Dropped GCC 4.7 support.

Interesting that many of the annoyances still apply to 4.8.

doc/building.dox

@@ -268,8 +268,8 @@ There are also Homebrew packages for @ref building-plugins-packages-brew "Magnum
 Minimal set of tools and libraries required for building is:
 
 -   C++ compiler with good C++11 support. Compilers which are tested to have
-    everything needed are **GCC** >= 4.7, **Clang** >= 3.1 and **MSVC** >= 2015.
-    On Windows you can also use **MinGW-w64**.
+    everything needed are **GCC** >= 4.8.1, **Clang** >= 3.1 and **MSVC**
+    >= 2015. On Windows you can also use **MinGW-w64**.
 -   **CMake** >= 2.8.12
 -   **Corrade** --- Plugin management and utility library. See
     @ref building-corrade "Corrade download and installation guide" for more

doc/changelog.dox

@@ -38,6 +38,11 @@ See also:
 
 @section changelog-latest Changes since 2018.10
 
+@subsection changelog-latest-dependencies Dependency changes
+
+-   Minimal supported GCC version is now 4.8.1, GCC 4.7 is not supported
+    anymore.
+
 @subsection changelog-latest-new New features
 
 @subsubsection changelog-latest-new-animation Animation library

package/archlinux/PKGBUILD-gcc47

@@ -1,74 +0,0 @@
-# Author: mosra <mosra@centrum.cz>
-pkgname=magnum
-pkgver=dev.gcc47
-pkgrel=1
-pkgdesc="C++11/C++14 graphics middleware for games and data visualization (built with GCC 4.7)"
-arch=('i686' 'x86_64')
-url="https://magnum.graphics"
-license=('MIT')
-depends=('corrade' 'openal' 'freeglut' 'sdl2' 'glfw')
-makedepends=('cmake' 'ninja' 'gcc47')
-options=('!strip')
-provides=('magnum-git')
-
-_rootdir=$startdir/../../
-
-build() {
-    # Disable flags unknown to GCC 4.7
-    newcxxflags=$(echo $CXXFLAGS | sed s/-fstack-protector-strong.//g)
-    export CXXFLAGS="$newcxxflags"
-
-    if [ ! -d "$_rootdir/build-gcc47" ] ; then
-        mkdir "$_rootdir/build-gcc47"
-        cd "$_rootdir/build-gcc47"
-
-        cmake .. \
-            -DCMAKE_CXX_COMPILER=g++-4.7 \
-            -G Ninja
-    fi
-
-    cd "$_rootdir/build-gcc47"
-
-    cmake .. \
-        -DCMAKE_BUILD_TYPE=Debug \
-        -DCMAKE_INSTALL_PREFIX=/usr \
-        -DWITH_AUDIO=ON \
-        -DWITH_SHAPES=ON \
-        -DWITH_GLFWAPPLICATION=ON \
-        -DWITH_GLUTAPPLICATION=ON \
-        -DWITH_GLXAPPLICATION=ON \
-        -DWITH_SDL2APPLICATION=ON \
-        -DWITH_XEGLAPPLICATION=ON \
-        -DWITH_WINDOWLESSGLXAPPLICATION=ON \
-        -DWITH_EGLCONTEXT=ON \
-        -DWITH_GLXCONTEXT=ON \
-        -DWITH_OPENGLTESTER=ON \
-        -DWITH_ANYAUDIOIMPORTER=ON \
-        -DWITH_ANYIMAGECONVERTER=ON \
-        -DWITH_ANYIMAGEIMPORTER=ON \
-        -DWITH_ANYSCENEIMPORTER=ON \
-        -DWITH_MAGNUMFONT=ON \
-        -DWITH_MAGNUMFONTCONVERTER=ON \
-        -DWITH_OBJIMPORTER=ON \
-        -DWITH_TGAIMAGECONVERTER=ON \
-        -DWITH_TGAIMPORTER=ON \
-        -DWITH_WAVAUDIOIMPORTER=ON \
-        -DWITH_DISTANCEFIELDCONVERTER=ON \
-        -DWITH_FONTCONVERTER=ON \
-        -DWITH_IMAGECONVERTER=ON \
-        -DWITH_GL_INFO=ON \
-        -DWITH_AL_INFO=ON \
-        -DBUILD_TESTS=ON \
-        -DBUILD_GL_TESTS=ON
-    ninja
-}
-
-check() {
-    cd "$_rootdir/build-gcc47"
-    CORRADE_TEST_COLOR=ON ctest --output-on-failure -j5
-}
-
-package() {
-    cd "$_rootdir/build-gcc47"
-    DESTDIR="$pkgdir/" ninja install
-}

