--- mednafen/configure.ac.old	2020-05-04 05:35:56.000000000 +0000
+++ mednafen/configure.ac	2020-07-08 18:14:09.005569259 +0000
@@ -860,7 +860,7 @@
                 AM_CONDITIONAL(ARCH_X86_32, true)
 		;;
 
-	powerpc*)
+	powerpc*|ppc*)
 	        AC_DEFINE([ARCH_POWERPC], [1], [Define if we are compiling for PPC architectures.])
 	        AM_CONDITIONAL(ARCH_POWERPC, true)