## Haiku Generic Makefile Engine v2.6 ##

## Does all the hard work for the Generic Makefile, which only has to specify
## the project parameters.

## Supports Generic Makefile v2.6.
##   Probably works with Generic Makefile v2.0+, but support is not guaranteed.

# Determine the CPU type
MACHINE=$(shell uname -m)
ifeq ($(MACHINE), BePC)
	CPU = x86
else
	CPU = $(MACHINE)
endif

# Set up defaults.
ifeq ($(NAME), )
	NAME = NameThisApp
endif

ifeq ($(TYPE), )
	TYPE = APP
endif

ifeq ($(APP_MIME_SIG), )
	APP_MIME = x.vnd-Haiku-$(NAME)
endif

ifeq ($(DRIVER_PATH), )
	DRIVER_PATH = misc
endif

# Set the core tools if they're not already specified.
MIMESET	:= mimeset
XRES	:= xres
RESCOMP	:= rc
CC		:= $(CC)
C++		:= $(CXX)

# Set up CFLAGS.
ifeq ($(strip $(TYPE)), DRIVER)
	CFLAGS	+= -D_KERNEL_MODE=1 -fno-pic
else
	CFLAGS +=
endif

# Set up optimization flags.
ifeq ($(strip $(OPTIMIZE)), FULL)
	OPTIMIZER	= -O3
else
ifeq ($(strip $(OPTIMIZE)), SOME)
	OPTIMIZER	= -O1
else
ifeq ($(strip $(OPTIMIZE)), NONE)
	OPTIMIZER	= -O0
else
#	OPTIMIZE isn't set, so set it to FULL
	OPTIMIZER	= -O3
endif
endif
endif

# Set up debug information flags.
ifeq ($(strip $(DEBUGGER)), TRUE)
	DEBUG += -g
	OPTIMIZER = -O0
endif
CFLAGS += $(OPTIMIZER) $(DEBUG)

# Set up the warning flags.
ifeq ($(strip $(WARNINGS)), ALL)
	CFLAGS += -Wall -Wno-multichar -Wno-ctor-dtor-privacy
else
ifeq ($(strip $(WARNINGS)), NONE)
	CFLAGS += -w
endif
endif

# Set up the linker & linker flags.
ifeq ($(origin LD), default)
	LD			:= $(CC)
endif
LDFLAGS		+= $(DEBUG)

# Binary-type-specific linker flags.
ifeq ($(strip $(TYPE)), APP)
	LDFLAGS += -Xlinker -soname=_APP_
else
ifeq ($(strip $(TYPE)), SHARED)
	LDFLAGS += -shared -Xlinker -soname=$(NAME)
else
ifeq ($(strip $(TYPE)), DRIVER)
	LDFLAGS += -nostdlib /boot/system/develop/lib/_KERNEL_ \
				/boot/system/develop/lib/haiku_version_glue.o
endif
endif
endif

# Get the compiler version.
CC_VER = $(word 1, $(subst -, , $(subst ., , $(shell $(CC) -dumpversion))))

# Set the object directory if it isn't already.
OBJ_DIR := objects.$(CPU)-$(CC)$(CC_VER)-$(if $(DEBUGGER),debug,release)

# Output the binary alongside the objects unless another directory is specified.
ifeq ($(TARGET_DIR), )
	TARGET_DIR	:= $(OBJ_DIR)
endif

# NOTE: make doesn't find the target if its name is enclosed in quotes.
ifeq ($(strip $(TYPE)), STATIC)
	TARGET		:= $(TARGET_DIR)/$(NAME).a
else
	TARGET		:= $(TARGET_DIR)/$(NAME)
endif

# Psuedo-function for converting a list of source files in SRCS variable to a
# corresponding list of object files in $(OBJ_DIR)/xxx.o. The "function" strips
# off the src file suffix (.ccp or .c or whatever) and then strips off the
# off the directory name, leaving just the root file name. It then appends the
# .o suffix and prepends the $(OBJ_DIR)/ path
define SRCS_LIST_TO_OBJS
	$(addprefix $(OBJ_DIR)/, $(addsuffix .o, $(foreach file, $(SRCS), \
	$(basename $(notdir $(file))))))
endef

define SRCS_LIST_TO_DEPENDS
	$(addprefix $(OBJ_DIR)/, $(addsuffix .d, $(foreach file, $(SRCS), \
	$(basename $(notdir $(file))))))
endef

OBJS = $(SRCS_LIST_TO_OBJS)
DEPENDS = $(SRCS_LIST_TO_DEPENDS)

# Create a unique list of paths to our sourcefiles and resources.
SRC_PATHS += $(sort $(foreach file, $(SRCS) $(RSRCS) $(RDEFS), $(dir $(file))))

# Add source paths to VPATH if not already present.
VPATH :=
VPATH += $(addprefix :, $(subst  ,:, $(filter-out $($(subst, :, ,$(VPATH))), $(SRC_PATHS))))

# Set up the local & system include paths and C++ stdlibs.
ifneq (,$(filter $(CPU),x86 x86_64))
	LOC_INCLUDES = $(foreach path, $(SRC_PATHS) $(LOCAL_INCLUDE_PATHS), $(addprefix -I, $(path)))
 ifeq ($(CC_VER), 2)
	INCLUDES = $(LOC_INCLUDES)
	INCLUDES += -I-
	INCLUDES += $(foreach path, $(SYSTEM_INCLUDE_PATHS), $(addprefix -I, $(path)))

	STDCPPLIBS = stdc++.r4
 else
	INCLUDES = -iquote./
	INCLUDES += $(foreach path, $(SRC_PATHS) $(LOCAL_INCLUDE_PATHS), $(addprefix -iquote, $(path)))
	INCLUDES += $(foreach path, $(SYSTEM_INCLUDE_PATHS), $(addprefix -isystem, $(path)))

