conan built C++ program suddenly not linking
Solution 1:
turned out.. by default conan doesn't do the new ABI.. so when I built it last, I'd had to set the default behavior.. and you can do this by the following command.. once i did this and rebuilt my ibs-api conan recipe.. and built thrift .. everything worked 100%
conan profile update settings.compiler.libcxx=libstdc++11 <MY_DEFAULT_PROFILE>