Rename build system module makefiles from "lufa.MODULE.in" to "lufa_MODULE.mk" to prevent makefile from assuming the include is an old style build rule, slowing down the build process.

Prevent the BUILD module from shell-executing multiple processes to determine the avr-size flags to speed up the build, unless the size rule is invoked.

Add warnings and set warnings as errors to the SingleUSBModeTest build test makefile.

LUFA/Build/lufa.cppcheck.in

@@ -1,104 +0,0 @@
-#
-#             LUFA Library
-#     Copyright (C) Dean Camera, 2012.
-#
-#  dean [at] fourwalledcubicle [dot] com
-#           www.lufa-lib.org
-#
-
-LUFA_BUILD_MODULES         += CPPCHECK
-LUFA_BUILD_TARGETS         += cppcheck cppcheck-config
-LUFA_BUILD_MANDATORY_VARS  += SRC
-LUFA_BUILD_OPTIONAL_VARS   += CPPCHECK_INCLUDES CPPCHECK_EXCLUDES CPPCHECK_MSG_TEMPLATE CPPCHECK_ENABLE \
-                              CPPCHECK_SUPPRESS CPPCHECK_FAIL_ON_WARNING CPPCHECK_QUIET CPPCHECK_FLAGS
-LUFA_BUILD_PROVIDED_VARS   += 
-LUFA_BUILD_PROVIDED_MACROS += 
-
-# -----------------------------------------------------------------------------
-#                LUFA CPPCheck Buildsystem Makefile Module.
-# -----------------------------------------------------------------------------
-# DESCRIPTION:
-#   Provides a set of targets to scan a project with the free "cppcheck" static
-#   analysis tool, to check for code errors at runtime (see http://cppcheck.sourceforge.net).
-# -----------------------------------------------------------------------------
-# TARGETS:
-#
-#    cppcheck                  - Scan the project with CPPCheck
-#    cppcheck-config           - Use CPPCheck to look for missing include files
-#
-# MANDATORY PARAMETERS:
-#
-#    SRC                       - List of source files to statically analyze
-#
-# OPTIONAL PARAMETERS:
-#
-#    CPPCHECK_INCLUDES         - Extra include paths to search for missing
-#                                header files
-#    CPPCHECK_EXCLUDES         - Source file paths to exclude checking (can be
-#                                a path fragment if desired)
-#    CPPCHECK_MSG_TEMPLATE     - Template for cppcheck error and warning output
-#    CPPCHECK_ENABLE           - General cppcheck category checks to enable
-#    CPPCHECK_SUPPRESS         - Specific cppcheck warnings to disable by ID
-#    CPPCHECK_FAIL_ON_WARNING  - Set to Y to fail the build on cppcheck
-#                                warnings, N to continue even if warnings occur
-#    CPPCHECK_QUIET            - Enable cppcheck verbose or quiet output mode
-#    CPPCHECK_FLAGS            - Additional flags to pass to cppcheck
-#
-# PROVIDED VARIABLES:
-#
-#    (None)
-#
-# PROVIDED MACROS:
-#
-#    (None)
-#
-# -----------------------------------------------------------------------------
-
-SHELL = /bin/sh
-
-ERROR_IF_UNSET   ?= $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set))
-ERROR_IF_EMPTY   ?= $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank))
-ERROR_IF_NONBOOL ?= $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N))
-
-# Default values of optionally user-supplied variables
-CPPCHECK_INCLUDES            ?=
-CPPCHECK_EXCLUDES            ?=
-CPPCHECK_MSG_TEMPLATE        ?= {file}:{line}: {severity} ({id}): {message}
-CPPCHECK_ENABLE              ?= all
-CPPCHECK_SUPPRESS            ?= variableScope missingInclude
-CPPCHECK_FAIL_ON_WARNING     ?= Y
-CPPCHECK_QUIET               ?= Y
-CPPCHECK_FLAGS               ?= 
-
-# Sanity check user supplied values
-$(foreach MANDATORY_VAR, $(LUFA_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR)))
-$(call ERROR_IF_EMPTY, SRC)
-$(call ERROR_IF_EMPTY, CPPCHECK_MSG_TEMPLATE)
-$(call ERROR_IF_EMPTY, CPPCHECK_ENABLE)
-$(call ERROR_IF_NONBOOL, CPPCHECK_FAIL_ON_WARNING)
-$(call ERROR_IF_NONBOOL, CPPCHECK_QUIET)
-
-# Build a default argument list for cppcheck
-BASE_CPPCHECK_FLAGS := --template="$(CPPCHECK_MSG_TEMPLATE)" $(CPPCHECK_INCLUDES:%=-I%) $(CPPCHECK_EXCLUDES:%=-i%) --inline-suppr --force --std=c99
-
-# Sanity check parameters and construct additional command line arguments to cppcheck
-ifeq ($(CPPCHECK_FAIL_ON_WARNING), Y)
-   BASE_CPPCHECK_FLAGS += --error-exitcode=1
-endif
-ifeq ($(CPPCHECK_QUIET), Y)
-   BASE_CPPCHECK_FLAGS += --quiet
-endif
-
-# Output Messages
-MSG_CPPCHECK_CMD         := ' [CPPCHECK]:'
-
-cppcheck-config:
-	@echo $(MSG_CPPCHECK_CMD) Checking cppcheck configuration check on source files
-	cppcheck $(BASE_CPPCHECK_FLAGS) --check-config $(CPPCHECK_FLAGS) $(SRC)
-
-cppcheck:
-	@echo $(MSG_CPPCHECK_CMD) Performing static analysis on source files
-	cppcheck $(BASE_CPPCHECK_FLAGS) --enable=$(CPPCHECK_ENABLE) $(CPPCHECK_SUPPRESS:%=--suppress=%) $(CPPCHECK_FLAGS) $(SRC)
-
-# Phony build targets for this module
-.PHONY: cppcheck-config cppcheck