diff -Nurd cffi-1.15.0.orig/testing/cffi1/test_verify1.py cffi-1.15.0/testing/cffi1/test_verify1.py
--- cffi-1.15.0.orig/testing/cffi1/test_verify1.py	2021-10-12 19:59:28.000000000 -0400
+++ cffi-1.15.0/testing/cffi1/test_verify1.py	2022-02-04 11:39:08.000000000 -0500
@@ -2101,7 +2101,7 @@
         ffi1 = FFI()
         ffi1.cdef("extern int foo_verify_dlopen_flags_1;")
         sys.setdlopenflags(ffi1.RTLD_GLOBAL | ffi1.RTLD_NOW)
-        lib1 = ffi1.verify("int foo_verify_dlopen_flags_1;")
+        lib1 = ffi1.verify("int foo_verify_dlopen_flags_1;", extra_link_args=["-Wl,-flat_namespace"])
     finally:
         sys.setdlopenflags(old)
 
@@ -2110,7 +2110,7 @@
     lib2 = ffi2.verify("""
         extern int foo_verify_dlopen_flags_1;
         static int *getptr(void) { return &foo_verify_dlopen_flags_1; }
-    """)
+    """, extra_link_args=["-Wl,-flat_namespace", "-Wl,-undefined,suppress"])
     p = lib2.getptr()
     assert ffi1.addressof(lib1, 'foo_verify_dlopen_flags_1') == p