Compilation broke when compiling without zlib
**This issue was migrated from [bug 2993](https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2993) in our old bug tracker.** Original bug information: **Reporter:** Roel Hoek\ **Status:** RESOLVED FIXED\ **Product:** Wireshark\ **Component:** TShark\ **OS:** All\ **Platform:** x86\ **Version:** 1.0.4
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