http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55374
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-12-08 17:05:51 UTC --- [hjl@gnu-6 gcc]$ cat /tmp/bad.cc #include <new> int main () { int *buf = new int(30); buf[30]=1; return 0; } [hjl@gnu-6 gcc]$ ./release/usr/gcc-4.8.0/bin/g++ -fsanitize=address /tmp/bad.cc -static-libasan -static-libstdc++ /export/build/gnu/gcc/release/usr/gcc-4.8.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.8.0/../../../../lib64/libasan.a(asan_new_delete.o): In function `operator new(unsigned long)': /export/gnu/import/git/gcc/libsanitizer/asan/asan_new_delete.cc:41: multiple definition of `operator new(unsigned long)' /export/build/gnu/gcc/release/usr/gcc-4.8.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.8.0/../../../../lib64/libstdc++.a(new_op.o):/export/gnu/import/git/gcc/libstdc++-v3/libsupc++/new_op.cc:45: first defined here /export/build/gnu/gcc/release/usr/gcc-4.8.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.8.0/../../../../lib64/libasan.a(asan_new_delete.o): In function `operator delete(void*)': /export/gnu/import/git/gcc/libsanitizer/asan/asan_new_delete.cc:54: multiple definition of `operator delete(void*)' /export/build/gnu/gcc/release/usr/gcc-4.8.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.8.0/../../../../lib64/libstdc++.a(del_op.o):/export/gnu/import/git/gcc/libstdc++-v3/libsupc++/del_op.cc:46: first defined here collect2: error: ld returned 1 exit status [hjl@gnu-6 gcc]$