http://llvm.org/bugs/show_bug.cgi?id=3356
Summary: using llvm-config --libs results in missing symbols
Product: new-bugs
Version: unspecified
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Consider the following example:
echo "int main(void) { return 0; }" > a.cpp
g++ a.cpp `llvm-config --ldflags` `llvm-config --libs`
The expected result is that a.cpp will compile and link properly. However,
instead there are link errors.
It turns out that LLVMCBase.o and LLVMCClang.o which are both output by
`llvm-config --libs` depend on symbols that are not found in any library given
by `llvm-config --libs`.
Some of the undefined symbols are:
"llvmc::CompilationGraph::insertEdge(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, llvmc::Edge*)",
"llvmc::CompilationGraph::insertNode(llvmc::Tool*)",
"_OutputFilename",
"llvmc::Tool::OutFilename(llvm::sys::Path const&, llvm::sys::Path const&,
bool, char const*) const",
Either the output of `llvm-config --libs` should include the missing libraries,
or LLVMCBase.o and LLVMCClang.o should be removed from that output. This would
allow projects using LLVM to link properly based on the output of `llvm-config
--libs`.
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