diff --git a/lib/compress/zstdmt_compress.h b/lib/compress/zstdmt_compress.h
index 7d336db06..7e9d07035 100644
--- a/lib/compress/zstdmt_compress.h
+++ b/lib/compress/zstdmt_compress.h
@@ -10,16 +10,16 @@
 /* ===   Dependencies   === */
 #include <stddef.h>   /* size_t */
 #define ZSTD_STATIC_LINKING_ONLY   /* ZSTD_parameters */
-#include "zstd.h"     /* ZSTD_inBuffer, ZSTD_outBuffer */
+#include "zstd.h"     /* ZSTD_inBuffer, ZSTD_outBuffer, ZSTDLIB_API */
 
 
 /* ===   Simple one-pass functions   === */
 
 typedef struct ZSTDMT_CCtx_s ZSTDMT_CCtx;
-ZSTDMT_CCtx* ZSTDMT_createCCtx(unsigned nbThreads);
-size_t ZSTDMT_freeCCtx(ZSTDMT_CCtx* cctx);
+ZSTDLIB_API ZSTDMT_CCtx* ZSTDMT_createCCtx(unsigned nbThreads);
+ZSTDLIB_API size_t ZSTDMT_freeCCtx(ZSTDMT_CCtx* cctx);
 
-size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* cctx,
+ZSTDLIB_API size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* cctx,
                            void* dst, size_t dstCapacity,
                      const void* src, size_t srcSize,
                            int compressionLevel);
@@ -27,12 +27,12 @@ size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* cctx,
 
 /* ===   Streaming functions   === */
 
-size_t ZSTDMT_initCStream(ZSTDMT_CCtx* zcs, int compressionLevel);
-size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* zcs, unsigned long long pledgedSrcSize);   /**< pledgedSrcSize is optional and can be zero == unknown */
-size_t ZSTDMT_initCStream_advanced(ZSTDMT_CCtx* zcs, const void* dict, size_t dictSize,
+ZSTDLIB_API size_t ZSTDMT_initCStream(ZSTDMT_CCtx* zcs, int compressionLevel);
+ZSTDLIB_API size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* zcs, unsigned long long pledgedSrcSize);   /**< pledgedSrcSize is optional and can be zero == unknown */
+ZSTDLIB_API size_t ZSTDMT_initCStream_advanced(ZSTDMT_CCtx* zcs, const void* dict, size_t dictSize,
                                    ZSTD_parameters params, unsigned long long pledgedSrcSize);  /**< pledgedSrcSize is optional and can be zero == unknown ; current limitation : no checksum */
 
-size_t ZSTDMT_compressStream(ZSTDMT_CCtx* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
+ZSTDLIB_API size_t ZSTDMT_compressStream(ZSTDMT_CCtx* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
 
-size_t ZSTDMT_flushStream(ZSTDMT_CCtx* zcs, ZSTD_outBuffer* output);   /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
-size_t ZSTDMT_endStream(ZSTDMT_CCtx* zcs, ZSTD_outBuffer* output);     /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
+ZSTDLIB_API size_t ZSTDMT_flushStream(ZSTDMT_CCtx* zcs, ZSTD_outBuffer* output);   /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
+ZSTDLIB_API size_t ZSTDMT_endStream(ZSTDMT_CCtx* zcs, ZSTD_outBuffer* output);     /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
diff --git a/tests/.gitignore b/tests/.gitignore
index 5041404dd..53520238f 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -6,6 +6,7 @@ fuzzer32
 fuzzer-dll
 zbufftest
 zbufftest32
+zbufftest-dll
 zstreamtest
 zstreamtest32
 zstreamtest-dll