Note GNU m4 1.0 bugs.

diff --git a/autoconf.texi b/autoconf.texi
index 0ee948a72e58bad3f5c5e0a35776b493e6419a07..9907f25d1490846763dea0ce6bbe2fb4ab506881 100644 (file)
--- a/autoconf.texi
+++ b/autoconf.texi
@@ -215,8 +215,9 @@ Autoconf imposes some restrictions on the names of macros used with
 @code{#ifdef} in C programs (@pxref{Preprocessor Symbol Index}).
 
 Autoconf requires GNU @code{m4} in order to generate the scripts.  It
-uses features that some UNIX versions of @code{m4} do not have; it is
-also reported to overflow internal limits of some versions of @code{m4}.
+uses features that some UNIX versions of @code{m4} do not have.  It also
+overflows internal limits of some versions of @code{m4}, including GNU
+@code{m4} 1.0; so use a later version of GNU @code{m4}.
 
 Autoconf does not work well with GNU C library releases before 1.06.
 The GNU C library contains stubs (which always return an error) for

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 0ee948a72e58bad3f5c5e0a35776b493e6419a07..9907f25d1490846763dea0ce6bbe2fb4ab506881 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -215,8 +215,9 @@ Autoconf imposes some restrictions on the names of macros used with
 @code{#ifdef} in C programs (@pxref{Preprocessor Symbol Index}).
 
 Autoconf requires GNU @code{m4} in order to generate the scripts.  It
-uses features that some UNIX versions of @code{m4} do not have; it is
-also reported to overflow internal limits of some versions of @code{m4}.
+uses features that some UNIX versions of @code{m4} do not have.  It also
+overflows internal limits of some versions of @code{m4}, including GNU
+@code{m4} 1.0; so use a later version of GNU @code{m4}.
 
 Autoconf does not work well with GNU C library releases before 1.06.
 The GNU C library contains stubs (which always return an error) for