LP-10 Turn on stricter warnings on OS X

ground/openpilotgcs/openpilotgcs.pri

@@ -233,3 +233,13 @@ win32 {
     # The ((packet)) pragma is used in uav metadata struct and other places
     QMAKE_CXXFLAGS += -mno-ms-bitfields
 }
+
+# Stricter warnigs turned on for OS X.
+macx {
+    CONFIG += warn_on
+    !warn_off {
+        QMAKE_CXXFLAGS_WARN_ON += -Werror
+        QMAKE_CFLAGS_WARN_ON   += -Werror
+        QMAKE_CXXFLAGS_WARN_ON += -Wno-gnu-static-float-init
+    }
+}

ground/openpilotgcs/src/libs/opmapcontrol/src/common.pri

@@ -8,3 +8,10 @@ UI_DIR = uics
 MOC_DIR = mocs
 OBJECTS_DIR = objs
 INCLUDEPATH +=../../../../libs/
+
+# Stricter warnings turned on for OS X.
+macx {
+    CONFIG += warn_on
+    QMAKE_CXXFLAGS_WARN_ON += -Werror
+    QMAKE_CFLAGS_WARN_ON   += -Werror
+}

ground/openpilotgcs/src/libs/qwt/qwt.pro

@@ -17,9 +17,6 @@ include( qwtconfig.pri )
 TEMPLATE = subdirs
 CONFIG   += ordered
 
-# disable all warnings (no need for warnings as qwt sources are imported)
-CONFIG += warn_off
-
 SUBDIRS = \
     src \
 #    textengines \

ground/openpilotgcs/src/libs/qwt/src/src.pro

@@ -35,6 +35,9 @@ DEFINES           += QWT_LIBRARY
 #
 include(../../../openpilotgcslibrary.pri)
 
+# disable all warnings (no need for warnings as qwt sources are imported)
+CONFIG += warn_off
+
 contains(QWT_CONFIG, QwtDll) {
 
     CONFIG += dll

ground/openpilotgcs/src/plugins/ophid/ophid.pro

@@ -46,6 +46,10 @@ macx {
         hidapi/mac/hid.c
 
     LIBS += -framework CoreFoundation -framework IOKit
+
+    # hid.c has too many warnings about unused paramters.
+    QMAKE_CXXFLAGS_WARN_ON += -Wno-unused-parameter
+    QMAKE_CFLAGS_WARN_ON   += -Wno-unused-parameter
 }
 
 linux {