<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - duplicate symbol error when using llvm-ar and llvm-ranlib to build bash 5"
   href="https://bugs.llvm.org/show_bug.cgi?id=45838">45838</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>duplicate symbol error when using llvm-ar and llvm-ranlib to build bash 5
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>tools
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>MacOS X
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>llvm-ar
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>zapster@zapster.cc
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Building bash 5 on MacOS using llvm-ar and llvm-ranlib fails with "duplicate
symbol" error.
To reproduce the error, get the bash 5 source code (e.g. from here
<a href="http://ftpmirror.gnu.org/bash/bash-5.0.tar.gz">http://ftpmirror.gnu.org/bash/bash-5.0.tar.gz</a>) and build it using llvm-ar
llvm-ranlib:

tar -xf bash-5.0.tar.gz
mkdir bash-5.0/_build
cd bash-5.0/_build
AR=/path/to/llvm_build/bin/llvm-ar RANLIB=/path/to/llvm_build/bin/llvm-ranlib
../configure
make -j

This will result in an error similar to the following:

gcc -L./builtins -L./lib/readline -L./lib/readline -L./lib/glob -L./lib/tilde 
-L./lib/sh  -Wl,-why_load  -g -O2 -Wno-parentheses -Wno-format-security   -o
bash shell.o eval.o y.tab.o general.o make_cmd.o print_cmd.o  dispose_cmd.o
execute_cmd.o variables.o copy_cmd.o error.o expr.o flags.o jobs.o subst.o
hashcmd.o hashlib.o mailcheck.o trap.o input.o unwind_prot.o pathexp.o sig.o
test.o version.o alias.o array.o arrayfunc.o assoc.o braces.o bracecomp.o
bashhist.o bashline.o  list.o stringlib.o locale.o findcmd.o redir.o
pcomplete.o pcomplib.o syntax.o xmalloc.o  -lbuiltins -lglob -lsh -lreadline
-lhistory -ltermcap -ltilde  lib/intl/libintl.a -liconv -liconv  -ldl
duplicate symbol _copy_history_entry in:
    ./lib/readline/libreadline.a(history.o)
    ./lib/readline/libhistory.a(history.o)
duplicate symbol _free_history_entry in:
    ./lib/readline/libreadline.a(history.o)
    ./lib/readline/libhistory.a(history.o)
duplicate symbol _replace_history_entry in:
    ./lib/readline/libreadline.a(history.o)
    ./lib/readline/libhistory.a(history.o)
...
ld: 38 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [bash] Error 1


Mac Os verion:

$ sw_vers
ProductName:    Mac OS X
ProductVersion: 10.14.6
BuildVersion:   18G103


I've tried this with various llvm version (9.0.0, 10.0.0 and master). Also,
when switching one of the tools (llvm-ar or llvm-ranlib) to the system tool the
error is gone. The compiler does not matter (tried gcc 8 and various clang
versions).

This file was originally filed against the GraalVM LLVM Runtime toolchain,
which uses the llvm binutils:
<a href="https://github.com/oracle/graal/issues/2300">https://github.com/oracle/graal/issues/2300</a>



<a href="https://github.com/oracle/graal/issues/2300">https://github.com/oracle/graal/issues/2300</a></pre>
        </div>
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