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diff --git a/include/opentype-sanitiser.h b/include/opentype-sanitiser.h
--- a/include/opentype-sanitiser.h
+++ b/include/opentype-sanitiser.h
@@ -1,15 +1,35 @@
// Copyright (c) 2009-2017 The OTS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef OPENTYPE_SANITISER_H_
#define OPENTYPE_SANITISER_H_
+#if defined(_WIN32) || defined(__CYGWIN__)
+ #define OTS_DLL_IMPORT __declspec(dllimport)
+ #define OTS_DLL_EXPORT __declspec(dllexport)
+#else
+ #if __GNUC__ >= 4
+ #define OTS_DLL_IMPORT __attribute__((visibility ("default")))
+ #define OTS_DLL_EXPORT __attribute__((visibility ("default")))
+ #endif
+#endif
+
+#ifdef OTS_DLL
+ #ifdef OTS_DLL_EXPORTS
+ #define OTS_API OTS_DLL_EXPORT
+ #else
+ #define OTS_API OTS_DLL_IMPORT
+ #endif
+#else
+ #define OTS_API
+#endif
+
#if defined(_WIN32)
#include <stdlib.h>
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef short int16_t;
typedef unsigned short uint16_t;
typedef int int32_t;
typedef unsigned int uint32_t;
@@ -172,17 +192,17 @@ class OTSStream {
TABLE_ACTION_DEFAULT, // Use OTS's default action for that table
TABLE_ACTION_SANITIZE, // Sanitize the table, potentially dropping it
TABLE_ACTION_PASSTHRU, // Serialize the table unchanged
TABLE_ACTION_DROP, // Drop the table
TABLE_ACTION_SANITIZE_SOFT, // Sanitize the table, but without failing overall
// sanitzation even if this table fails/is dropped
};
-class OTSContext {
+class OTS_API OTSContext {
public:
OTSContext() {}
virtual ~OTSContext() {}
// Process a given OpenType file and write out a sanitized version
// output: a pointer to an object implementing the OTSStream interface. The
// sanitisied output will be written to this. In the even of a failure,
// partial output may have been written.
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