--- CMakeLists.txt.orig	2019-01-09 10:08:35 UTC
+++ CMakeLists.txt
@@ -96,9 +96,9 @@ elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "(x64
     set(WTF_CPU_X86_64 1)
 elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "(i[3-6]86|x86)")
     set(WTF_CPU_X86 1)
-elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "ppc")
+elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "(ppc|powerpc)")
     set(WTF_CPU_PPC 1)
-elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
+elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "(ppc64|powerpc64)")
     set(WTF_CPU_PPC64 1)
 elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
     set(WTF_CPU_PPC64LE 1)