src/Magnum/DebugTools/CompareImage.cpp

@@ -375,10 +375,8 @@ void printPixelDeltas(Debug& out, const std::vector<Float>& delta, const ImageVi
     /* Find first maxCount values above mean threshold and put them into a
        sorted map */
     std::multimap<Float, std::size_t> large;
-    for(std::size_t i = 0; i != delta.size(); ++i) {
-        /* GCC 4.7 std::multimap doesn't have emplace() */
-        if(delta[i] > meanThreshold) large.insert({delta[i], i});
-    }
+    for(std::size_t i = 0; i != delta.size(); ++i)
+        if(delta[i] > meanThreshold) large.emplace(delta[i], i);
 
     CORRADE_INTERNAL_ASSERT(!large.empty());
 

src/Magnum/GL/Context.cpp

@@ -433,7 +433,7 @@ const std::vector<Extension>& Extension::extensions(Version version) {
 
 namespace {
     #ifdef MAGNUM_BUILD_MULTITHREADED
-    #if !defined(CORRADE_GCC47_COMPATIBILITY) && !defined(CORRADE_TARGET_APPLE)
+    #ifndef CORRADE_TARGET_APPLE
     thread_local
     #else
     __thread

src/Magnum/GL/Test/AbstractShaderProgramTest.cpp

@@ -44,11 +44,7 @@ AbstractShaderProgramTest::AbstractShaderProgramTest() {
 void AbstractShaderProgramTest::constructNoCreate() {
     {
         struct Shader: AbstractShaderProgram {
-            #ifndef CORRADE_GCC47_COMPATIBILITY
             using AbstractShaderProgram::AbstractShaderProgram;
-            #else
-            explicit Shader(NoCreateT) noexcept: AbstractShaderProgram{NoCreate} {}
-            #endif
         } shader{NoCreate};
 
         CORRADE_COMPARE(shader.id(), 0);

src/Magnum/Image.h

@@ -334,24 +334,12 @@ template<UnsignedInt dimensions> class Image {
          *
          * @see @ref release()
          */
-        Containers::ArrayView<char> data()
-            #ifndef CORRADE_GCC47_COMPATIBILITY
-            &
-            #endif
-            { return _data; }
-        #ifndef CORRADE_GCC47_COMPATIBILITY
+        Containers::ArrayView<char> data() & { return _data; }
         Containers::ArrayView<char> data() && = delete; /**< @overload */
-        #endif
 
         /** @overload */
-        Containers::ArrayView<const char> data() const
-            #ifndef CORRADE_GCC47_COMPATIBILITY
-            &
-            #endif
-            { return _data; }
-        #ifndef CORRADE_GCC47_COMPATIBILITY
+        Containers::ArrayView<const char> data() const & { return _data; }
         Containers::ArrayView<const char> data() const && = delete; /**< @overload */
-        #endif
 
         /** @overload */
         template<class T = char> T* data() {

src/Magnum/Math/Frustum.h

@@ -116,7 +116,7 @@ template<class T> class Frustum {
 
         /** @brief Frustum planes */
         constexpr Corrade::Containers::StaticArrayView<6, const Vector4<T>> planes() const {
-            /* GCC 4.7 needs explicit construction */
+            /* GCC 4.8 needs explicit construction */
             return Corrade::Containers::StaticArrayView<6, const Vector4<T>>{_data};
         }
 

src/Magnum/Platform/gl-info.cpp

@@ -231,9 +231,6 @@ MagnumInfo::MagnumInfo(const Arguments& arguments): Platform::WindowlessApplicat
     #error no windowless application available on this platform
     #endif
     Debug() << "Compilation flags:";
-    #ifdef CORRADE_GCC47_COMPATIBILITY
-    Debug() << "    CORRADE_GCC47_COMPATIBILITY";
-    #endif
     #ifdef CORRADE_BUILD_DEPRECATED
     Debug() << "    CORRADE_BUILD_DEPRECATED";
     #endif

src/Magnum/SceneGraph/TranslationRotationScalingTransformation2D.h

@@ -224,8 +224,9 @@ template<class T> class BasicTranslationRotationScalingTransformation2D: public
 
