[SCM] GNU Autoconf source repository branch, master, updated. v2.61a-308-gce4ff03

[Ralf Wildenhues]

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- Log -----------------------------------------------------------------
commit ce4ff0376345c1dae710879293c5aa61d96fd446
Author: Ralf Wildenhues <address@hidden>
Date:   Fri Nov 23 19:42:00 2007 +0100

    Fix awk script optimization.
    
    * lib/autotest/general.m4 (AT_INIT): For awk line number
    extraction script, ensure `$at_group' has a defined value
    even for the empty set, and properly quote its usage inside
    the awk script.

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

Summary of changes:
 ChangeLog               |    7 +++++++
 lib/autotest/general.m4 |    4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index efc33d0..d6d42ea 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2007-11-23  Ralf Wildenhues  <address@hidden>
+
+       * lib/autotest/general.m4 (AT_INIT): For awk line number
+       extraction script, ensure `$at_group' has a defined value
+       even for the empty set, and properly quote its usage inside
+       the awk script.
+
 2007-11-22  Ralf Wildenhues  <address@hidden>
 
        * doc/autoconf.texi (Shell Functions): New chapter.  Document
diff --git a/lib/autotest/general.m4 b/lib/autotest/general.m4
index b40db8d..6fa3f2e 100644
--- a/lib/autotest/general.m4
+++ b/lib/autotest/general.m4
@@ -873,7 +873,7 @@ else
 fi
 
 # Get the last needed group.
-for at_group in $at_groups; do :; done
+for at_group in : $at_groups; do :; done
 
 # Extract the start and end lines of each test group at the tail
 # of this file
@@ -885,7 +885,7 @@ BEGIN { FS="" }
 /address@hidden:@AT_STOP_/ {
   test = substr ($ 0, 10)
   print "at_sed" test "=\"1," start "d;" NR "q\""
-  if (test == '$at_group') exit
+  if (test == "'"$at_group"'") exit
 }' "$at_myself" > "$at_test_source"
 . "$at_test_source"
 


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