --libtool --macro-prefix=M4 
assert avltree-oset binary-io clean-temp cloexec close-stream closeout config-h 
configmake dirname error exit fdl filenamecat fopen-safer free gendocs gettext 
gnupload mkstemp obstack progname regex regexprops-generic stdbool stdlib-safer 
strnlen strtol tempname unlocked-io verror xalloc xalloc-die xstrndup xstrtol 
xvasprintf
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
-gl_MODULES([assert avltree-oset binary-io clean-temp cloexec close-stream 
closeout config-h configmake dirname error exit fdl filenamecat fopen-safer 
free gendocs gettext gnupload mkstemp obstack progname regex regexprops-generic 
stdbool stdlib-safer strnlen strstr strtol tempname unlocked-io verror xalloc 
xalloc-die xstrndup xstrtol xvasprintf])
+gl_MODULES([assert avltree-oset binary-io clean-temp cloexec close-stream 
closeout config-h configmake dirname error exit fdl filenamecat fopen-safer 
free gendocs gettext gnupload mkstemp obstack progname regex regexprops-generic 
stdbool stdlib-safer strnlen strtol tempname unlocked-io verror xalloc xalloc-
die xstrndup xstrtol xvasprintf])
 gl_AVOID([])
 gl_SOURCE_BASE([gnu])
 gl_M4_BASE([ltdl/m4])
Index: tests/others.at
===================================================================
RCS file: /sources/m4/m4/tests/others.at,v
retrieving revision 1.29
diff -u -r1.29 others.at
--- tests/others.at	19 Dec 2006 17:23:46 -0000	1.29
+++ tests/others.at	5 Feb 2007 16:18:16 -0000
@@ -1,5 +1,5 @@
 # Hand crafted tests for GNU M4.                               -*- Autotest -*-
-# Copyright (C) 2001, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2006, 2007 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -480,11 +480,14 @@
   { echo "skipping: sed is too greedy on seekable stdin"; exit 77; }])
 
 dnl Check external follow-on process, after fatal error.
+dnl We can't use AT_CHECK_M4, so we must post-process stderr ourselves.
 AT_DATA([in.m4], [[dnl(
 0)trailing data
 ]])
 AT_CHECK([(m4 -E; cat) < in.m4], [0], [[trailing data
-]], [[m4:stdin:1: Warning: dnl: extra arguments ignored: 1 > 0
+]], [stderr])
+AT_CHECK([[sed 's/^[^:]*[lt-]*m4[.ex]*:/m4:/' stderr]], [0],
+[[m4:stdin:1: Warning: dnl: extra arguments ignored: 1 > 0
 ]])
 
 dnl Ensure that esyscmd resumes parsing where the child process left off.