Fix GCC AVX SSE problem on mac (core-i7)

CMakeLists.txt

@@ -69,8 +69,13 @@ if (MORSE_DISTRIB_DIR OR EXISTS "${CMAKE_SOURCE_DIR}/CMakeModules/morse/")
   option( SCALFMM_USE_MEM_STATS        "Set to ON to profile memory"                 OFF )
   option( SCALFMM_ATTACHE_SOURCE       "Set to ON to compile with -g"                OFF )
   option( SCALFMM_USE_ADDONS           "Set to ON to compile add ons"                OFF )
-  CMAKE_DEPENDENT_OPTION( SCALFMM_USE_SSE              "Set to ON to compile with SSE support (and use intrinsec SSE P2P)" ON "CPUOPTION_SSE3;NOT CPUOPTION_AVX;NOT CPUOPTION_AVX2" OFF  )
-  CMAKE_DEPENDENT_OPTION( SCALFMM_USE_AVX              "Set to ON to compile with AVX support (and use intrinsec AVX P2P)" ON "CPUOPTION_AVX; NOT CPUOPTION_AVX2" OFF  )
+  if( APPLE ) # to fix problem with  GCC and avx
+	CMAKE_DEPENDENT_OPTION( SCALFMM_USE_SSE              "Set to ON to compile with SSE support (and use intrinsec SSE P2P)" ON "CPUOPTION_SSE3;NOT CPUOPTION_AVX2" OFF  )
+        CMAKE_DEPENDENT_OPTION( SCALFMM_USE_AVX              "Set to ON to compile with AVX support (and use intrinsec AVX P2P)" OFF "CPUOPTION_AVX; NOT CPUOPTION_AVX2" OFF  )
+  else(APPLE)
+        CMAKE_DEPENDENT_OPTION( SCALFMM_USE_SSE              "Set to ON to compile with SSE support (and use intrinsec SSE P2P)" ON "CPUOPTION_SSE3;NOT CPUOPTION_AVX;NOT CPUOPTION_AVX2" OFF  )
+        CMAKE_DEPENDENT_OPTION( SCALFMM_USE_AVX              "Set to ON to compile with AVX support (and use intrinsec AVX P2P)" ON "CPUOPTION_AVX; NOT CPUOPTION_AVX2" OFF  )
+  endif(APPLE)
   CMAKE_DEPENDENT_OPTION( SCALFMM_USE_AVX2             "Set to ON to compile with AVX support (and use intrinsec AVXZ P2P)" ON "CPUOPTION_AVX2" OFF )
   option( SCALFMM_USE_ASSERT           "Set to ON to enable safe tests during execution" ON  )
   option( SCALFMM_USE_MIC_NATIVE       "Set to ON to compile in native mode for MIC" OFF  )
@@ -144,12 +149,15 @@ if (MORSE_DISTRIB_DIR OR EXISTS "${CMAKE_SOURCE_DIR}/CMakeModules/morse/")
         set(SCALFMM_CXX_FLAGS  "${SCALFMM_CXX_FLAGS} -Wno-literal-suffix")
       endif()
     endif()
-    set(AVX_FLAGS "-mtune=native -march=native")
-    set(AVX2_FLAGS "-mtune=native -march=native -mmic")
     IF (APPLE)
-      set(SSE_FLAGS  "-msse3  -mfpmath=sse")   # -mtune=native -march=native
+      set(SSE_FLAGS  "-msse4  -mfpmath=sse")   # -mtune=native -march=native
+      set(SSE_FLAGS  "-msse3  -mfpmath=sse") 
+      set(AVX_FLAGS "-mtune=native -march=avx")
+      set(AVX2_FLAGS "-mtune=native -march=native -mmic")
     else(APPLE)
-      set(SSE_FLAGS  "-mtune=native -march=native")   # -mtune=native -march=native
+      set(SSE_FLAGS  "-mtune=native -march=native")
+      set(AVX_FLAGS "-mtune=native -march=native")
+      set(AVX2_FLAGS "-mtune=native -march=native -mmic")
     endif(APPLE)
   endif()