make new changes

Author: mehendarkarprajwal

ggml/src/ggml-cpu/CMakeLists.txt

@@ -287,7 +287,7 @@ function(ggml_add_cpu_backend_variant_impl tag_name)
                 endif()
             endif()
         endif()
-    elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "ppc64" OR ${CMAKE_SYSTEM_PROCESSOR} MATCHES "powerpc")
+    elseif ("${CMAKE_SYSTEM_PROCESSOR} " STREQUAL "ppc64 " OR "${CMAKE_SYSTEM_PROCESSOR} " STREQUAL "powerpc ")
         message(STATUS "PowerPC detected")
         if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "ppc64")
             file(READ "/proc/cpuinfo" POWER10_M)