From 7a4cefaee21346d632f400f3e37999642a4a5f7e Mon Sep 17 00:00:00 2001
From: Johannes 'josch' Schauer <josch@mister-muffin.de>
Date: Sat, 5 Oct 2019 07:48:40 +0200
Subject: [PATCH] only append to QEMU_LD_PREFIX if it's already set

---
 mmdebstrap | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mmdebstrap b/mmdebstrap
index 0ec5755..80a98be 100755
--- a/mmdebstrap
+++ b/mmdebstrap
@@ -1528,7 +1528,12 @@ sub setup {
 		} elsif ($options->{mode} eq 'fakechroot') {
 		    # The binfmt support on the outside is used, so qemu needs to know
 		    # where it has to look for shared libraries
-		    $ENV{QEMU_LD_PREFIX} = $options->{root};
+		    if (defined $ENV{QEMU_LD_PREFIX}
+			&& $ENV{QEMU_LD_PREFIX} ne "") {
+			$ENV{QEMU_LD_PREFIX} = "$ENV{QEMU_LD_PREFIX}:$options->{root}";
+		    } else {
+			$ENV{QEMU_LD_PREFIX} = $options->{root};
+		    }
 		    # Make sure that the fakeroot and fakechroot shared libraries
 		    # exist for the right architecture
 		    open my $fh, '-|', 'dpkg-architecture', '-a', $options->{nativearch}, '-qDEB_HOST_MULTIARCH' // error "failed to fork(): $!";