Document awk printf %u bug on HP-UX/IA.

* doc/autoconf.texi (Limitations of Usual Tools): Mention awk %u
bug on HP-UX/IA.
Report by Peter O'Gorman.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

diff --git a/ChangeLog b/ChangeLog
index 82d722e0e4261c8062f5d2fb54f21f33d7c6b22e..5d00e73a5d85e192de326dd0aebb76afdaa0da1a 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-04-03  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+       * doc/autoconf.texi (Limitations of Usual Tools): Mention awk %u
+       bug on HP-UX/IA.
+       Report by Peter O'Gorman.
+
 2008-04-02  Eric Blake  <ebb9@byu.net>
 
        Recommend the just-released M4 1.4.11.

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 7a8b2efe6bd0f97efba58d5e2b4f019db85c0db1..8bbfdde2b7269a4f1c42c6e927f09822a6dd032e 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -14541,6 +14541,14 @@ bar
 Either do not depend on such patterns (i.e., use @samp{/^(.*foo|bar)/},
 or use a simple test to reject such implementations.
 
+On @samp{ia64-hp-hpux11.23}, Awk mishandles @code{printf} conversions
+after @code{%u}:
+
+@example
+$ @kbd{awk 'BEGIN @{ printf "%u %d\n", 0, -1 @}'}
+0 0
+@end example
+
 @acronym{AIX} version 5.2 has an arbitrary limit of 399 on the
 length of regular expressions and literal strings in an Awk program.