gcc wrapper in bash - doesn't work properly

peter:/usr/bin # ls -l gcc*
lrwxrwxrwx 1 root root      9 Oct 10 09:10 gcc -> gcc.wrap2
-rwxr-xr-x 1 root root 345208 Oct 29  2011 gcc-4.6
lrwxrwxrwx 1 root root      7 Jul  8 17:16 gcc.real -> gcc-4.6
-rwxr-xr-x 1 root root    902 Oct  9 22:28 gcc.wrap
-rwxr-xr-x 1 root root  11500 Oct 10 09:12 gcc.wrap2
-rw-r--r-- 1 root root    539 Oct 10 09:12 gcc.wrap2.c
-rwxr-xr-x 1 root root   2018 Oct 29  2011 gccmakedep
peter:/usr/bin # cat gcc.wrap
#!/bin/bash

dir=$(dirname "$0")

real="gcc.real"

IFS=$'\n'
args=()
i=0
removed=0

for arg in "$@"; do
    echo "PM gcc.wrap: arg is \"$arg\""
    if echo "$arg " | grep "\-Werror" >/dev/null; then
        echo "PM gcc.wrap:     found -Werror... removing it"
        arg=$(echo "$arg" | sed -r "s/-Werror//")
        echo "PM gcc.wrap:     arg after removal: $arg"
        removed=1
        if [ "$arg" = "" -o "$arg" = " " ]; then
            echo "PM gcc.wrap:    arg is now blank, so omitting"
            continue
        fi
    fi
    args[$i]="$arg"
    let i++
done

if [ "$removed" = "1" ]; then
    echo "PM gcc.wrap:command is: \"$dir\"/gcc.real ${args[@]} && exit 0 || exit 1"
    "$dir"/"$real" "${args[@]}" && exit 0 || exit 1
else
    # for cases when nothing is changed, just run the thing normally (so buggy side effects are gone)
    "$dir"/"$real" "$@" && exit 0 || exit 1
fi