<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/153668>153668</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            <new> Header cannot be found
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          Sharjeel-Khan
      </td>
    </tr>
</table>

<pre>
    Our Android LLVM ToT buildbot started failing where it cannot find <new> header anymore when building rtsan. I think it is a libcxx issue over being a compiler-rt/rtsan issue.

```
FAILED: compiler-rt/lib/rtsan/CMakeFiles/RTRtsan.x86_64.dir/rtsan_context.cpp.o 
/b/f/w/src/git/out/stage1/./bin/clang++ --target=x86_64-unknown-linux-gnu --sysroot=/b/f/w/src/git/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.17-4.8/sysroot -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/b/f/w/src/git/out/llvm-project/compiler-rt/lib/rtsan/.. -march=x86-64-v2 -D_LIBCPP_AVAILABILITY_HAS_NO_VERBOSE_ABORT=1 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wall -Wno-unused-parameter -O3 -DNDEBUG -fPIC -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden -fno-lto -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -ftrivial-auto-var-init=pattern -DSANITIZER_COMMON_NO_REDEFINE_BUILTINS -fno-rtti -std=c++17 -MD -MT compiler-rt/lib/rtsan/CMakeFiles/RTRtsan.x86_64.dir/rtsan_context.cpp.o -MF compiler-rt/lib/rtsan/CMakeFiles/RTRtsan.x86_64.dir/rtsan_context.cpp.o.d -o compiler-rt/lib/rtsan/CMakeFiles/RTRtsan.x86_64.dir/rtsan_context.cpp.o -c /b/f/w/src/git/out/llvm-project/compiler-rt/lib/rtsan/rtsan_context.cpp
/[b/f/w/src/git/out/llvm-project/compiler-rt/lib/rtsan/rtsan_context.cpp:16](https://cs.corp.google.com/piper///depot/google3/b/f/w/src/git/out/llvm-project/compiler-rt/lib/rtsan/rtsan_context.cpp?l=16):10: fatal error: 'new' file not found
   16 | #include <new>
      | ^~~~~
1 error generated.
```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJy0Vk2T46YW_TV4Q12VjfzVCy9ky3pxvXZ7qtuZrvc2LgRXMhkEeoDcdhbz218hedKTTCrZpKtU3QbOPQcOF7jce1UbxBWZrcksH_EunK1bvZy5-wVRw7_P3IxKK2-rQ-doZqSzStLHx897erRHWnZKy9IG6gN3ASWtuNLK1PTtjA6pClRwY2yglTKSknRj8I2kW3pGLtFRbm6NdRjRZuCKsS54bhK6o-GszJdIojzlVKtSXK9Ued8htRd0tMQI51TYplUaHbhAWNGHD7CEjLP4zcf3b5wV2e5xm5M0-0OUVuW3WMKKzZ5_wUJp9IQVz8fnfkbX5fw0nyZSuW_Ik7Am4DUkom0TS6MUKyJPRVjxRljhnSCsqFVUsF386wOvcUJYkUSoimJCc1MTtiZsTQECdzUGkuaDHHTmi7FvBrQy3RVq01EAf_PO2gj6C73WYbQ0xCXUQvRrjBTX5Zyw4mx9BN1F7uTRYpZMFjBNlpFtkKGQn04vx3xz2hyeXo7Z0_G0zzbPh5f3geLwvM9-7H7c7Xfvvbu_NUfrSwOts7-giM2_2qEkodBwJ86DUzCfwoVF5cfdevPp0yn7nO0es_XucXf8z-mn7OX0dDh93j6vDy_bU7Y-PB9Jmk8oVJ92GwqVseCx4SYoAcoEdK31KihrKFQX5VWptAo3UEYrgx7OSko0FF7ROetImkseEIJq8Lu-ztQddxIl8AtXmt85DL5ReOVaR-g1OE7h1VjoTOdRQssdbzCgo_D65lRA8MEpU3sKr4L7AP_reIxslPfK1FAp1BKUUUFxrX5FF4GqabUSKkDFtQ5nZ7v6HOPjoUEJ_k0FcQaJFe90GOSNxavANkC4tdh3GbgoFzquQQYbpyNRY0D4kxHf1TX6AJHfKTnEg7BNgybyD0sAYc0Fne9djQvQyON5B2UkmsAHu19F4BIafisROuO7trX9xQKVVLw21gclPAiro3JVdUbEOPDY__cRxwP_rn23-k8tPqQU8qd8u_75X7-lwm8J0R8eZYbG4M5dwTbR28gCre3ThULVmTdlJAReavT3lApcfIn5HFD0TvWdPG7Wr0jS3PMKB9Dv0oyk-bcEiwE6WAqv4eyQS4gh4fbHNjis0KER-MNIiYEPC61j7t7nB9bo2-BKf6PEHxfuFJdKQMOFs_6-iQ8PgNeAxt_XHpy6KK6Bd6EP6XOPpHnLQ0BnKOQv2dPuuPvv9vm0Oez3h6d48p63-bbYPW1P6593j8fd08uwNBeCouCDJGkuhhtwsqCwzynsjx9wQcO--OdZE0nBfsRkBf0nL8wfJIbXiszWHyiRZpM5meWELc8htJ6kvSQrhE-EdW1SW1trTIRt4oOlWnTDOGGFxNZGiQGSfqwVaaHjezAn7CHOeRzrg4oHrun9Ns8oYYtYvLAFrZRG2hc1tjOSjDNK6WROyWJDCUuVEbqT-F7sDABKB8Bs-_Xr169knE0GalqjQccDyuT7SmUkV6l8SB_4CFeTxWzGxmw-mY7OqyqVD8sJm05QlvP0Yb4shZiVfCElm8vldDFSKzZms_FyMmXjyXw2TSaL-VKMeTkVYiwWD5JMx9hwpZPoWGJdPeprpdVkls7ny5HmJWrf14OMxceqHyWMxfLQrXqby672ZDrWygf_ThNU0Lh6L_J-Goq8ewVY4uDXqHN69ftsqFU4d-U9CyLdj9vZTyIen_ssLyv2_wAAAP__OWaUhg">