Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324. The idea is to separate the notion of const from 'this variable can always be replaced with its initializer' in the frontend. To do that, I introduced Declaration::isSameAsInitializer, which is overridden in VarDeclaration to return false for constants that have a struct literal initializer. So {{{ const S s = S(5); void foo() { auto ps = &s; } // is no longer replaced by void foo() { auto ps = &(S(5)); } }}} To make taking the address of a struct constant with a struct-initializer outside of function scope possible, I made sure that AddrExp::optimize doesn't try to run the argument's optimization with WANTinterpret - that'd again replace the constant with a struct literal temporary.

// This configuration file uses libconfig.
// See http://www.hyperrealm.com/libconfig/ for syntax details.

// Special macros:
// %%ldcbinarydir%%
//  - is replaced with the path to the directory holding the ldc executable

// The default group is required
default:
{
    // 'switches' holds array of string that are appends to the command line
    // arguments before they are parsed.
    switches = [
        "-I@RUNTIME_DIR@",
        "-I@RUNTIME_DIR@/lib/common",
        "-L-L%%ldcbinarypath%%/../lib",
        "-d-version=Tango",
        "-defaultlib=@RUNTIME_AIO@",
        "-debuglib=@RUNTIME_AIO@"
    ];
};