Fix the OSS fuzz build. (#86562)
The OSS fuzz build has been broken for a while because of changes
to the cmake configuration. This patch fixes the issues by defaulting to
libunwind as the default runtime
diff --git a/libcxx/utils/ci/oss-fuzz.sh b/libcxx/utils/ci/oss-fuzz.sh
index d5e7fce..e572340 100755
--- a/libcxx/utils/ci/oss-fuzz.sh
+++ b/libcxx/utils/ci/oss-fuzz.sh
@@ -14,7 +14,7 @@
mkdir ${BUILD}
cmake -S ${MONOREPO_ROOT}/runtimes -B ${BUILD} \
- -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi" \
+ -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL}"
cmake --build ${BUILD} --target install-cxx-headers
