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Thank you for the report. >`yum info libstdc++-8.5.0-20.el8.x86_64` says it's part of the baseos repo, and that it is the "GNU Standard C++ Library". But it does not include `libstdc++.so` >When the C++ _compiler_ is installed, it adds its runtime library, with a top-level symlink, in an obscure location specific to its version This is correct. libstdc++.so (as you pointed out later) is a symlink. This is by design in Red Hat based distributions. The actual library will be libstdc++.so.6.0.25 where libstdc++.so.6 is also a symlink. I would take a look at the spec file if you are interested to see how it is laid out. https://git.rockylinux.org/staging/rpms/gcc/-/blob/14def39ce9d154610f7603c1126a6a0f9241645e/SPECS/gcc.spec What you will find is that this is by design in Red Hat based distributions. For our case, libstdc++.so.6 will be a symlink to the actual library, which is libstdc++.so.6.0.25. >But that library is inaccessible to anyone not using g++ It's accessible. It's available in /lib64 as a dynamic library. <mock-chroot> sh-4.4# ldconfig -p | grep libstdc libstdc++.so.6 (libc6,x86-64) => /lib64/libstdc++.so.6 >IMO btw the base system should put `/Lib64` in /etc/ld.so.conf. The linker is looking by default in /usr/lib, which evidently is not where 64-bit libraries are kept, and *not* by default in /lib64, which is where they are. Because the linker is not configured to use a reasonable default, all users of the linker are forced to add a search path Adding /lib64 as an explicit path to /etc/ld.so.conf doesn't quite make sense as it's already in the default search path. In fact, /lib64 ultimately shows up first if you run ld --verbose. <mock-chroot> sh-4.4# ld --verbose | grep SEARCH_DIR SEARCH_DIR("=/usr/x86_64-redhat-linux/lib64"); SEARCH_DIR("=/usr/lib64"); SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib64"); SEARCH_DIR("=/usr/x86_64-redhat-linux/lib"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib"); -- We need more information and context as it pertains to your build environment. The locations set out by glibc, gcc and their accompanying packages (libstdc++ and gcc-c++ in this case) are standard on Red Hat based distributions. Rocky Linux, being a RHEL derivative is one of those. Setting to needinfo. |
- Anonymous
