diff --git a/prov/opx/include/fi_opx_tid_cache.h b/prov/opx/include/fi_opx_tid_cache.h
index d052eabeaef..54fe835adad 100644
--- a/prov/opx/include/fi_opx_tid_cache.h
+++ b/prov/opx/include/fi_opx_tid_cache.h
@@ -47,8 +47,8 @@
  */
 int opx_tid_cache_setup(struct ofi_mr_cache **cache, struct opx_tid_domain *domain);
 
-int  opx_tid_cache_add_abort();
-void opx_tid_cache_delete_abort();
+int  opx_tid_cache_add_abort(struct ofi_mr_cache *, struct ofi_mr_entry *);
+void opx_tid_cache_delete_abort(struct ofi_mr_cache *, struct ofi_mr_entry *);
 
 enum opx_tid_cache_entry_status {
 	OPX_TID_CACHE_ENTRY_NOT_FOUND = 0,
diff --git a/prov/opx/include/rdma/opx/fi_opx.h b/prov/opx/include/rdma/opx/fi_opx.h
index 12018dc900c..2d678ffd4be 100644
--- a/prov/opx/include/rdma/opx/fi_opx.h
+++ b/prov/opx/include/rdma/opx/fi_opx.h
@@ -94,7 +94,7 @@
 // Useful for checking that structures are the correct size and other
 // compile-time tests. static_assert has existed since C11 so this
 // should be safe, but we have an else clause just in case.
-#if defined(static_assert)
+#if __STDC_VERSION__ >= 201112L
 #define OPX_COMPILE_TIME_ASSERT(cond, msg) static_assert(cond, msg)
 #else
 #define OPX_COMPILE_TIME_ASSERT(cond, msg) \
diff --git a/prov/opx/src/fi_opx_tid_cache.c b/prov/opx/src/fi_opx_tid_cache.c
index 0861e767ff4..e0359c1693a 100644
--- a/prov/opx/src/fi_opx_tid_cache.c
+++ b/prov/opx/src/fi_opx_tid_cache.c
@@ -1787,14 +1787,14 @@ void opx_tid_cache_cleanup(struct ofi_mr_cache *cache)
 	assert(cache->uncached_size == 0);
 }
 
-int opx_tid_cache_add_abort()
+int opx_tid_cache_add_abort(struct ofi_mr_cache *, struct ofi_mr_entry *)
 {
 	fprintf(stderr, "%s unexpected function call\n", __func__);
 	abort();
 	return 0;
 }
 
-void opx_tid_cache_delete_abort()
+void opx_tid_cache_delete_abort(struct ofi_mr_cache *, struct ofi_mr_entry *)
 {
 	fprintf(stderr, "%s unexpected function call\n", __func__);
 	abort();