diff --git a/src/Magnum/Shaders/DistanceFieldVector.h b/src/Magnum/Shaders/DistanceFieldVector.h
index a124fbce5..e6c72adc9 100644
--- a/src/Magnum/Shaders/DistanceFieldVector.h
+++ b/src/Magnum/Shaders/DistanceFieldVector.h
@@ -55,18 +55,7 @@ be shared among multiple draw calls and thus are provided in a separate
 */
 struct DistanceFieldVectorDrawUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit DistanceFieldVectorDrawUniform(DefaultInitT = DefaultInit) noexcept:
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{}, /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        materialId{0}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        #ifndef CORRADE_TARGET_BIG_ENDIAN
-        , _pad0{}
-        #endif
-        , _pad1{}, _pad2{}, _pad3{}
-        #endif
-        {}
+    constexpr explicit DistanceFieldVectorDrawUniform(DefaultInitT = DefaultInit) noexcept: materialId{0} {}
 
     /** @brief Construct without initializing the contents */
     explicit DistanceFieldVectorDrawUniform(NoInitT) noexcept {}
@@ -113,39 +102,19 @@ struct DistanceFieldVectorDrawUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     #endif
     #else
-    alignas(4) UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    alignas(4) UnsignedShort:16; /* reserved for skinOffset */
     UnsignedShort materialId;
     #endif
 
     /* warning: Member __pad1__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for objectId */
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad3 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32; /* reserved for objectId */
+    Int:32;
+    Int:32;
     #endif
 };
 
@@ -159,16 +128,7 @@ Describes material properties referenced from
 */
 struct DistanceFieldVectorMaterialUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit DistanceFieldVectorMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f},
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        /* Otherwise it refuses to constexpr, on 3.8 at least */
-        _pad0{}, _pad1{}, _pad2{}, _pad3{},
-        #endif
-        outlineColor{0.0f, 0.0f, 0.0f, 0.0f}, outlineStart{0.5f}, outlineEnd{1.0f}, smoothness{0.04f}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad4{}
-        #endif
-        {}
+    constexpr explicit DistanceFieldVectorMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, outlineColor{0.0f, 0.0f, 0.0f, 0.0f}, outlineStart{0.5f}, outlineEnd{1.0f}, smoothness{0.04f} {}
 
     /** @brief Construct without initializing the contents */
     explicit DistanceFieldVectorMaterialUniform(NoInitT) noexcept: color{NoInit}, outlineColor{NoInit} {}
@@ -234,26 +194,10 @@ struct DistanceFieldVectorMaterialUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for backgroundColor */
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad3 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32; /* reserved for backgroundColor */
+    Int:32;
+    Int:32;
+    Int:32;
     #endif
 
     /**
@@ -298,11 +242,7 @@ struct DistanceFieldVectorMaterialUniform {
     /* warning: Member __pad4__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad4 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
     #endif
 };
 
diff --git a/src/Magnum/Shaders/Flat.h b/src/Magnum/Shaders/Flat.h
index 40bfa9840..b2a4e6bef 100644
--- a/src/Magnum/Shaders/Flat.h
+++ b/src/Magnum/Shaders/Flat.h
@@ -54,19 +54,7 @@ be shared among multiple draw calls and thus are provided in a separate
 */
 struct FlatDrawUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit FlatDrawUniform(DefaultInitT = DefaultInit) noexcept:
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{}, /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        materialId{0},
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8) && !defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{},
-        #endif
-        objectId{0}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad1{}, _pad2{}
-        #endif
-        {}
+    constexpr explicit FlatDrawUniform(DefaultInitT = DefaultInit) noexcept: materialId{0}, objectId{0} {}
 
     /** @brief Construct without initializing the contents */
     explicit FlatDrawUniform(NoInitT) noexcept {}
@@ -121,18 +109,10 @@ struct FlatDrawUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     #endif
     #else
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     UnsignedShort materialId;
     #endif
 
@@ -154,16 +134,8 @@ struct FlatDrawUniform {
     /* warning: Member __pad1__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
+    Int:32;
     #endif
 };
 
@@ -177,11 +149,7 @@ Describes material properties referenced from
 */
 struct FlatMaterialUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit FlatMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, alphaMask{0.5f}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad0{}, _pad1{}, _pad2{}
-        #endif
-        {}
+    constexpr explicit FlatMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, alphaMask{0.5f} {}
 
