Fix GTK3 crash

diff --git a/radiant/mainframe.cpp b/radiant/mainframe.cpp
index 3dbad8f23bb098756fe2b34c21624806bf44fd40..d38525a913c6f100ff908fd84d4210861f454d59 100644 (file)
--- a/radiant/mainframe.cpp
+++ b/radiant/mainframe.cpp
@@ -3096,7 +3096,8 @@ void GlobalGL_sharedContextCreated(){
        globalOutputStream() << "GL_VENDOR: " << reinterpret_cast<const char*>( glGetString( GL_VENDOR ) ) << "\n";
        globalOutputStream() << "GL_RENDERER: " << reinterpret_cast<const char*>( glGetString( GL_RENDERER ) ) << "\n";
        globalOutputStream() << "GL_VERSION: " << reinterpret_cast<const char*>( glGetString( GL_VERSION ) ) << "\n";
-       globalOutputStream() << "GL_EXTENSIONS: " << reinterpret_cast<const char*>( glGetString( GL_EXTENSIONS ) ) << "\n";
+    const auto extensions = reinterpret_cast<const char*>( glGetString(GL_EXTENSIONS ) );
+    globalOutputStream() << "GL_EXTENSIONS: " << (extensions ? extensions : "") << "\n";
 
        QGL_sharedContextCreated( GlobalOpenGL() );