[gn] port 311ff39 more

nico · nico · commit 694c444b5bbb · 2024-04-15T20:58:14.000-04:00
diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -982,6 +982,7 @@ if (current_toolchain == default_toolchain) {
       "ctgmath",
       "ctime",
       "ctype.h",
+      "cuchar",
       "cwchar",
       "cwctype",
       "deque",
