--- ./include/jemalloc/internal/bit_util.h.orig	2022-05-01 16:19:32.539680176 +0100
+++ ./include/jemalloc/internal/bit_util.h.orig	2022-05-01 16:28:33.940788081 +0100
@@ -82,7 +82,7 @@ 
 
 BIT_UTIL_INLINE uint64_t
 pow2_ceil_u64(uint64_t x) {
-#if (defined(__amd64__) || defined(__x86_64__) || defined(JEMALLOC_HAVE_BUILTIN_CLZ))
+#if ((defined(__amd64__) || defined(__x86_64__) || defined(JEMALLOC_HAVE_BUILTIN_CLZ))) && !defined(__ILP32__)
 	if(unlikely(x <= 1)) {
 		return x;
 	}
@@ -112,12 +112,12 @@ 
 
 BIT_UTIL_INLINE uint32_t
 pow2_ceil_u32(uint32_t x) {
-#if ((defined(__i386__) || defined(JEMALLOC_HAVE_BUILTIN_CLZ)) && (!defined(__s390__)))
+#if (((defined(__i386__) || (defined(__amd64__) || defined(__x86_64__)) && defined(__ILP32__)) || defined(JEMALLOC_HAVE_BUILTIN_CLZ)) && (!defined(__s390__)))
 	if(unlikely(x <= 1)) {
 		return x;
 	}
 	size_t msb_on_index;
-#if (defined(__i386__))
+#if (defined(__i386__)) || defined(__ILP32__)
 	asm ("bsr %1, %0"
 			: "=r"(msb_on_index) // Outputs.
 			: "r"(x-1)           // Inputs.