     /** @brief Construct without initializing the contents */
     explicit FlatMaterialUniform(NoInitT) noexcept: color{NoInit} {}
@@ -243,21 +211,9 @@ struct FlatMaterialUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
+    Int:32;
+    Int:32;
     #endif
 };
 
diff --git a/src/Magnum/Shaders/Generic.h b/src/Magnum/Shaders/Generic.h
index 032cef871..bc3fc83b0 100644
--- a/src/Magnum/Shaders/Generic.h
+++ b/src/Magnum/Shaders/Generic.h
@@ -374,11 +374,7 @@ Used only if @ref DistanceFieldVectorGL::Flag::TextureTransformation,
 */
 struct TextureTransformationUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit TextureTransformationUniform(DefaultInitT = DefaultInit) noexcept: rotationScaling{Math::IdentityInit}, offset{0.0f, 0.0f}, layer{0}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad0{} /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        {}
+    constexpr explicit TextureTransformationUniform(DefaultInitT = DefaultInit) noexcept: rotationScaling{Math::IdentityInit}, offset{0.0f, 0.0f}, layer{0} {}
     /** @brief Construct without initializing the contents */
     explicit TextureTransformationUniform(NoInitT) noexcept: rotationScaling{NoInit}, offset{NoInit} {}
 
@@ -476,11 +472,7 @@ struct TextureTransformationUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for coordinateSet */
+    Int:32; /* reserved for coordinateSet */
     #endif
 };
 
diff --git a/src/Magnum/Shaders/MeshVisualizer.h b/src/Magnum/Shaders/MeshVisualizer.h
index 9dde64148..3841717b0 100644
--- a/src/Magnum/Shaders/MeshVisualizer.h
+++ b/src/Magnum/Shaders/MeshVisualizer.h
@@ -54,19 +54,7 @@ separate @ref MeshVisualizerMaterialUniform structure, referenced by
 */
 struct MeshVisualizerDrawUniform2D {
     /** @brief Construct with default parameters */
-    constexpr explicit MeshVisualizerDrawUniform2D(DefaultInitT = DefaultInit) noexcept:
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{}, /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        materialId{0}
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && !defined(CORRADE_TARGET_BIG_ENDIAN)
-        , _pad0{}
-        #endif
-        , objectId{0}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad1{}, _pad2{}
-        #endif
-        {}
+    constexpr explicit MeshVisualizerDrawUniform2D(DefaultInitT = DefaultInit) noexcept: materialId{0}, objectId{0} {}
 
     /** @brief Construct without initializing the contents */
     explicit MeshVisualizerDrawUniform2D(NoInitT) noexcept {}
@@ -122,18 +110,10 @@ struct MeshVisualizerDrawUniform2D {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     #endif
     #else
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     UnsignedShort materialId;
     #endif
 
@@ -155,16 +135,8 @@ struct MeshVisualizerDrawUniform2D {
     /* warning: Member __pad1__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
+    Int:32;
     #endif
 };
 
@@ -180,19 +152,7 @@ shared among multiple draw calls and thus are provided in a separate
 */
 struct MeshVisualizerDrawUniform3D {
     /** @brief Construct with default parameters */
-    constexpr explicit MeshVisualizerDrawUniform3D(DefaultInitT = DefaultInit) noexcept: normalMatrix{Math::IdentityInit}
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && defined(CORRADE_TARGET_BIG_ENDIAN)
-        , _pad0{} /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        , materialId{0}
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && !defined(CORRADE_TARGET_BIG_ENDIAN)
-        , _pad0{}
-        #endif
-        , objectId{0}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad1{}, _pad2{}
-        #endif
-        {}
+    constexpr explicit MeshVisualizerDrawUniform3D(DefaultInitT = DefaultInit) noexcept: normalMatrix{Math::IdentityInit}, materialId{0}, objectId{0} {}
 
     /** @brief Construct without initializing the contents */
     explicit MeshVisualizerDrawUniform3D(NoInitT) noexcept: normalMatrix{NoInit} {}
@@ -267,18 +227,10 @@ struct MeshVisualizerDrawUniform3D {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     #endif
     #else
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     UnsignedShort materialId;
     #endif
 
@@ -300,16 +252,8 @@ struct MeshVisualizerDrawUniform3D {
     /* warning: Member __pad1__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
+    Int:32;
     #endif
 };
 
