# #define SEQAN_HAS_ZLIB
Defined as 0 or 1, depending on zlib being available.

Defined in | <seqan/stream.h>
Signature | `#define SEQAN_HAS_ZLIB 0 // or 1`

## Data Races

If not stated otherwise, concurrent invocation is not guaranteed to be thread-safe.

#### Dox Sources

    /*!
     * @macro SEQAN_HAS_ZLIB
     *
     * @headerfile <seqan/stream.h>
     *
     * @brief Defined as 0 or 1, depending on zlib being available.
     *
     * @signature #define SEQAN_HAS_ZLIB 0 // or 1
     */