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-rwxr-xr-xMaster/install-tl50
1 files changed, 37 insertions, 13 deletions
diff --git a/Master/install-tl b/Master/install-tl
index e4d2740459e..8b70cfa1bf5 100755
--- a/Master/install-tl
+++ b/Master/install-tl
@@ -1,7 +1,7 @@
#!/usr/bin/env perl
# $Id$
#
-# Copyright 2007-2013
+# Copyright 2007-2014
# Reinhard Kotucha, Norbert Preining, Karl Berry, Siep Kroonenberg.
# This file is licensed under the GNU General Public License version 2
# or any later version.
@@ -234,13 +234,28 @@ if ($opt_gui eq "expert") {
}
if ($opt_help) {
- if (win32()) {
- pod2usage(-exitstatus => 0, -verbose => 2,
- -noperldoc => 1, -output => \*STDOUT);
+ # theoretically we could make a subroutine with all the same
+ # painful checks as we do in tlmgr, but let's not bother until people ask.
+ my @noperldoc = ();
+ if (win32() || $ENV{"NOPERLDOC"}) {
+ @noperldoc = ("-noperldoc", "1");
+ }
+
+ # Tweak less stuff same as tlmgr, though.
+ # less can break control characters and thus the output of pod2usage
+ # is broken. We add/set LESS=-R in the environment and unset
+ # LESSPIPE and LESSOPEN to try to help.
+ #
+ if (defined($ENV{'LESS'})) {
+ $ENV{'LESS'} .= " -R";
} else {
- pod2usage(-exitstatus => 0, -verbose => 2, -file => $0);
+ $ENV{'LESS'} = "-R";
}
- die "sorry, pod2usage failure, maybe download failure?";
+ delete $ENV{'LESSPIPE'};
+ delete $ENV{'LESSOPEN'};
+
+ pod2usage(-exitstatus => 0, -verbose => 2, @noperldoc);
+ die "sorry, pod2usage did not work; maybe a download failure?";
}
if ($opt_version) {
@@ -265,14 +280,14 @@ if ($opt_version) {
exit 0;
}
-die "Options custom-bin and in-place are incompatible."
- if ($opt_in_place and $opt_custom_bin);
+die "$0: Options custom-bin and in-place are incompatible.\n"
+ if ($opt_in_place && $opt_custom_bin);
-die "Options profile and in-place are incompatible."
- if ($opt_in_place and $opt_profile);
+die "$0: Options profile and in-place are incompatible.\n"
+ if ($opt_in_place && $opt_profile);
-die "Options profile-seed and in-place are incompatible."
- if ($opt_in_place and $opt_profileseed);
+die "$0: Options profile-seed and in-place are incompatible.\n"
+ if ($opt_in_place && $opt_profileseed);
if ($#ARGV >= 0) {
# we still have arguments left, should only be gui, otherwise die
@@ -2216,7 +2231,12 @@ runnable, or installation will fail. C<-force-arch> is a synonym.
=item B<-help>, B<--help>, B<-?>
-Display this help and exit.
+Display this help and exit (on the web via
+L<http://tug.org/texlive/doc/install-tl.html>). Sometimes the
+C<perldoc> and/or C<PAGER> programs on the system have problems,
+possibly resulting in control characters being literally output. This
+can't always be detected, but you can set the C<NOPERLDOC> environment
+variable and C<perldoc> will not be used.
=item B<-in-place>
@@ -2361,6 +2381,10 @@ Omit creating the ConTeXt cache. This is useful for redistributors.
Specify the respective directories.
+=item C<NOPERLDOC>
+
+Don't try to run the C<--help> message through C<perldoc>.
+
=back