Compiling with -fvisibility=hidden.

Reusing macros MAGNUM_EXPORT and friends already used for Windows
builds. For exported classes added MAGNUM_LOCAL to private members which
are not referenced from any inline function. Added explicit
MAGNUM_EXPORT to private members which are referenced. CMake provides
its own macro <target>_EXPORTS, using that instead of
set_target_properties().

src/CMakeLists.txt

@@ -1,4 +1,4 @@
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic -std=c++0x")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic -std=c++0x -fvisibility=hidden")
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CORRADE_INCLUDE_DIR})
 
@@ -33,10 +33,6 @@ set(Magnum_SRCS
 
 add_library(Magnum SHARED ${Magnum_SRCS})
 
-if(WIN32)
-    set_target_properties(Magnum PROPERTIES COMPILE_FLAGS -DMAGNUM_EXPORTING)
-endif()
-
 target_link_libraries(Magnum ${CORRADE_UTILITY_LIBRARY} ${CORRADE_PLUGINMANAGER_LIBRARY} ${OPENGL_gl_LIBRARY} ${GLEW_LIBRARY})
 
 install(TARGETS Magnum DESTINATION ${MAGNUM_LIBRARY_INSTALL_DIR})
@@ -46,9 +42,6 @@ if(BUILD_TESTS)
 
     # Library with graceful assert for testing
     add_library(MagnumTestLib SHARED ${Magnum_SRCS})
-    if(WIN32)
-        set_target_properties(MagnumTestLib PROPERTIES COMPILE_FLAGS -DMAGNUM_EXPORTING)
-    endif()
     set_target_properties(MagnumTestLib PROPERTIES COMPILE_FLAGS -DCORRADE_GRACEFUL_ASSERT)
     target_link_libraries(MagnumTestLib ${CORRADE_UTILITY_LIBRARY} ${CORRADE_PLUGINMANAGER_LIBRARY} ${OPENGL_gl_LIBRARY} ${GLEW_LIBRARY})
 

src/Camera.h

@@ -180,7 +180,7 @@ class MAGNUM_EXPORT Camera: public Object {
         Math::Vector2<GLsizei> _viewport;
         AspectRatioPolicy _aspectRatioPolicy;
 
-        void fixAspectRatio();
+        MAGNUM_LOCAL void fixAspectRatio();
 };
 
 }

src/IndexedMesh.h

@@ -77,7 +77,7 @@ class MAGNUM_EXPORT IndexedMesh: public Mesh {
         void draw();
 
     protected:
-        void finalize();
+        MAGNUM_LOCAL void finalize();
 
     private:
         Buffer _indexBuffer;

src/Light.h

@@ -48,7 +48,7 @@ class MAGNUM_EXPORT Light: public Object {
         /**
          * Recomputes light position.
          */
-        void clean(const Matrix4& absoluteTransformation);
+        MAGNUM_LOCAL void clean(const Matrix4& absoluteTransformation);
 
     private:
         Vector4 _position;

src/Math/Math.h

@@ -17,7 +17,7 @@
 
 #include <cstddef>
 
-#include "utilities.h"
+#include "Visibility.h"
 
 /** @file
  * @brief Math constants and utilities

src/Mesh.h

@@ -274,11 +274,11 @@ class MAGNUM_EXPORT Mesh {
          * Computes location and stride of each attribute in its buffer. After
          * this function is called, no new attribute can be bound.
          */
-        void finalize();
+        MAGNUM_LOCAL void finalize();
 
     private:
         /** @brief Vertex attribute */
-        struct Attribute {
+        struct MAGNUM_LOCAL Attribute {
             GLuint attribute;           /**< @brief %Attribute ID */
             GLint size;                 /**< @brief How many items of `type` are in the attribute */
             Type type;                  /**< @brief %Attribute item type */
@@ -307,7 +307,7 @@ class MAGNUM_EXPORT Mesh {
          */
         std::set<GLuint> _attributes;
 
