[Driver] Allow drivers to add multiple libc++ include paths
This allows toolchain drivers to add multiple libc++ include paths akin
to libstdc++. This is useful in multiarch setup when some headers might
be in target specific include directory. There should be no functional
change.
Differential Revision: https://reviews.llvm.org/D45422
llvm-svn: 329748
diff --git a/clang/lib/Driver/ToolChains/MipsLinux.cpp b/clang/lib/Driver/ToolChains/MipsLinux.cpp
index b394208..2f1c8b2 100644
--- a/clang/lib/Driver/ToolChains/MipsLinux.cpp
+++ b/clang/lib/Driver/ToolChains/MipsLinux.cpp
@@ -94,16 +94,18 @@
return ToolChain::CST_Libcxx;
}
-std::string MipsLLVMToolChain::findLibCxxIncludePath() const {
+void MipsLLVMToolChain::addLibCxxIncludePaths(
+ const llvm::opt::ArgList &DriverArgs,
+ llvm::opt::ArgStringList &CC1Args) const {
if (const auto &Callback = Multilibs.includeDirsCallback()) {
for (std::string Path : Callback(SelectedMultilib)) {
Path = getDriver().getInstalledDir() + Path + "/c++/v1";
if (llvm::sys::fs::exists(Path)) {
- return Path;
+ addSystemInclude(DriverArgs, CC1Args, Path);
+ return;
}
}
}
- return "";
}
void MipsLLVMToolChain::AddCXXStdlibLibArgs(const ArgList &Args,