diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3fca2f2e..1d148155 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,5 @@
+cmake_policy(SET CMP0003 OLD) # or cmake_policy(VERSION 2.4)
+
 cmake_minimum_required(VERSION 2.8)
 
 project(stellabellum C CXX)
@@ -70,12 +72,12 @@ elseif (UNIX)
     # linker flags
     if (${CMAKE_BUILD_TYPE} STREQUAL "RELWITHDEBINFO" OR ${CMAKE_BUILD_TYPE} STREQUAL "MINSIZEREL")
         set(CMAKE_SHARED_LINKER_FLAGS "-Wl,-z,norelro,-O3,--sort-common,--as-needed,--relax,-z,combreloc,-z,global,--no-omagic")
-	set(CMAKE_EXE_LINKER_FLAGS "-Wl,-z,norelro,-O3,--sort-common,--as-needed,--relax,-z,combreloc,-z,global,--no-omagic")
     else ()
         set(CMAKE_SHARED_LINKER_FLAGS "-Wl,-z,norelro,-O3,--sort-common,--as-needed,--relax,-z,combreloc,-z,global,--no-omagic,-x,-s")
-	set(CMAKE_EXE_LINKER_FLAGS "-Wl,-z,norelro,-O3,--sort-common,--as-needed,--relax,-z,combreloc,-z,global,--no-omagic,-x,-s")
     endif ()
 
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
+
     # don't put anything too crazy in debug...and any common flags go into CMAKE_CXX_FLAGS
     set(CMAKE_CXX_FLAGS_DEBUG "-D_DEBUG -DDEBUG_LEVEL=2 -DPRODUCTION=0 -O0 -g3")
 
@@ -86,26 +88,28 @@ elseif (UNIX)
     set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELEASE}")
     set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_RELEASE}")
 
-    # Ofast doesn't work with gcc builds
+    # Currently use of clang compiler is breaking some bins, miff & templateCompiler. For dev we will use gcc compiler for now.
     if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
         set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Ofast \
-		-fno-threadsafe-statics -fslp-vectorize \
-		-fno-stack-protector -fstrict-enums -finline-hint-functions \
-		-fno-coverage-mapping -fno-spell-checking \
-		-mno-retpoline")
+		-fno-signed-zeros -freciprocal-math -ffp-contract=fast \
+		-fno-threadsafe-statics -fslp-vectorize-aggressive -fslp-vectorize \
+		-fno-stack-protector -fstrict-enums -fstrict-vtable-pointers \
+		-fno-coverage-mapping -fno-spell-checking -fshort-enums -finline-functions \
+		-finline-hint-functions -fno-unroll-loops")
 
         set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -ggdb")
 
         # RELWITHDEBINFO is used for building bins that produce profdata files
 	# we only need the basics of our heavy optimizations here, i think - that and one of these flags
 	# breaks JNI when we profile
-        set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-Ofast -finline-hint-functions -fprofile-instr-generate")
+        set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-Ofast -fno-unroll-loops -finline-functions \
+		-finline-hint-functions -fprofile-instr-generate")
 
         # MINSIZEREL is used for profiled, flto builds
         set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_RELEASE} -flto -fwhole-program-vtables")
     elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-        # O3 and Ofast include one or more flags that cause java to crash when using gcc6
-        set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2 -fno-signed-zeros -freciprocal-math -fno-unroll-loops -fno-tree-loop-optimize")
+        # making changes for all bins to compile correctly with gcc5.4 or gcc6.4 we will test -O3 later
+        set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2 -fno-signed-zeros -freciprocal-math")
         set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Og")
     elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel")
         set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
@@ -113,12 +117,17 @@ elseif (UNIX)
 
     # our "always on" flags - build by default for the system we're on but include all instruction sets
     set(CMAKE_CXX_FLAGS "-m32 -pipe -march=native -mtune=native \
+		-msse -msse2 -msse3 -mmmx -m3dnow \
 		-Wformat -Wno-overloaded-virtual -Wno-missing-braces -Wno-format \
 		-Wno-write-strings -Wno-unknown-pragmas \
 		-Wno-uninitialized -Wno-reorder -Wno-tautological-constant-out-of-range-compare")
 
-    # if you'd like to opt in to our statistics, remove "-DSTELLA_INTERNAL" and your server will send us a heartbeat at startup
-    add_definitions(-DLINUX -D_REENTRANT -Dlinux -D_USING_STL -D_GNU_SOURCE -D_XOPEN_SOURCE=500 -U_FORTIFY_SOURCE -DSTELLA_INTERNAL)
+    add_definitions(-DLINUX -D_REENTRANT -Dlinux -D_USING_STL -D_GNU_SOURCE -D_XOPEN_SOURCE=500 -U_FORTIFY_SOURCE)
+
+    # release and debug are internal use only
+    if (${CMAKE_BUILD_TYPE} STREQUAL "Debug" OR ${CMAKE_BUILD_TYPE} STREQUAL "Release")
+        add_definitions(-DSTELLA_INTERNAL)
+    endif ()
 
     # this is so some profile specific stuff is turned on in the code
     if (${CMAKE_BUILD_TYPE} STREQUAL "RELWITHDEBINFO")
@@ -129,3 +138,4 @@ endif ()
 add_subdirectory(external)
 add_subdirectory(engine)
 add_subdirectory(game)
+
diff --git a/engine/server/application/CentralServer/src/linux/CentralServer.profdata b/engine/server/application/CentralServer/src/linux/CentralServer.profdata
deleted file mode 100644
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diff --git a/engine/server/application/ChatServer/src/linux/ChatServer.profdata b/engine/server/application/ChatServer/src/linux/ChatServer.profdata
deleted file mode 100644
index 26bbd877..00000000
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diff --git a/engine/server/application/CommoditiesServer/src/linux/CommoditiesServer.profdata b/engine/server/application/CommoditiesServer/src/linux/CommoditiesServer.profdata
deleted file mode 100644
index 72c10de4..00000000
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diff --git a/engine/server/application/ConnectionServer/src/linux/ConnectionServer.profdata b/engine/server/application/ConnectionServer/src/linux/ConnectionServer.profdata
deleted file mode 100644
index 29282771..00000000
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diff --git a/engine/server/application/LogServer/src/linux/LogServer.profdata b/engine/server/application/LogServer/src/linux/LogServer.profdata
deleted file mode 100644
index 43f50088..00000000
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diff --git a/engine/server/application/LoginServer/src/linux/LoginServer.profdata b/engine/server/application/LoginServer/src/linux/LoginServer.profdata
deleted file mode 100644
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diff --git a/engine/server/application/PlanetServer/src/linux/PlanetServer.profdata b/engine/server/application/PlanetServer/src/linux/PlanetServer.profdata
deleted file mode 100644
index 9ae349d2..00000000
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diff --git a/engine/server/application/TaskManager/src/linux/TaskManager.profdata b/engine/server/application/TaskManager/src/linux/TaskManager.profdata
deleted file mode 100644
index aab8dc18..00000000
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diff --git a/game/server/application/SwgDatabaseServer/src/linux/SwgDatabaseServer.profdata b/game/server/application/SwgDatabaseServer/src/linux/SwgDatabaseServer.profdata
deleted file mode 100644
index 14da98d1..00000000
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diff --git a/game/server/application/SwgGameServer/src/linux/SwgGameServer.profdata b/game/server/application/SwgGameServer/src/linux/SwgGameServer.profdata
deleted file mode 100644
index 362d29a9..00000000
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