cflags adapted to cpuinfo (fixes problem of illegal instruction on machines without avx2)

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7713 818b1a75-f10b-46b9-bf7c-635c3b92a50f

cmake_targets/CMakeLists.txt

@@ -128,8 +128,24 @@ Message("Architecture is ${CMAKE_SYSTEM_PROCESSOR}")
 if (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l")
   set(C_FLAGS_PROCESSOR "-gdwarf-2 -mfloat-abi=hard -mfpu=neon -lgcc -lrt")
 else (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l")
-  set(C_FLAGS_PROCESSOR "-mavx2")
+  file(STRINGS "/proc/cpuinfo" CPUINFO REGEX flags LIMIT_COUNT 1)
+  #Message("CPUINFO is ${CPUINFO}")
+  if (CPUINFO MATCHES "avx2")
+    set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -mavx2")
+  endif()
+  if (CPUINFO MATCHES "sse4_2")
+    set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -msse4.2")
+  endif()
+  if (CPUINFO MATCHES "sse4_1")
+    set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -msse4.1")
+  endif()
+  if (CPUINFO MATCHES "ssse3")
+    set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -mssse3")
+  endif()
 endif()
+Message("C_FLAGS_PROCESSOR is ${C_FLAGS_PROCESSOR}")
+
+
 #
 set(CMAKE_C_FLAGS
   "${CMAKE_C_FLAGS} ${C_FLAGS_PROCESSOR} -std=gnu99 -Wall -Wstrict-prototypes -fno-strict-aliasing -rdynamic -funroll-loops -Wno-packed-bitfield-compat -fPIC ")