static string GetLinkArguments(LinkEnvironment LinkEnvironment)
{
string Result = "";
// debugging symbols
if (LinkEnvironment.Config.Target.Configuration < CPPTargetConfiguration.Shipping)
{
Result += " -rdynamic"; // needed for backtrace_symbols()...
}
else
{
Result += " -s"; // Strip binaries in Shipping
}
if (LinkEnvironment.Config.bIsBuildingDLL)
{
Result += " -shared";
}
else
{
// ignore unresolved symbols in shared libs
Result += string.Format(" -Wl,--unresolved-symbols=ignore-in-shared-libs");
}
if (UnrealBuildTool.BuildingRocket())
{
// strip symbols for Rocket in every configuration
Result += " -Wl,-s";
}
// RPATH for third party libs
Result += " -Wl,-rpath=${ORIGIN}";
Result += " -Wl,-rpath-link=${ORIGIN}";
Result += " -Wl,-rpath=${ORIGIN}/../../../Engine/Binaries/Linux";
Result += " -Wl,-rpath=${ORIGIN}/.."; // for modules that are in sub-folders of the main Engine/Binary/Linux folder
// FIXME: really ugly temp solution. Modules need to be able to specify this
Result += " -Wl,-rpath=${ORIGIN}/../../../Engine/Binaries/ThirdParty/ICU/icu4c-53_1/Linux/x86_64-unknown-linux-gnu";
if (CrossCompiling())
{
if (UsingClang())
{
Result += String.Format(" -target {0}", LinkEnvironment.Config.Target.Architecture); // Set target triple
}
string SysRootPath = BaseLinuxPath.TrimEnd(new char[] { '\\', '/' });
Result += String.Format(" \"--sysroot={0}\"", SysRootPath);
}
return(Result);
}
