diff --git a/BACKLOG.md b/BACKLOG.md
index dde1df8..fe45946 100644
--- a/BACKLOG.md
+++ b/BACKLOG.md
@@ -16,7 +16,3 @@
 * Eliminate bs_test().
 * Make it easy to run a single case, or a single set.
 * Use bs_test_case_init(), bs_test_case_fini() for the overloaded prepare/report.
-
-## c2x_compat
-
-* Eliminate this. C function overwrites cause build failures :-/
diff --git a/include/libbase/c2x_compat.h b/include/libbase/c2x_compat.h
deleted file mode 100644
index 4261cfc..0000000
--- a/include/libbase/c2x_compat.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* ========================================================================= */
-/**
- * @file c2x_compat.h
- * Compatibility layer for upcoming convenient C2x methods.
- *
- * @copyright
- * Copyright 2023 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef __LIBBASE_C2X_COMPAT_H__
-#define __LIBBASE_C2X_COMPAT_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif  // __cplusplus
-
-/**
- * Returns a pointer to a new string which is a duplicate of `s`.
- *
- * @param s
- *
- * @return A pointer to the duplicated string, to be free'd with free(3).
- */
-char *strdup(const char*s);
-
-#ifdef __cplusplus
-}  // extern "C"
-#endif  // __cplusplus
-
-#endif /* __LIBBASE_C2X_COMPAT_H__ */
-/* == End of c2x_compat.h ================================================== */
diff --git a/include/libbase/libbase.h b/include/libbase/libbase.h
index 2b15962..3c6bf70 100644
--- a/include/libbase/libbase.h
+++ b/include/libbase/libbase.h
@@ -25,7 +25,6 @@
 #include "assert.h"
 #include "atomic.h"
 #include "avltree.h"
-#include "c2x_compat.h"
 #include "def.h"
 #include "dequeue.h"
 #include "dllist.h"
@@ -52,7 +51,6 @@
 // IWYU pragma: no_include "libbase/assert.h"
 // IWYU pragma: no_include "libbase/atomic.h"
 // IWYU pragma: no_include "libbase/avltree.h"
-// IWYU pragma: no_include "libbase/c2x_compat.h"
 // IWYU pragma: no_include "libbase/def.h"
 // IWYU pragma: no_include "libbase/dequeue.h"
 // IWYU pragma: no_include "libbase/dllist.h"
diff --git a/include/libbase/log_wrappers.h b/include/libbase/log_wrappers.h
index 2f2951b..3c9589b 100644
--- a/include/libbase/log_wrappers.h
+++ b/include/libbase/log_wrappers.h
@@ -24,7 +24,6 @@
 #include "log.h"
 
 #include <stdlib.h>
-#include "c2x_compat.h"
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a63b39b..217b490 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -17,7 +17,6 @@ SET(PUBLIC_HEADER_FILES
   assert.h
   atomic.h
   avltree.h
-  c2x_compat.h
   def.h
   dequeue.h
   dllist.h
@@ -43,7 +42,6 @@ SET(SOURCES
   arg.c
   atomic.c
   avltree.c
-  c2x_compat.c
   dequeue.c
   dllist.c
   dynbuf.c
diff --git a/src/c2x_compat.c b/src/c2x_compat.c
deleted file mode 100644
index e7344b9..0000000
--- a/src/c2x_compat.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* ========================================================================= */
-/**
- * @file c2x_compat.c
- *
- * @copyright
- * Copyright 2023 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <libbase/c2x_compat.h>
-
-#include <stdlib.h>
-#include <string.h>
-
-/* ------------------------------------------------------------------------- */
-char *strdup(const char *str) {
-    size_t len = strlen(str);
-    char *new_ptr = malloc(len + 1);
-    if (NULL == new_ptr) return NULL;
-    new_ptr[len] = '\0';
-    memcpy(new_ptr, str, len);
-    return new_ptr;
-}
-
-/* == End of c2x_compat.c ================================================== */