diff --git a/src/Magnum/DebugOutput.cpp b/src/Magnum/DebugOutput.cpp
index 26a80a5b0..37d59edf8 100644
--- a/src/Magnum/DebugOutput.cpp
+++ b/src/Magnum/DebugOutput.cpp
@@ -42,7 +42,8 @@ void
 APIENTRY
 #endif
 callbackWrapper(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam) {
-    Context::current()->state().debug->messageCallback(DebugOutput::Source(source), DebugOutput::Type(type), id, DebugOutput::Severity(severity), std::string{message, std::size_t(length)}, userParam);
+    /* GCC 4.5 doesn't like {} here */
+    Context::current()->state().debug->messageCallback(DebugOutput::Source(source), DebugOutput::Type(type), id, DebugOutput::Severity(severity), std::string(message, std::size_t(length)), userParam);
 }
 #endif
 
diff --git a/src/MagnumPlugins/TgaImageConverter/Test/TgaImageConverterTest.cpp b/src/MagnumPlugins/TgaImageConverter/Test/TgaImageConverterTest.cpp
index 60a49e1cf..91457594a 100644
--- a/src/MagnumPlugins/TgaImageConverter/Test/TgaImageConverterTest.cpp
+++ b/src/MagnumPlugins/TgaImageConverter/Test/TgaImageConverterTest.cpp
@@ -107,8 +107,9 @@ void TgaImageConverterTest::data() {
     CORRADE_COMPARE(converted->format(), ColorFormat::RGB);
     #endif
     CORRADE_COMPARE(converted->type(), ColorType::UnsignedByte);
-    CORRADE_COMPARE((std::string{converted->data(), 2*3*3}),
-                    (std::string{original.data(), 2*3*3}));
+    /* GCC 4.5 can't handle {} here */
+    CORRADE_COMPARE(std::string(converted->data(), 2*3*3),
+                    std::string(original.data(), 2*3*3));
 }
 
 }}}
diff --git a/src/MagnumPlugins/TgaImporter/Test/TgaImporterTest.cpp b/src/MagnumPlugins/TgaImporter/Test/TgaImporterTest.cpp
index 4ce72096d..d92c6cc93 100644
--- a/src/MagnumPlugins/TgaImporter/Test/TgaImporterTest.cpp
+++ b/src/MagnumPlugins/TgaImporter/Test/TgaImporterTest.cpp
@@ -152,8 +152,9 @@ void TgaImporterTest::colorBits24() {
     #endif
     CORRADE_COMPARE(image->size(), Vector2i(2, 3));
     CORRADE_COMPARE(image->type(), ColorType::UnsignedByte);
-    CORRADE_COMPARE((std::string{image->data(), 2*3*3}),
-                    (std::string{pixels, 2*3*3}));
+    /* GCC 4.5 can't handle {} here */
+    CORRADE_COMPARE(std::string(image->data(), 2*3*3),
+                    std::string(pixels, 2*3*3));
 }
 
 void TgaImporterTest::colorBits32() {
@@ -184,8 +185,9 @@ void TgaImporterTest::colorBits32() {
     #endif
     CORRADE_COMPARE(image->size(), Vector2i(2, 3));
     CORRADE_COMPARE(image->type(), ColorType::UnsignedByte);
-    CORRADE_COMPARE((std::string{image->data(), 2*3*3}),
-                    (std::string{pixels, 2*3*3}));
+    /* GCC 4.5 can't handle {} here */
+    CORRADE_COMPARE(std::string(image->data(), 2*3*3),
+                    std::string(pixels, 2*3*3));
 }
 
 void TgaImporterTest::grayscaleBits8() {
@@ -207,8 +209,9 @@ void TgaImporterTest::grayscaleBits8() {
     #endif
     CORRADE_COMPARE(image->size(), Vector2i(2, 3));
     CORRADE_COMPARE(image->type(), ColorType::UnsignedByte);
-    CORRADE_COMPARE((std::string{image->data(), 2*3}),
-                    (std::string{data + 18, 2*3}));
+    /* GCC 4.5 can't handle {} here */
+    CORRADE_COMPARE(std::string(image->data(), 2*3),
+                    std::string(data + 18, 2*3));
 }
 
 void TgaImporterTest::grayscaleBits16() {
@@ -241,8 +244,9 @@ void TgaImporterTest::file() {
     #endif
     CORRADE_COMPARE(image->size(), Vector2i(2, 3));
     CORRADE_COMPARE(image->type(), ColorType::UnsignedByte);
-    CORRADE_COMPARE((std::string{image->data(), 2*3}),
-                    (std::string{data + 18, 2*3}));
+    /* GCC 4.5 can't handle {} here */
+    CORRADE_COMPARE(std::string(image->data(), 2*3),
+                    std::string(data + 18, 2*3));
 }
 
 }}}
diff --git a/src/MagnumPlugins/TgaImporter/TgaImporter.cpp b/src/MagnumPlugins/TgaImporter/TgaImporter.cpp
index b96e543af..f5be57fc9 100644
--- a/src/MagnumPlugins/TgaImporter/TgaImporter.cpp
+++ b/src/MagnumPlugins/TgaImporter/TgaImporter.cpp
@@ -70,7 +70,8 @@ auto TgaImporter::doFeatures() const -> Features { return Feature::OpenData; }
 bool TgaImporter::doIsOpened() const { return in; }
 
 void TgaImporter::doOpenData(const Containers::ArrayReference<const char> data) {
-    in = new std::istringstream{{data, data.size()}};
+    /* GCC 4.5 can't handle {} here */
+    in = new std::istringstream{std::string(data, data.size())};
 }
 
 void TgaImporter::doOpenFile(const std::string& filename) {