I\'m under osx 10.8.4 and have installed gdb 7.5.1 with homebrew (motivation get a new gdb with new features such as --with-python etc... )
Long story short when I
This may not be related. You can use lldb on macos instead of gdb. You don't need this hassle to install gdb.
lldb(http://lldb.llvm.org) is already installed by default in High Sierra