===================================================================
@@ -324,7 +324,7 @@ Necessary (only on some platforms) to untar the so
systems' @command{tar} programs will also work, only try GNU
@command{tar} if you have problems.
-@item Perl version 5.6.1 (or later)
+@item Perl version between 5.6.1 and 5.6.24
Necessary when targeting Darwin, building @samp{libstdc++},
and not using @option{--disable-symvers}.
@@ -338,6 +338,8 @@ Necessary when generating manpages from Texinfo ma
Used by various scripts to generate some files included in SVN (mainly
Unicode-related and rarely changing) from source tables.
+Used by @command{automake}.
+
@end table
Several support libraries are necessary to build GCC, some are required,
@@ -420,6 +422,9 @@ the 1.11 series, which is currently 1.11.6. When
to a newer version, please update all the directories using an older 1.11
to the latest released version.
+Note that @command{automake} 1.11.6 is incompatible with
+@command{perl} version 5.6.26.
+
@item gettext version 0.14.5 (or later)
Needed to regenerate @file{gcc.pot}.
Hello world, while PR 82856 remains unsolved so far, this documentation patch at least points people into the right direction if --enable-maintainer-mode fails due to the incompatibility of the latest Perl version with the required automkake version. Tested with "make dvi" and "make pdf". OK for trunk? 2017-11-09 Thomas Koenig <tkoenig@gcc.gnu.org> PR bootstrap/82856 doc/install.texi: Document incompatibility of Perl >=5.6.26 with the required version of automake 1.11.6.