Reduce bloat in the output zip package

Avoid dereferencing symlinks when iterating over libc files. Otherwise,
we end up with two copies of the same file, one with the symlink name
and the actual file.

Files which are directly linked to the executable are listed (in the
ldd output) by their symlink name. Those are fine to dereference
because there's only a single mention of them. The actual (dereferenced)
file is not listed in output from ldd.

packaging/packager

@@ -89,10 +89,6 @@ libc_libs+=$(package_libc_via_dpkg)
 libc_libs+=$(package_libc_via_rpm)
 libc_libs+=$(package_libc_via_pacman)
 
-if [[ $INCLUDE_LIBC == true ]]; then
-    list+=$libc_libs;
-fi
-
 mkdir -p "$PKG_DIR/bin" "$PKG_DIR/lib"
 
 for i in $list
@@ -101,19 +97,26 @@ do
         continue
     fi
 
-    if [[ $INCLUDE_LIBC == false ]]; then
-        matched=$(echo $libc_libs | grep --count $i) || true # prevent the non-zero exit status from terminating the script
-        if [ $matched -gt 0 ]; then
-            continue
-        fi
+    # Do not copy libc files which are directly linked
+    matched=$(echo $libc_libs | grep --count $i) || true # prevent the non-zero exit status from terminating the script
+    if [ $matched -gt 0 ]; then
+        continue
     fi
+
     cp $i $PKG_DIR/lib
     filename=`basename $i`
     if [[ -z "${filename##ld-*}" ]]; then
         PKG_LD=$filename # Use this file as the loader
     fi
 done
 
+if [[ $INCLUDE_LIBC == true ]]; then
+    for i in $libc_libs
+    do
+        cp --no-dereference $i $PKG_DIR/lib
+    done
+fi
+
 bootstrap_script=$(cat <<EOF
 #!/bin/bash
 set -euo pipefail
@@ -140,7 +143,7 @@ fi
 chmod +x "$PKG_DIR/bootstrap"
 # some shenanigans to create the right layout in the zip file without extraneous directories
 pushd "$PKG_DIR" > /dev/null
-zip -r $PKG_BIN_FILENAME.zip *
+zip -yr $PKG_BIN_FILENAME.zip *
 ORIGIN_DIR=$(dirs -l +1)
 mv $PKG_BIN_FILENAME.zip $ORIGIN_DIR
 popd > /dev/null