Suppress -Wzero-length-array

Summary: Suppress a `-Wzero-length-array` warning when building with `arvr/mode/platform010`.

Reviewed By: h-friederich

Differential Revision: D62024034

fbshipit-source-id: 510cc828ba7bfe3d49b18e8c56808ed861421d39

folly/Subprocess.cpp

@@ -571,13 +571,16 @@ void Subprocess::closeInheritedFds(const Options::FdMap& fdActions) {
       // We do not use the POSIX interfaces (opendir, readdir, etc..) for
       // reading a directory since they may allocate memory / grab a lock, which
       // is unsafe in this context.
+      FOLLY_PUSH_WARNING
+      FOLLY_CLANG_DISABLE_WARNING("-Wzero-length-array")
       struct linux_dirent64 {
         uint64_t d_ino;
         int64_t d_off;
         uint16_t d_reclen;
         unsigned char d_type;
         char d_name[0];
       } const* entry;
+      FOLLY_POP_WARNING
       for (int offset = 0; offset < res; offset += entry->d_reclen) {
         entry = reinterpret_cast<struct linux_dirent64*>(buffer + offset);
         if (entry->d_type != DT_LNK) {