https://bugs.gentoo.org/941738

There are reports of this working with libuv-1.51.0 and cmake-4.1.2 but
the fix was likely on the kernel side which means it's not something we
can rely on, especially for an arch like ppc32.

This could be submitted upstream if we can identify what actually fixed
it and therefore the first good kernel version to check for, as we do
for hppa.
--- a/src/unix/linux.c
+++ b/src/unix/linux.c
@@ -464,6 +464,9 @@ static int uv__use_io_uring(uint32_t flags) {
 #elif defined(__powerpc64__) || defined(__ppc64__)
   /* See https://github.com/libuv/libuv/issues/4283. */
   return 0; /* Random SIGSEGV in signal handler. */
+#elif defined(__powerpc__) && !defined(__powerpc64__)
+  /* See https://bugs.gentoo.org/941738. */
+  return 0; /* Crash in uv__spawn_and_init_child_fork. */
 #else
   /* Ternary: unknown=0, yes=1, no=-1 */
   static _Atomic int use_io_uring;