         Math::Vector2<T> _translation;
         Math::Complex<T> _rotation;
-        /* Can't {} on GCC 4.7, _scaling(T(1)) fails on the most vexing parse
-           (what the ... eh???) */
+        /* Can't {} on GCC 4.8 because it complains about the constructor being
+           explicit, _scaling(T(1)) fails on the most vexing parse (what the
+           ... eh???) */
         Math::Vector2<T> _scaling = Math::Vector2<T>(T(1));
 };
 

src/Magnum/SceneGraph/TranslationRotationScalingTransformation3D.h

@@ -314,8 +314,9 @@ template<class T> class BasicTranslationRotationScalingTransformation3D: public
 
         Math::Vector3<T> _translation;
         Math::Quaternion<T> _rotation;
-        /* Can't {} on GCC 4.7, _scaling(T(1)) fails on the most vexing parse
-           (what the ... eh???) */
+        /* Can't {} on GCC 4.8 because it complains about the constructor being
+           explicit, _scaling(T(1)) fails on the most vexing parse (what the
+           ... eh???) */
         Math::Vector3<T> _scaling = Math::Vector3<T>(T(1));
 };
 

src/Magnum/Text/Test/AbstractFontConverterTest.cpp

@@ -77,7 +77,7 @@ namespace {
 void AbstractFontConverterTest::convertGlyphs() {
     class GlyphExporter: public AbstractFontConverter {
         public:
-            /* GCC 4.7 apparently can't handle {} here */
+            /* GCC 4.8 apparently can't handle {} here */
             GlyphExporter(std::u32string& characters): _characters(characters) {}
 
         private:

src/Magnum/Trade/AnimationData.h

@@ -328,24 +328,12 @@ class MAGNUM_TRADE_EXPORT AnimationData {
          * Contains data for all tracks contained in this clip.
          * @see @ref release()
          */
-        Containers::ArrayView<char> data()
-            #ifndef CORRADE_GCC47_COMPATIBILITY
-            &
-            #endif
-            { return _data; }
-        #ifndef CORRADE_GCC47_COMPATIBILITY
+        Containers::ArrayView<char> data() & { return _data; }
         Containers::ArrayView<char> data() && = delete; /**< @overload */
-        #endif
 
         /** @overload */
-        Containers::ArrayView<const char> data() const
-            #ifndef CORRADE_GCC47_COMPATIBILITY
-            &
-            #endif
-            { return _data; }
-        #ifndef CORRADE_GCC47_COMPATIBILITY
+        Containers::ArrayView<const char> data() const & { return _data; }
         Containers::ArrayView<const char> data() const && = delete; /**< @overload */
-        #endif
 
         /** @brief Duration */
         Range1D duration() const { return _duration; }

src/Magnum/Trade/ImageData.h

@@ -357,24 +357,12 @@ template<UnsignedInt dimensions> class ImageData {
          *
          * @see @ref release()
          */
-        Containers::ArrayView<char> data()
-            #ifndef CORRADE_GCC47_COMPATIBILITY
-            &
-            #endif
-            { return _data; }
-        #ifndef CORRADE_GCC47_COMPATIBILITY
+        Containers::ArrayView<char> data() & { return _data; }
         Containers::ArrayView<char> data() && = delete; /**< @overload */
-        #endif
 
         /** @overload */
-        Containers::ArrayView<const char> data() const
-            #ifndef CORRADE_GCC47_COMPATIBILITY
-            &
-            #endif
-            { return _data; }
-        #ifndef CORRADE_GCC47_COMPATIBILITY
+        Containers::ArrayView<const char> data() const & { return _data; }
         Containers::ArrayView<const char> data() const && = delete; /**< @overload */
-        #endif
 