@@ -323,12 +267,7 @@ Describes material properties referenced from
 */
 struct MeshVisualizerMaterialUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit MeshVisualizerMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, wireframeColor{0.0f, 0.0f, 0.0f, 1.0f}, wireframeWidth{1.0f}, colorMapOffset{1.0f/512.0f}, colorMapScale{1.0f/256.0f}, lineWidth{1.0f}, lineLength{1.0f}, smoothness{2.0f}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        /* Otherwise it refuses to constexpr, on 3.8 at least */
-        , _pad0{}, _pad1{}
-        #endif
-        {}
+    constexpr explicit MeshVisualizerMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, wireframeColor{0.0f, 0.0f, 0.0f, 1.0f}, wireframeWidth{1.0f}, colorMapOffset{1.0f/512.0f}, colorMapScale{1.0f/256.0f}, lineWidth{1.0f}, lineLength{1.0f}, smoothness{2.0f} {}
 
     /** @brief Construct without initializing the contents */
     explicit MeshVisualizerMaterialUniform(NoInitT) noexcept: color{NoInit}, wireframeColor{NoInit} {}
@@ -540,16 +479,8 @@ struct MeshVisualizerMaterialUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
+    Int:32;
     #endif
 };
 
diff --git a/src/Magnum/Shaders/Phong.h b/src/Magnum/Shaders/Phong.h
index 656ecdeb0..7f55eda3f 100644
--- a/src/Magnum/Shaders/Phong.h
+++ b/src/Magnum/Shaders/Phong.h
@@ -55,15 +55,7 @@ separate @ref PhongMaterialUniform structure, referenced by @ref materialId.
 */
 struct PhongDrawUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit PhongDrawUniform(DefaultInitT = DefaultInit) noexcept: normalMatrix{Math::IdentityInit},
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{}, /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        materialId{0},
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8) && !defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{},
-        #endif
-        objectId{0}, lightOffset{0}, lightCount{0xffffffffu} {}
+    constexpr explicit PhongDrawUniform(DefaultInitT = DefaultInit) noexcept: normalMatrix{Math::IdentityInit}, materialId{0}, objectId{0}, lightOffset{0}, lightCount{0xffffffffu} {}
 
     /** @brief Construct without initializing the contents */
     explicit PhongDrawUniform(NoInitT) noexcept: normalMatrix{NoInit} {}
@@ -153,18 +145,10 @@ struct PhongDrawUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     #endif
     #else
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     UnsignedShort materialId;
     #endif
 
@@ -220,11 +204,7 @@ Describes material properties referenced from
 */
 struct PhongMaterialUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit PhongMaterialUniform(DefaultInitT = DefaultInit) noexcept: ambientColor{0.0f, 0.0f, 0.0f, 0.0f}, diffuseColor{1.0f, 1.0f, 1.0f, 1.0f}, specularColor{1.0f, 1.0f, 1.0f, 0.0f}, normalTextureScale{1.0f}, shininess{80.0f}, alphaMask{0.5f}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad0{} /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        {}
+    constexpr explicit PhongMaterialUniform(DefaultInitT = DefaultInit) noexcept: ambientColor{0.0f, 0.0f, 0.0f, 0.0f}, diffuseColor{1.0f, 1.0f, 1.0f, 1.0f}, specularColor{1.0f, 1.0f, 1.0f, 0.0f}, normalTextureScale{1.0f}, shininess{80.0f}, alphaMask{0.5f} {}
 
     /** @brief Construct without initializing the contents */
     explicit PhongMaterialUniform(NoInitT) noexcept: ambientColor{NoInit}, diffuseColor{NoInit}, specularColor{NoInit} {}
@@ -374,11 +354,7 @@ struct PhongMaterialUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32;
     #endif
 };
 
@@ -394,19 +370,7 @@ if @ref PhongGL::Flag::LightCulling is enabled.
 */
 struct PhongLightUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit PhongLightUniform(DefaultInitT = DefaultInit) noexcept: position{0.0f, 0.0f, 1.0f, 0.0f}, color{1.0f, 1.0f, 1.0f},
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0{}, /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        specularColor{1.0f, 1.0f, 1.0f},
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1{},
-        #endif
-        range{Constants::inf()}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        , _pad2{}, _pad3{}, _pad4{}
-        #endif
-        {}
+    constexpr explicit PhongLightUniform(DefaultInitT = DefaultInit) noexcept: position{0.0f, 0.0f, 1.0f, 0.0f}, color{1.0f, 1.0f, 1.0f}, specularColor{1.0f, 1.0f, 1.0f}, range{Constants::inf()} {}
     /** @brief Construct without initializing the contents */
     explicit PhongLightUniform(NoInitT) noexcept: position{NoInit}, color{NoInit}, specularColor{NoInit} {}
 
