Document awk and config.status line length limitations.

* doc/autoconf.texi (Configuration Actions): The input to
config.status should have reasonable line length.
(Limitations of Usual Tools): Document IRIX, HP-UX awk input
line length limit.
Report by Bruno Haible.

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

diff --git a/ChangeLog b/ChangeLog
index 3272e5f6cf212f6fb20e3cf546f158e127406988..a381a3806fa58d732c59f05e517b01e1633a1a6c 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2009-04-10  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
+       Document awk and config.status line length limitations.
+       * doc/autoconf.texi (Configuration Actions): The input to
+       config.status should have reasonable line length.
+       (Limitations of Usual Tools): Document IRIX, HP-UX awk input
+       line length limit.
+       Report by Bruno Haible.
+
        Skip `Multiple languages' test if CC is a C++ compiler.
        * tests/compile.at (Multiple languages): Before starting the
        test proper, build and run a configure script that tests the

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index b5ff0af6f4a6ddf6124c68e31cfd352f1357b496..32855a983939a59f7f851d6a9f3b93e0a772724f 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -2153,7 +2153,8 @@ for more details.
 
 The @var{inputs} may be absolute or relative file names.  In the latter
 case they are first looked for in the build tree, and then in the source
-tree.
+tree.  Input files should be text files, and a line length below 2000
+bytes should be safe.
 
 @item commands
 Shell commands output literally into @file{config.status}, and
@@ -16366,6 +16367,9 @@ The original version of Awk had a limit of at most 99 bytes per
 per run of non-special characters in a @code{printf} format, but these
 bugs have been fixed on all practical hosts that we know of.
 
+HP-UX 11.00 and IRIX 6.5 Awk require that input files have a line length
+of at most 3070 bytes.
+
 @item @command{basename}
 @c ---------------------
 @prindex @command{basename}