Root complication fails with XCode 9 in MacOS 10.12.6

After upgrading to XCode 9, compiling programs with root failed with the an error related to string_view[0]. I then downloaded version 6.10/06 of root and compiled it on my system. The complication failed with a related error:

/Users/nmccoll/Dropbox/Work/programs/root-git/core/metacling/src/TCling.cxx:1064:19: error: call to constructor of 'std::string' (aka
'basic_string<char, char_traits<char>, allocator<char> >') is ambiguous
std::string interpInclude(TROOT::GetEtcDir());
^ ~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:778:31: note: candidate constructor
_LIBCPP_INLINE_VISIBILITY basic_string(const value_type* __s);
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:799:5: note: candidate constructor
basic_string(__self_view __sv);
^
/Users/nmccoll/Dropbox/Work/programs/root-git/core/metacling/src/TCling.cxx:1073:34: error: ambiguous conversion for functional-style cast from 'TString' to 'std::string' (aka
'basic_string<char, char_traits<char>, allocator<char> >')
clingArgsStorage.push_back(std::string("-I" + TROOT::GetIncludeDir()));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:778:31: note: candidate constructor
_LIBCPP_INLINE_VISIBILITY basic_string(const value_type* __s);
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:799:5: note: candidate constructor
basic_string(__self_view __sv);
^

[0]:
In file included from /Users/nmccoll/Dropbox/Work/Programs/root/include/TString.h:28:
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:35:12: error: unknown type name 'basic_string_view'
typedef basic_string_view<char> string_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:35:29: error: expected unqualified-id
typedef basic_string_view<char> string_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:36:12: error: unknown type name 'basic_string_view'
typedef basic_string_view<char16_t> u16string_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:36:29: error: expected unqualified-id
typedef basic_string_view<char16_t> u16string_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:37:12: error: unknown type name 'basic_string_view'
typedef basic_string_view<char32_t> u32string_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:37:29: error: expected unqualified-id
typedef basic_string_view<char32_t> u32string_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:38:12: error: unknown type name 'basic_string_view'
typedef basic_string_view<wchar_t> wstring_view;
^
/Users/nmccoll/Dropbox/Work/Programs/root/include/RStringView.h:38:29: error: expected unqualified-id
typedef basic_string_view<wchar_t> wstring_view;
^
8 errors generated.