-        void bindAttribute(Buffer* buffer, GLuint attribute, GLint size, Type type);
+        MAGNUM_EXPORT void bindAttribute(Buffer* buffer, GLuint attribute, GLint size, Type type);
 };
 
 }

src/MeshTools/CMakeLists.txt

@@ -6,10 +6,6 @@ set(MagnumMeshTools_SRCS
 
 add_library(MagnumMeshTools SHARED ${MagnumMeshTools_SRCS})
 
-if(WIN32)
-    set_target_properties(MagnumMeshTools PROPERTIES COMPILE_FLAGS -DMESHTOOLS_EXPORTING)
-endif()
-
 target_link_libraries(MagnumMeshTools Magnum)
 
 install(TARGETS MagnumMeshTools DESTINATION ${MAGNUM_LIBRARY_INSTALL_DIR})

src/MeshTools/FlipNormals.h

@@ -20,6 +20,7 @@
  */
 
 #include "Magnum.h"
+#include "MeshToolsVisibility.h"
 
 namespace Magnum { namespace MeshTools {
 

src/MeshTools/GenerateFlatNormals.h

@@ -22,6 +22,7 @@
 #include <tuple>
 
 #include "Magnum.h"
+#include "MeshToolsVisibility.h"
 
 namespace Magnum { namespace MeshTools {
 
@@ -47,7 +48,7 @@ use the same indices.
 @attention Index count must be divisible by 3, otherwise zero length result
     is generated.
 */
-std::tuple<std::vector<unsigned int>, std::vector<Vector3>> generateFlatNormals(const std::vector<unsigned int>& indices, const std::vector<Vector4>& vertices);
+std::tuple<std::vector<unsigned int>, std::vector<Vector3>> MESHTOOLS_EXPORT generateFlatNormals(const std::vector<unsigned int>& indices, const std::vector<Vector4>& vertices);
 
 }}
 

src/MeshTools/MeshToolsVisibility.h

@@ -0,0 +1,28 @@
+#ifndef Magnum_MeshTools_MeshToolsVisibility_h
+#define Magnum_MeshTools_MeshToolsVisibility_h
+/*
+    Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+#ifdef _WIN32
+    #ifdef MagnumMeshTools_EXPORTS
+        #define MESHTOOLS_EXPORT __declspec(dllexport)
+    #else
+        #define MESHTOOLS_EXPORT __declspec(dllimport)
+    #endif
+#else
+    #define MESHTOOLS_EXPORT __attribute__ ((visibility ("default")))
+#endif
+
+#endif

src/MeshTools/Tipsify.h

@@ -22,7 +22,7 @@
 #include <cstddef>
 #include <vector>
 
-#include "utilities.h"
+#include "MeshToolsVisibility.h"
 
 namespace Magnum { namespace MeshTools {
 

src/Physics/AbstractShape.h

@@ -20,6 +20,7 @@
  */
 
 #include "Magnum.h"
+#include "PhysicsVisibility.h"
 
 namespace Magnum { namespace Physics {
 

src/Physics/CMakeLists.txt

@@ -10,10 +10,6 @@ set(MagnumPhysics_SRCS
 
 add_library(MagnumPhysics SHARED ${MagnumPhysics_SRCS})
 
-if(WIN32)
-    set_target_properties(MagnumPhysics PROPERTIES COMPILE_FLAGS -DPHYSICS_EXPORTING)
-endif()
-
 target_link_libraries(MagnumPhysics Magnum)
 
 install(TARGETS MagnumPhysics DESTINATION ${MAGNUM_LIBRARY_INSTALL_DIR})

src/Physics/PhysicsVisibility.h

@@ -0,0 +1,28 @@
+#ifndef Magnum_Physics_PhysicsVisibility_h
+#define Magnum_Physics_PhysicsVisibility_h
+/*
+    Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+#ifdef _WIN32
+    #ifdef MagnumPhysics_EXPORTS
+        #define PHYSICS_EXPORT __declspec(dllexport)
+    #else
+        #define PHYSICS_EXPORT __declspec(dllimport)
+    #endif
+#else
+    #define PHYSICS_EXPORT __attribute__ ((visibility ("default")))
+#endif
+
+#endif

