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nix-shell: Fix uninitialized value warning

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This commit is contained in:
Eelco Dolstra 2015-05-05 14:19:58 +02:00
parent 1f795f9f44
commit deb8668a0e
1 changed files with 1 additions and 1 deletions
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2
scripts/nix-build.in
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@ -44,7 +44,7 @@ $SIG{'INT'} = sub { exit 1 };
# Heuristic to see if we're invoked as a shebang script, namely, if we
# have a single argument, it's the name of an executable file, and it
# starts with "#!".
if ($runEnv && $ARGV[0] !~ /nix-shell/) {
if ($runEnv && defined $ARGV[0] && $ARGV[0] !~ /nix-shell/) {
$script = $ARGV[0];
if (-f $script && -x $script) {
open SCRIPT, "<$script" or die "$0: cannot open ‘$script’: $!\n";