[llvm-bugs] [Bug 52332] New: use pragma comment(lib, "c++abi") to link to ABI library

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Oct 27 17:45:43 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=52332

            Bug ID: 52332
           Summary: use pragma comment(lib, "c++abi") to link to ABI
                    library
           Product: libc++
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: All Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: richard-llvm at metafoo.co.uk
                CC: llvm-bugs at lists.llvm.org, mclow.lists at gmail.com

When building a libc++ static library, if the experimental flag
LIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY is not enabled, the resulting
isn't usable in static links when using Clang in its default configuration on
at least some targets, due to unresolved references to symbols in the ABI
library.

For other libraries on which libc++ has a dependency, `#pragma comment(lib,
"foo")` is used by default these days. Could the same thing be done with the
ABI library?

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