http://llvm.org/bugs/show_bug.cgi?id=8192
Summary: Clang differs from GCC in when it exports the typeinfo
name, causing link errors
Product: clang
Version: trunk
Platform: PC
OS/Version: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
It seems Clang differs from GCC in how and when it exports the typeinfo name,
which causes link errors due to duplicate symbols. The following testcase
exhibits the issue:
http://gist.github.com/588176
When built with GCC the foo and bar object files contains the following type
info:
00000000000000e0 s typeinfo for (anonymous namespace)::LocalToTranslationUnit
00000000000000f8 s typeinfo name for (anonymous
namespace)::LocalToTranslationUnit
But for Clang we get:
00000000000001a0 s typeinfo for (anonymous namespace)::LocalToTranslationUnit
00000000000001c0 S typeinfo name for (anonymous
namespace)::LocalToTranslationUnit
The exported typeinfo name causes a duplicate symbol error when linking.
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