[SCM] GNU Automake branch, branch-1-10, updated. Release-1-10-45-gd9f29f9

[Ralf Wildenhues]

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- Log -----------------------------------------------------------------
commit d9f29f9126d7a01b2c431a880d7ce4520fbe2d4e
Author: Ralf Wildenhues <address@hidden>
Date:   Sun Nov 18 15:31:20 2007 +0100

    Fix signal handling in aclocal.
    
    * aclocal.in (unlink_tmp): If invoked by a signal, note so
    in verbose mode.  Reinstall default signal handler and reraise,
    to transport the interrupt information.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog  |    7 +++++++
 aclocal.in |   15 ++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 1dff7cd..5dd7c48 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2007-11-18  Ralf Wildenhues  <address@hidden>
+
+       Fix signal handling in aclocal.
+       * aclocal.in (unlink_tmp): If invoked by a signal, note so
+       in verbose mode.  Reinstall default signal handler and reraise,
+       to transport the interrupt information.
+
 2007-11-12  Ralf Wildenhues  <address@hidden>
 
        Avoid spurious test failure with `make check TESTS=check5.test'.
diff --git a/aclocal.in b/aclocal.in
index eac545f..195ef81 100644
--- a/aclocal.in
+++ b/aclocal.in
@@ -150,14 +150,27 @@ my $erase_me;
 
 ################################################################
 
-# Erase temporary file ERASE_ME.
+# Erase temporary file ERASE_ME.  Handle signals.
 sub unlink_tmp
 {
+  my ($sig) = @_;
+
+  if ($sig)
+    {
+      verb "caught SIG$sig, bailing out";
+    }
   if (defined $erase_me && -e $erase_me && !unlink ($erase_me))
     {
       fatal "could not remove `$erase_me': $!";
     }
   undef $erase_me;
+
+  # reraise default handler.
+  if ($sig)
+    {
+      $SIG{$sig} = 'DEFAULT';
+      kill $sig => $$;
+    }
 }
 
 $SIG{'INT'} = $SIG{'TERM'} = $SIG{'QUIT'} = $SIG{'HUP'} = 'unlink_tmp';


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