--- _cabal_deps/text-2.1.4/simdutf/simdutf.h.orig	2001-09-09 01:46:40 UTC
+++ _cabal_deps/text-2.1.4/simdutf/simdutf.h
@@ -171,7 +171,7 @@
 #elif defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
   #define SIMDUTF_IS_ARM64 1
 #elif defined(__PPC64__) || defined(_M_PPC64)
-  #if defined(__VEC__) && defined(__ALTIVEC__)
+  #if defined(__VEC__) && defined(__ALTIVEC__) && defined(__POWER8_VECTOR__)
     #define SIMDUTF_IS_PPC64 1
   #endif
 #elif defined(__s390__)