/usr/bin/ld: skipping incompatible /usr/bin/../lib/gcc/x86_64-linux-gnu/5.3.1/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/bin/../lib/gcc/x86_64-linux-gnu/5.3.1/libstdc++.a when searching for -lstdc++
/usr/bin/ld: cannot find -lstdc++
clang: error: linker command failed with exit code 1 (use -v to see invocation)

cp /usr/lib32/libstdc++.so{.6,}

/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerClangCounters.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerCrossOver.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerDriver.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerExtFunctionsDlsym.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerExtFunctionsDlsymWin.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerExtFunctionsWeak.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerExtFunctionsWeakAlias.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/usr/lib/llvm-6.0/lib/clang/6.0.1/lib/linux/libclang_rt.fuzzer-i386.a(FuzzerExtraCounters.o)' is incompatible with i386 output
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