Fixed for compilation in big endian PPC. "Everything is broken thought due to little endian logic."

CMakeLists.txt

@@ -137,9 +137,24 @@ endif()
 
 if(ARCH_ID STREQUAL "ppc64le")
   set(PPC64LE 1)
+  set(PPC64   0)
+  set(PPC     0)
+
+endif()
+
+if(ARCH_ID STREQUAL "powerpc64" OR ARCH_ID STREQUAL "ppc64")
+  set(PPC64LE 0)
+  set(PPC64   1)
+  set(PPC     0)
 endif()
 
-if(WIN32 OR ARM)
+if(ARCH_ID STREQUAL "powerpc")
+  set(PPC64LE 0)
+  set(PPC64   0)
+  set(PPC     1)
+endif()
+
+if(WIN32 OR ARM OR PPC64LE OR PPC64 OR PPC)
   set(OPT_FLAGS_RELEASE "-O2")
 else()
   set(OPT_FLAGS_RELEASE "-Ofast")
@@ -474,7 +489,11 @@ else()
   if(ARCH STREQUAL "default")
     set(ARCH_FLAG "")
   elseif(PPC64LE)
-    set(ARCH_FLAG "-mcpu=${ARCH}")
+    set(ARCH_FLAG "-mcpu=power8")
+  elseif(PPC64)
+    set(ARCH_FLAG "-mcpu=970")
+  elseif(PPC)
+    set(ARCH_FLAG "-mcpu=7400")
   elseif(IOS AND ARCH STREQUAL "arm64")
     message(STATUS "IOS: Changing arch from arm64 to armv8")
     set(ARCH_FLAG "-march=armv8")
@@ -584,12 +603,12 @@ else()
     message(STATUS "AES support explicitly disabled")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DNO_AES")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNO_AES")
-  elseif(NOT ARM AND NOT PPC64LE)
+  elseif(NOT ARM AND NOT PPC64LE AND NOT PPC64 AND NOT PPC)
     message(STATUS "AES support enabled")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maes")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maes")
-  elseif(PPC64LE)
-    message(STATUS "AES support not available on ppc64le")
+  elseif(PPC64LE OR PPC64 OR PPC)
+    message(STATUS "AES support not available on POWER")
   elseif(ARM6)
     message(STATUS "AES support not available on ARMv6")
   elseif(ARM7)