src/Shaders/PhongShader.h

@@ -20,6 +20,7 @@
  */
 
 #include "AbstractShaderProgram.h"
+#include "ShadersVisibility.h"
 
 namespace Magnum { namespace Shaders {
 
@@ -29,7 +30,7 @@ namespace Magnum { namespace Shaders {
 @requires_gl33 The shader is written in GLSL 3.3, although it should be trivial
     to port it to older versions.
 */
-class PhongShader: public AbstractShaderProgram {
+class SHADERS_EXPORT PhongShader: public AbstractShaderProgram {
     public:
         typedef Attribute<0, Vector4> Vertex;   /**< @brief Vertex position */
         typedef Attribute<1, Vector3> Normal;   /**< @brief Normal direction */

src/Shaders/ShadersVisibility.h

@@ -0,0 +1,28 @@
+#ifndef Magnum_Shaders_ShadersVisibility_h
+#define Magnum_Shaders_ShadersVisibility_h
+/*
+    Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+#ifdef _WIN32
+    #ifdef MagnumShaders_EXPORTS
+        #define SHADERS_EXPORT __declspec(dllexport)
+    #else
+        #define SHADERS_EXPORT __declspec(dllimport)
+    #endif
+#else
+    #define SHADERS_EXPORT __attribute__ ((visibility ("default")))
+#endif
+
+#endif

src/Trade/AbstractImporter.h

@@ -59,7 +59,7 @@ class MAGNUM_EXPORT AbstractImporter: public Corrade::PluginManager::Plugin {
         };
 
         /** @brief Constructor */
-        AbstractImporter(Corrade::PluginManager::AbstractPluginManager* manager = nullptr, const std::string& plugin = ""): Plugin(manager, plugin) {}
+        inline AbstractImporter(Corrade::PluginManager::AbstractPluginManager* manager = nullptr, const std::string& plugin = ""): Plugin(manager, plugin) {}
 
         /**
          * @brief Features supported by this importer

src/Visibility.h

@@ -0,0 +1,30 @@
+#ifndef Magnum_Visibility_h
+#define Magnum_Visibility_h
+/*
+    Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+#ifdef _WIN32
+    #ifdef Magnum_EXPORTS
+        #define MAGNUM_EXPORT __declspec(dllexport)
+    #else
+        #define MAGNUM_EXPORT __declspec(dllimport)
+    #endif
+    #define MAGNUM_LOCAL
+#else
+    #define MAGNUM_EXPORT __attribute__ ((visibility ("default")))
+    #define MAGNUM_LOCAL __attribute__ ((visibility ("hidden")))
+#endif
+
+#endif

src/utilities.h

@@ -1,48 +0,0 @@
-#ifndef Magnum_utilities_h
-#define Magnum_utilities_h
-/*
-    Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
-
-    This file is part of Magnum.
-
-    Magnum is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Lesser General Public License version 3
-    only, as published by the Free Software Foundation.
-
-    Magnum is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU Lesser General Public License version 3 for more details.
-*/
-
-/** @file
- * @brief Various utilities and macros
- */
-
-namespace Magnum {
-
-#ifdef _WIN32
-#ifdef MAGNUM_EXPORTING
-    #define MAGNUM_EXPORT __declspec(dllexport)
-#else
-    #define MAGNUM_EXPORT __declspec(dllimport)
-#endif
-#ifdef MESHTOOLS_EXPORTING
-    #define MESHTOOLS_EXPORT __declspec(dllexport)
-#else
-    #define MESHTOOLS_EXPORT __declspec(dllimport)
-#endif
-#ifdef PHYSICS_EXPORTING
-    #define PHYSICS_EXPORT __declspec(dllexport)
-#else
-    #define PHYSICS_EXPORT __declspec(dllimport)
-#endif
-#else
-    #define MAGNUM_EXPORT
-    #define MESHTOOLS_EXPORT
-    #define PHYSICS_EXPORT
-#endif
-
-}
-
-#endif