From: malcolmlewis@cableone.net.invalid   
      
   On Sat, 15 Sep 2018 19:53:22 -0700 (PDT)   
   conrrrod@gmail.com wrote:   
      
   > In Leap 42.3, one can install gcc 5.3 from official repo.   
   > Then one uses gcc-5 or g++-5 in makefiles. Invoking gcc will give you   
   > the default 4.8.5 version. Is each version of g++ looking in the   
   > correct subdirectory to pickup header files? They are in something   
   > like /usr/include/c++/$version   
   > There are also a few libraries in:   
   > /usr/lib/gcc/$distro/$version   
   > There are some guides on the web, but mostly tell you how to compile   
   > another gcc from source, or else use update-alternatives thing for   
   > Debian family.   
   >   
   Hi   
   You can use update-alternatives in openSUSE, but exporting the necessary   
   Makefile flags eg CC=/usr/bin/gcc-5 should suffice to know what to use.   
      
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