[LLVMbugs] [Bug 8545] New: X.org 1.7.5 doesn't run, undefined symbols in extensions

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8545

           Summary: X.org 1.7.5 doesn't run, undefined symbols in
                    extensions
           Product: clang
           Version: 2.8
          Platform: Other
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chromium at hybridsource.org
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=5735)
 --> (http://llvm.org/bugs/attachment.cgi?id=5735)
xorg extension errors

I'm able to compile the X.org server with clang 2.8 and svn-r118232 but it
won't run because of undefined symbols in extension modules.  The exact same
source compiles and runs fine with gcc 4.2, I've attached a diff of the two
Xorg.log files showing what happens in failure vs success.  I notice that when
I compile with clang ToT, I get several warnings saying

clang: warning: argument unused during compilation: '-fvisibility=hidden'

but I don't see those same warnings with clang 2.8.  In any case, X.org
compiled with both clang versions fails to run with the same undefined symbol
error.

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