On 2021-02-10 17:08:51 Simon Lees wrote:
|On 2/11/21 8:38 AM, J Leslie Turriff wrote: |> I ran into an odd error while compiling some source code, and while |> poking around I found |> |> this for my gcc setup: |> | ● zypper se -is gcc |> | Loading repository data... |> | Reading installed packages... |> | |> | S | Name | Type | Version | |> | Arch | |> |> Repository |> |> | ---+---------------------------+---------+---------------------------+ |> |--------+-------------------------- i+ | gcc | |> | package | 7-lp152.4.114 | x86_64 | Main |> |> Repository |> |> | i+ | gcc-c++ | package | 7-lp152.4.114 | |> | x86_64 | Main |> |> Repository |> |> | i+ | gcc-fortran | package | 7-lp152.4.114 | |> | x86_64 | Main |> |> Repository |> |> | i+ | gcc-info | package | 7-lp152.4.114 | |> | x86_64 | Main |> |> Repository |> |> | i+ | gcc10-debugsource | package | 10.2.1+git583-lp152.2.2 | |> | x86_64 | Update |> |> Repository (Debug) |> |> | i+ | gcc7 | package | 7.5.0+r278197-lp152.3.6.1 | |> | x86_64 | |> |> openSUSE:Leap:15.2:Update |> |> Surely it's not a good idea to have such a mixture of levels in use. |> What's a good, stable level to use in my Leap 15.2 system? | |This is actually ok, the packages are designed so that you can have |multiple installed. Its quite common for people to have multiple |versions of gcc installed and use different versions for different | projects. | |How this works in practice is if you run `gcc` you will get gcc 7 which |is the version of gcc that Leap 15.0 was built with and will be the |default compiler for the rest of the Leap 15 series. This version of gcc |is too old for many projects which is why we also ship alternatives. If |you want to build with gcc 10 you configure your builds to use the |gcc-10 binary, if you are compiling by hand you can do this by calling |gcc-10 instead of gcc, for almost any build system if you set the |following environment variables `export CC=/usr/bin/gcc-10` `export |CXX=/usr/bin/gcc-10` it will use that version of gcc instead, you can |use the same method to use clang rather then gcc as well. | |To answer your question unless you know you need specific versions for |specific projects having gcc 7 and gcc10 should cover pretty much |everything (I guess the fact that we still ship others means that |something still needs them). | |Cheers
Okay, thanks. Leslie -- openSUSE Leap 15.2 x86_64