Index: llvm-toolchain-3.4-3.4~+rc1/clang/lib/Driver/ToolChains.cpp =================================================================== --- llvm-toolchain-3.4-3.4~+rc1.orig/clang/lib/Driver/ToolChains.cpp 2013-11-30 15:03:35.257604848 +0000 +++ llvm-toolchain-3.4-3.4~+rc1/clang/lib/Driver/ToolChains.cpp 2013-11-30 15:04:14.793603425 +0000 @@ -2771,6 +2771,11 @@ StringRef BiarchSuffix = GCCInstallation.getBiarchSuffix(); const GCCVersion &Version = GCCInstallation.getVersion(); +#ifdef __i386__ + // clang does not detect this path: /usr/include/i386-linux-gnu/c++/4.8/ Help him + addLibStdCXXIncludePaths( "/usr/include/", "/c++/" + Version.str(), "i386-linux-gnu", GCCInstallation.getMultiarchSuffix(), DriverArgs, CC1Args); +#endif + if (addLibStdCXXIncludePaths(LibDir.str() + "/../include", "/c++/" + Version.Text, TripleStr, BiarchSuffix, MIPSABIDirSuffix, DriverArgs, CC1Args))