         /** @overload */
         template<class T> T* data() {

src/Magnum/Trade/MeshData2D.h

@@ -81,7 +81,7 @@ class MAGNUM_TRADE_EXPORT MeshData2D {
         /** @brief Move constructor */
         MeshData2D(MeshData2D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -96,7 +96,7 @@ class MAGNUM_TRADE_EXPORT MeshData2D {
         /** @brief Move assignment */
         MeshData2D& operator=(MeshData2D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/Magnum/Trade/MeshData3D.h

@@ -82,7 +82,7 @@ class MAGNUM_TRADE_EXPORT MeshData3D {
         /** @brief Move constructor */
         MeshData3D(MeshData3D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -97,7 +97,7 @@ class MAGNUM_TRADE_EXPORT MeshData3D {
         /** @brief Move assignment */
         MeshData3D& operator=(MeshData3D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/Magnum/Trade/MeshObjectData2D.h

@@ -73,7 +73,7 @@ class MAGNUM_TRADE_EXPORT MeshObjectData2D: public ObjectData2D {
         /** @brief Move constructor */
         MeshObjectData2D(MeshObjectData2D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -86,7 +86,7 @@ class MAGNUM_TRADE_EXPORT MeshObjectData2D: public ObjectData2D {
         /** @brief Move assignment */
         MeshObjectData2D& operator=(MeshObjectData2D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/Magnum/Trade/MeshObjectData3D.h

@@ -73,7 +73,7 @@ class MAGNUM_TRADE_EXPORT MeshObjectData3D: public ObjectData3D {
         /** @brief Move constructor */
         MeshObjectData3D(MeshObjectData3D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -86,7 +86,7 @@ class MAGNUM_TRADE_EXPORT MeshObjectData3D: public ObjectData3D {
         /** @brief Move assignment */
         MeshObjectData3D& operator=(MeshObjectData3D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/Magnum/Trade/ObjectData2D.h

@@ -135,7 +135,7 @@ class MAGNUM_TRADE_EXPORT ObjectData2D {
         /** @brief Move constructor */
         ObjectData2D(ObjectData2D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -151,7 +151,7 @@ class MAGNUM_TRADE_EXPORT ObjectData2D {
         /** @brief Move assignment */
         ObjectData2D& operator=(ObjectData2D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/Magnum/Trade/ObjectData3D.h

@@ -136,7 +136,7 @@ class MAGNUM_TRADE_EXPORT ObjectData3D {
         /** @brief Move constructor */
         ObjectData3D(ObjectData3D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -152,7 +152,7 @@ class MAGNUM_TRADE_EXPORT ObjectData3D {
         /** @brief Move assignment */
         ObjectData3D& operator=(ObjectData3D&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/Magnum/Trade/SceneData.h

@@ -58,7 +58,7 @@ class MAGNUM_TRADE_EXPORT SceneData {
         /** @brief Move constructor */
         SceneData(SceneData&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept
@@ -71,7 +71,7 @@ class MAGNUM_TRADE_EXPORT SceneData {
         /** @brief Move assignment */
         SceneData& operator=(SceneData&&)
             /* GCC 4.9.0 (the one from Android NDK) thinks this does not match
-               the implicit signature so it can't be defaulted. Works on 4.7,
+               the implicit signature so it can't be defaulted. Works on 4.8,
                5.0 and everywhere else, so I don't bother. */
             #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ != 409
             noexcept

src/MagnumPlugins/AnyImageImporter/Test/AnyImageImporterTest.cpp

@@ -150,7 +150,7 @@ void AnyImageImporterTest::detect() {
     std::ostringstream out;
     Error redirectError{&out};
     CORRADE_VERIFY(!importer->openFile(Utility::Directory::join(TEST_FILE_DIR, data.filename)));
-    /* Can't use raw string literals in macros on GCC 4.7 */
+    /* Can't use raw string literals in macros on GCC 4.8 */
     #ifndef CORRADE_PLUGINMANAGER_NO_DYNAMIC_PLUGIN_SUPPORT
     CORRADE_COMPARE(out.str(), Utility::formatString(
 "PluginManager::Manager::load(): plugin {0} is not static and was not found in nonexistent\nTrade::AnyImageImporter::{1}(): cannot load {0} plugin\n", data.plugin, data.callback ? "openData" : "openFile"));