@@ -483,11 +447,7 @@ struct PhongLightUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for cone inner angle */
+    Int:32; /* reserved for cone inner angle */
     #endif
 
     /**
@@ -503,11 +463,7 @@ struct PhongLightUniform {
     /* warning: Member __pad1__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for cone outer angle */
+    Int:32; /* reserved for cone outer angle */
     #endif
 
     /**
@@ -521,21 +477,9 @@ struct PhongLightUniform {
     /* warning: Member __pad2__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for cone direction */
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad3 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad4 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32; /* reserved for cone direction */
+    Int:32;
+    Int:32;
     #endif
 };
 
diff --git a/src/Magnum/Shaders/Vector.h b/src/Magnum/Shaders/Vector.h
index b5183dd6d..015a74a7f 100644
--- a/src/Magnum/Shaders/Vector.h
+++ b/src/Magnum/Shaders/Vector.h
@@ -54,15 +54,7 @@ be shared among multiple draw calls and thus are provided in a separate
 */
 struct VectorDrawUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit VectorDrawUniform(DefaultInitT = DefaultInit) noexcept:
-        #if ((defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)) && defined(CORRADE_TARGET_BIG_ENDIAN)
-        _pad0{}, /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        materialId{0}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8) && !defined(CORRADE_TARGET_BIG_ENDIAN)
-        , _pad0{}, _pad1{}, _pad2{}, _pad3{}
-        #endif
-        {}
+    constexpr explicit VectorDrawUniform(DefaultInitT = DefaultInit) noexcept: materialId{0} {}
 
     /** @brief Construct without initializing the contents */
     explicit VectorDrawUniform(NoInitT) noexcept {}
@@ -108,39 +100,19 @@ struct VectorDrawUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    UnsignedShort:16; /* reserved for skinOffset */
     #endif
     #else
-    alignas(4) UnsignedShort
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :16; /* reserved for skinOffset */
+    alignas(4) UnsignedShort:16; /* reserved for skinOffset */
     UnsignedShort materialId;
     #endif
 
     /* warning: Member __pad1__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for objectId */
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad3 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32; /* reserved for objectId */
+    Int:32;
+    Int:32;
     #endif
 };
 
@@ -154,12 +126,7 @@ Describes material properties referenced from
 */
 struct VectorMaterialUniform {
     /** @brief Construct with default parameters */
-    constexpr explicit VectorMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, backgroundColor{0.0f, 0.0f, 0.0f, 0.0f}
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        /* Otherwise it refuses to constexpr, on 3.8 at least */
-        , _pad0{}, _pad1{}, _pad2{}, _pad3{}
-        #endif
-        {}
+    constexpr explicit VectorMaterialUniform(DefaultInitT = DefaultInit) noexcept: color{1.0f, 1.0f, 1.0f, 1.0f}, backgroundColor{0.0f, 0.0f, 0.0f, 0.0f} {}
 
     /** @brief Construct without initializing the contents */
     explicit VectorMaterialUniform(NoInitT) noexcept: color{NoInit}, backgroundColor{NoInit} {}
@@ -214,26 +181,10 @@ struct VectorMaterialUniform {
     /* warning: Member __pad0__ is not documented. FFS DOXYGEN WHY DO YOU THINK
        I MADE THOSE UNNAMED, YOU DUMB FOOL */
     #ifndef DOXYGEN_GENERATING_OUTPUT
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad0 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32; /* reserved for alpha mask */
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad1 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad2 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
-    Int
-        #if (defined(CORRADE_TARGET_CLANG) && __clang_major__ < 4) || (defined(CORRADE_TARGET_APPLE_CLANG) && __clang_major__ < 8)
-        _pad3 /* Otherwise it refuses to constexpr, on 3.8 at least */
-        #endif
-        :32;
+    Int:32; /* reserved for alpha mask */
+    Int:32;
+    Int:32;
+    Int:32;
     #endif
 };