add some warning if TEXMFCNF is set

git-svn-id: svn://tug.org/texlive/trunk@7917 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 6 insertions, 0 deletions

diff --git a/Master/install-tl b/Master/install-tl
index be9942ca293..6c7f51993af 100755
--- a/Master/install-tl
+++ b/Master/install-tl
@@ -814,6 +814,12 @@ sub do_postinst_stuff {
   my @TMFVARS1=qw(TEXMFMAIN TEXMFDIST TEXMFLOCAL TEXMFSYSVAR TEXMFSYSCONFIG
     TEXMFHOME TEXMFVAR TEXMFCONFIG);
 
+  if (defined($ENV{'TEXMFCNF'})) {
+    print "WARNING: environment variable TEXMFCNF is set.
+You should know what you are doing.
+We will remove that for the post install actions, but all further
+operations might be disturbed.\n\n";
+  }
   foreach my $tmv (@TMFVARS0) {
     delete $ENV{$tmv} if (defined($ENV{$tmv}));
   }