diff --git a/cmake/BuildParameters.cmake b/cmake/BuildParameters.cmake
index 3df23ba056..babff484c4 100644
--- a/cmake/BuildParameters.cmake
+++ b/cmake/BuildParameters.cmake
@@ -91,7 +91,12 @@ set(CMAKE_SHARED_LIBRARY_CXX_FLAGS "")
 #-------------------------------------------------------------------------------
 # Set some default compiler flags
 #-------------------------------------------------------------------------------
-set(DEFAULT_WARNINGS "-Wno-write-strings -Wno-format -Wno-unused-parameter -Wno-unused-value -Wstrict-aliasing -Wno-unused-function -Wno-attributes -Wno-unused-result -Wno-missing-field-initializers -Wno-unused-local-typedefs -Wno-parentheses")
+#set(DEFAULT_WARNINGS "-Wno-write-strings -Wno-format -Wno-unused-parameter  -Wno-unused-function -Wno-unused-result  -Wno-unused-local-typedefs -Wno-parentheses")
+# -Wno-attributes: "always_inline function might not be inlinable" <= real spam (thousand of warnings!!!)
+# -Wstrict-aliasing: to fix one day aliasing issue
+# -Wno-missing-field-initializers: standard allow to init only the begin of struct/array in static init. Just a silly warning.
+# -Wno-unused-function: warn for function not used in release build
+set(DEFAULT_WARNINGS "-Wno-attributes -Wstrict-aliasing -Wno-missing-field-initializers -Wno-unused-function")
 set(HARDEING_OPT "-D_FORTIFY_SOURCE=2  -Wformat -Wformat-security")
 set(DEFAULT_GCC_FLAG "-m32 -msse -msse2 -march=i686 -pthread ${DEFAULT_WARNINGS} ${HARDEING_OPT}")
 if(CMAKE_BUILD_TYPE MATCHES "Debug|Devel")
diff --git a/plugins/GSdx/CMakeLists.txt b/plugins/GSdx/CMakeLists.txt
index 891eec669b..128240da95 100644
--- a/plugins/GSdx/CMakeLists.txt
+++ b/plugins/GSdx/CMakeLists.txt
@@ -15,9 +15,10 @@ set(CommonFlags
     -mpreferred-stack-boundary=2
     -mfpmath=sse
     #-Wstrict-aliasing # Allow to track strict aliasing issue.
-    -Wunused-variable
     -std=c++0x
     -fno-strict-aliasing
+    -Wno-unknown-pragmas
+    -Wno-parentheses
     )
 
 set(OptimizationFlags
@@ -32,7 +33,7 @@ endif(CMAKE_BUILD_TYPE STREQUAL Debug)
 
 # Devel - Build
 if(CMAKE_BUILD_TYPE STREQUAL Devel)
-    add_definitions(${CommonFlags} ${OptimizationFlags} -D_DEVEL -g -W)
+    add_definitions(${CommonFlags} ${OptimizationFlags} -D_DEVEL -g)
 endif(CMAKE_BUILD_TYPE STREQUAL Devel)
 
 # Release - Build
diff --git a/plugins/zzogl-pg/opengl/Linux/Conf.cpp b/plugins/zzogl-pg/opengl/Linux/Conf.cpp
index c783aa0052..e3d62c589f 100644
--- a/plugins/zzogl-pg/opengl/Linux/Conf.cpp
+++ b/plugins/zzogl-pg/opengl/Linux/Conf.cpp
@@ -81,19 +81,31 @@ void LoadConfig()
 	}
 
 	err = fscanf(f, "interlace = %hhx\n", &conf.interlace);
-
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "mrtdepth = %hhx\n", &conf.mrtdepth);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "zzoptions = %x\n", &conf.zz_options._u32);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "options = %x\n", &conf.hacks._u32);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "bilinear = %hhx\n", &conf.bilinear);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "aliasing = %hhx\n", &conf.aa);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "width = %x\n", &conf.width);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "height = %x\n", &conf.height);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "x = %x\n", &conf.x);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "y = %x\n", &conf.y);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "log = %x\n", &conf.log);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "skipdraw = %x\n", &conf.SkipDraw);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	err = fscanf(f, "disablehacks = %x\n", &conf.disableHacks);
+	if (err != 1) ZZLog::Error_Log("Failed to read zzogl option");
 	fclose(f);
 
 	// turn off all hacks by default
diff --git a/plugins/zzogl-pg/opengl/Regs.cpp b/plugins/zzogl-pg/opengl/Regs.cpp
index 9df70fd612..ec091879e7 100644
--- a/plugins/zzogl-pg/opengl/Regs.cpp
+++ b/plugins/zzogl-pg/opengl/Regs.cpp
@@ -74,7 +74,7 @@ u32 s_uClampData[2] = {0, };
 #ifdef SPAM_UNUSED_REGISTERS
 #define REG_LOG ZZLog::Error_Log
 #else
-#define REG_LOG 0 && 
+#define REG_LOG(exp, ...) ((void)0)
 #endif
 
 void __gifCall GIFPackedRegHandlerNull(const u32* data)