diff --git a/source/Makefile.mk b/source/Makefile.mk
index 960ccc1fd..889f55682 100644
--- a/source/Makefile.mk
+++ b/source/Makefile.mk
@@ -61,7 +61,7 @@ endif
 # --------------------------------------------------------------
 # Common build and link flags
 
-BASE_FLAGS = -Wall -Wextra -pipe -DREAL_BUILD
+BASE_FLAGS = -Wall -Wextra -pipe -DBUILDING_CARLA -DREAL_BUILD
 BASE_OPTS  = -O2 -ffast-math -mtune=generic -msse -msse2 -fdata-sections -ffunction-sections
 LINK_OPTS  = -fdata-sections -ffunction-sections -Wl,-O1 -Wl,--as-needed -Wl,--gc-sections
 LINK_OPTS += -Wl,--strip-all
diff --git a/source/backend/CarlaHost.h b/source/backend/CarlaHost.h
index 532198e03..f4b4e1d07 100644
--- a/source/backend/CarlaHost.h
+++ b/source/backend/CarlaHost.h
@@ -135,8 +135,8 @@ typedef struct _CarlaPluginInfo {
     /*!
      * C++ constructor and destructor.
      */
-    _CarlaPluginInfo() noexcept;
-    ~_CarlaPluginInfo() noexcept;
+    CARLA_API _CarlaPluginInfo() noexcept;
+    CARLA_API ~_CarlaPluginInfo() noexcept;
     CARLA_DECLARE_NON_COPY_STRUCT(_CarlaPluginInfo)
 #endif
 
@@ -212,7 +212,7 @@ typedef struct _CarlaCachedPluginInfo {
     /*!
      * C++ constructor.
      */
-    _CarlaCachedPluginInfo() noexcept;
+    CARLA_API _CarlaCachedPluginInfo() noexcept;
     CARLA_DECLARE_NON_COPY_STRUCT(_CarlaCachedPluginInfo)
 #endif
 
@@ -267,8 +267,8 @@ typedef struct _CarlaParameterInfo {
     /*!
      * C++ constructor and destructor.
      */
-    _CarlaParameterInfo() noexcept;
-    ~_CarlaParameterInfo() noexcept;
+    CARLA_API _CarlaParameterInfo() noexcept;
+    CARLA_API ~_CarlaParameterInfo() noexcept;
     CARLA_DECLARE_NON_COPY_STRUCT(_CarlaParameterInfo)
 #endif
 
@@ -293,8 +293,8 @@ typedef struct _CarlaScalePointInfo {
     /*!
      * C++ constructor and destructor.
      */
-    _CarlaScalePointInfo() noexcept;
-    ~_CarlaScalePointInfo() noexcept;
+    CARLA_API _CarlaScalePointInfo() noexcept;
+    CARLA_API ~_CarlaScalePointInfo() noexcept;
     CARLA_DECLARE_NON_COPY_STRUCT(_CarlaScalePointInfo)
 #endif
 
@@ -339,7 +339,7 @@ typedef struct _CarlaTransportInfo {
     /*!
      * C++ constructor.
      */
-    _CarlaTransportInfo() noexcept;
+    CARLA_API _CarlaTransportInfo() noexcept;
 #endif
 
 } CarlaTransportInfo;
diff --git a/source/includes/CarlaDefines.h b/source/includes/CarlaDefines.h
index ce0a8dcd4..6e0d5fb38 100644
--- a/source/includes/CarlaDefines.h
+++ b/source/includes/CarlaDefines.h
@@ -220,6 +220,21 @@ private:                                        \
     static void* operator new(std::size_t);
 #endif
 
+/* Define CARLA_API */
+#ifdef BUILD_BRIDGE
+# define CARLA_API
+#else
+# if defined(CARLA_OS_WIN) && ! defined(__WINE__)
+#  ifdef BUILDING_CARLA
+#   define CARLA_API __declspec (dllexport)
+#  else
+#   define CARLA_API __declspec (imexport)
+#  endif
+# else
+#  define CARLA_API __attribute__ ((visibility("default")))
+# endif
+#endif
+
 /* Define CARLA_EXTERN_C */
 #ifdef __cplusplus
 # define CARLA_EXTERN_C extern "C"
@@ -232,9 +247,9 @@ private:                                        \
 # define CARLA_EXPORT CARLA_EXTERN_C
 #else
 # if defined(CARLA_OS_WIN) && ! defined(__WINE__)
-#  define CARLA_EXPORT CARLA_EXTERN_C __declspec (dllexport)
+#  define CARLA_EXPORT CARLA_EXTERN_C CARLA_API
 # else
-#  define CARLA_EXPORT CARLA_EXTERN_C __attribute__ ((visibility("default")))
+#  define CARLA_EXPORT CARLA_EXTERN_C CARLA_API
 # endif
 #endif