diff --git a/src/runtime/cgo/gcc_libinit.c b/src/runtime/cgo/gcc_libinit.c
index 68f4a023795db1..09ba38b6d039e4 100644
--- a/src/runtime/cgo/gcc_libinit.c
+++ b/src/runtime/cgo/gcc_libinit.c
@@ -4,6 +4,12 @@
 
 //go:build unix
 
+// When cross-compiling with clang to linux/armv5, atomics are emulated
+// and cause a compiler warning. This results in a build failure since
+// cgo uses -Werror. See #65290.
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Watomic-alignment"
+
 #include <pthread.h>
 #include <errno.h>
 #include <stdio.h>