[LLVMbugs] [Bug 821] NEW: llvm-gcc4 doesn't build: pthread_once not found

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Fri Jul 7 21:03:43 PDT 2006


           Summary: llvm-gcc4 doesn't build: pthread_once not found
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: llvm-gcc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rspencer at x10sys.com

In version 9 of Apple's llvm-gcc public SVN repository, the llvm-gcc tool won't
build. It doesn't build in any of the subsequent versions (through 13) either.
Version 8 builds just fine. The symptom of the problem is:

/proj/llvm/cfe/svnbuild/gcc/xgcc: symbol lookup error:
/proj/llvm/cfe/svnbuild/gcc/libgcc_s.so.1: undefined symbol: pthread_once

I noted that in the changes between r8 and r9, the symbols are being blindly
stripped our of several .o and .a files.  That may be related to the problem. I
will attach the diff for r8 and r9.


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