Remove libdwarf headers from logduration install

[Copilot]

kerneldb copies system libdwarf headers into its install include directory so downstream builds can find them — a workaround that bundles a system dependency into the logduration install package.

Changes

• CMakeLists.txt: Adds a post-install step that removes the libdwarf headers kerneldb copies into include/kerneldb/. The find_path(LIBDWARF_INCLUDE_DIR) in src/CMakeLists.txt already handles locating system libdwarf headers at build time, so bundling them is unnecessary.

if(LIBDWARF_INCLUDE_DIR)
  install(CODE "
    file(GLOB _libdwarf_headers \"${LIBDWARF_INCLUDE_DIR}/*.h\")
    foreach(header IN LISTS _libdwarf_headers)
      get_filename_component(header_name \"\${header}\" NAME)
      set(installed_header \"\${CMAKE_INSTALL_PREFIX}/include/kerneldb/\${header_name}\")
      if(EXISTS \"\${installed_header}\")
        file(REMOVE \"\${installed_header}\")
      endif()
    endforeach()
  ")
endif()

The glob path (${LIBDWARF_INCLUDE_DIR}) is baked in at configure time, matching exactly what kerneldb copied and covering distro-specific layouts (e.g. libdwarf-0/ on Ubuntu vs libdwarf/ on RHEL).

Note

The root cause lives in external/kerneldb/src/CMakeLists.txt — the install(DIRECTORY ${LIBDWARF_INCLUDE_DIR}/ ...) block should be removed there in a follow-up PR to the kerneldb repo, at which point this workaround can be dropped.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Remove libdwarf headers from logduration install</issue_title>
<issue_description>I encountered some issues resolving the path to libdwarf headers when using the installed version of logduration, building worked fine. Put this off and copied headers to install, but we should come back and fix this as it's a sloppy fix</issue_description>

Comments on the Issue (you are @copilot in this section)

@rwvo @copilot Check the CMake and build files to see if there's any copying of libdwarf headers going on.

• Fixes Remove libdwarf headers from logduration install #15

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