"warning: section "__const_coal" is deprecated" error after updating Xcode to latest version on Mac OS

Question

My g++ compiler for C++ program was working fine until I updated my Xcode to the latest version and accepted the license agreement. I also tried compiling with clang instead of g++ but got errors. Now I get a long stream of errors. Anyone has an idea what is wrong?

Ivans-MacBook-Pro:CS6771A3-GenericDirectedWeightedGraph ivanteong$ g++ -std=c++14 -Wall -Werror -O2 -o test6 tests/test6.cpp
/var/folders/3d/hqly97ld37b1kd6wx9gjn2tc0000gn/T//ccZfBPvE.s:1:11: warning: section "__textcoal_nt" is deprecated
        .section __TEXT,__textcoal_nt,coalesced,pure_instructions
                 ^      ~~~~~~~~~~~~~
/var/folders/3d/hqly97ld37b1kd6wx9gjn2tc0000gn/T//ccZfBPvE.s:1:11: note: change section name to "__text"
        .section __TEXT,__textcoal_nt,coalesced,pure_instructions
                 ^      ~~~~~~~~~~~~~
/var/folders/3d/hqly97ld37b1kd6wx9gjn2tc0000gn/T//ccZfBPvE.s:211:11: warning: section "__textcoal_nt" is deprecated
        .section __TEXT,__textcoal_nt,coalesced,pure_instructions
                 ^      ~~~~~~~~~~~~~
/var/folders/3d/hqly97ld37b1kd6wx9gjn2tc0000gn/T//ccZfBPvE.s:211:11: note: change section name to "__text"
        .section __TEXT,__textcoal_nt,coalesced,pure_instructions
                 ^      ~~~~~~~~~~~~~
/var/folders/3d/hqly97ld37b1kd6wx9gjn2tc0000gn/T//ccZfBPvE.s:604:11: warning: section "__textcoal_nt" is deprecated
        .section __TEXT,__textcoal_nt,coalesced,pure_instructions
                 ^      ~~~~~~~~~~~~~
/var/folders/3d/hqly97ld37b1kd6wx9gjn2tc0000gn/T//ccZfBPvE.s:604:11: note: change section name to "__text"
        .section __TEXT,__textcoal_nt,coalesced,pure_instructions
                 ^      ~~~~~~~~~~~~~

Answer 1

I was getting the exact same warnings on updating to Xcode v8.0. However, you do not need to uninstall Xcode. Rather, you need to set the path of the active developer directory:

sudo xcode-select -s /Library/Developer/CommandLineTools