buildEnv: Fix handling of empty list of packages

Changed files
+4 -2
pkgs
build-support
buildenv
+4 -2
pkgs/build-support/buildenv/builder.pl
···
# For each activated package, determine what symlinks to create.
my %symlinks;
-
$symlinks{""} = ["", 0]; # create root directory
-
my %priorities;
sub findFiles;
···
# For each activated package, determine what symlinks to create.
my %symlinks;
+
for my $p (@pathsToLink) {
+
$p = "" if $p eq "/";
+
$symlinks{$p} = ["", 0];
+
}
sub findFiles;