	STDCPPLIBS = stdc++ supc++
 endif
else
ifeq ($(CPU), ppc)
	LOC_INCLUDES = $(foreach path, $(SRC_PATHS) $(LOCAL_INCLUDE_PATHS), $(addprefix -I, $(path)))
	SYS_INCLUDES += -i-
	SYS_INCLUDES += $(foreach path, $(SYSTEM_INCLUDE_PATHS), $(addprefix -i , $(path)))

	INCLUDES = $(LOC_INCLUDES) $(SYS_INCLUDES)
endif
endif

# Add the -L prefix to all of the library paths.
LINK_PATHS = $(foreach path, $(SRC_PATHS) $(LIBPATHS), \
	$(addprefix -L, $(path)))

# Handle the additional libraries specified. If the libraries have a .so or
# a .a prefix, or if they are _APP_ or _KERNEL_, simply add them to the list.
LINK_LIBS += $(filter %.so %.a _APP_ _KERNEL_, $(LIBS))
# If the libraries do not have suffixes and are not _APP_ or _KERNEL_,
# prepend -l to each name:(e.g. "be" becomes "-lbe").
LINK_LIBS += $(foreach lib, $(filter-out %.so %.a _APP_ _KERNEL_, $(LIBS)), $(addprefix -l, $(lib)))

# Add the linkpaths and linklibs to LDFLAGS.
LDFLAGS += $(LINK_PATHS)  $(LINK_LIBS)

# Add the defines to CFLAGS.
CFLAGS += $(foreach define, $(DEFINES), $(addprefix -D, $(define)))

# Add the additional compiler flags to CFLAGS.
CFLAGS += $(COMPILER_FLAGS)

# Add the additional linkflags to LDFLAGS
LDFLAGS += $(LINKER_FLAGS)

# Use the archiving tools to create an an archive if we're building a static
# library, otherwise use the linker.
ifeq ($(strip $(TYPE)), STATIC)
	BUILD_LINE = ar -cru "$(TARGET)" $(OBJS)
else
	BUILD_LINE = $(LD) -o "$@" $(OBJS) $(LDFLAGS)
endif

# Pseudo-function for converting a list of resource definition files in RDEFS
# variable to a corresponding list of object files in $(OBJ_DIR)/xxx.rsrc.
# The "function" strips off the rdef file suffix (.rdef) and then strips
# of the directory name, leaving just the root file name. It then appends the
# the .rsrc suffix and prepends the $(OBJ_DIR)/ path.
define RDEFS_LIST_TO_RSRCS
	$(addprefix $(OBJ_DIR)/, $(addsuffix .rsrc, $(foreach file, $(RDEFS), \
	$(basename $(notdir $(file))))))
endef

# Create the resource definitions instruction in case RDEFS is not empty.
ifeq ($(RDEFS), )
	RSRCS +=
else
	RSRCS += $(RDEFS_LIST_TO_RSRCS)
endif

# Create the resource instruction.
ifeq ($(RSRCS), )
	DO_RSRCS :=
else
	DO_RSRCS := $(XRES) -o $(TARGET) $(RSRCS)
endif

# Set the directory for internationalization sources (catkeys) if it isn't
# already.
CATKEYS_DIR	:= locales

# Set the directory for internationalization resource data (catalogs) if it
# isn't already.
CATALOGS_DIR := $(OBJ_DIR)/$(APP_MIME_SIG)

# Pseudo-function for converting a list of language codes in CATALOGS variable
# to a corresponding list of catkeys files in $(CATALOGS_DIR)/xx.catalog
# The "function" appends the .catalog suffix and prepends the
# $(CATALOGS_DIR)/ path.
define LOCALES_LIST_TO_CATALOGS
	$(addprefix $(CATALOGS_DIR)/, $(addsuffix .catalog, $(foreach lang, $(LOCALES), $(lang))))
endef

CATALOGS = $(LOCALES_LIST_TO_CATALOGS)

# Define the actual work to be done.
default: $(TARGET)

$(TARGET):	$(OBJ_DIR) $(OBJS) $(RSRCS)
	$(BUILD_LINE)
	$(DO_RSRCS)
	$(MIMESET) -f "$@"

# Create OBJ_DIR if it doesn't exist.
$(OBJ_DIR)::
	@[ -d $(OBJ_DIR) ] || mkdir $(OBJ_DIR) >/dev/null 2>&1

# Create the localization sources directory if it doesn't exist.
$(CATKEYS_DIR)::
	@[ -d $(CATKEYS_DIR) ] || mkdir $(CATKEYS_DIR) >/dev/null 2>&1

# Create the localization data directory if it doesn't exist.
$(CATALOGS_DIR):: $(OBJ_DIR)
	@[ -d $(CATALOGS_DIR) ] || mkdir $(CATALOGS_DIR) >/dev/null 2>&1

# Rules to create the dependency files.
$(OBJ_DIR)/%.d : %.c
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .c:$(OBJ_DIR)/%n.o -m -f "$@" $<
$(OBJ_DIR)/%.d : %.cpp
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .cpp:$(OBJ_DIR)/%n.o -m -f "$@" $<
$(OBJ_DIR)/%.d : %.cp
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .cp:$(OBJ_DIR)/%n.o -m -f "$@" $<
$(OBJ_DIR)/%.d : %.cc
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .cc:$(OBJ_DIR)/%n.o -m -f "$@" $<
$(OBJ_DIR)/%.d : %.C
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .C:$(OBJ_DIR)/%n.o -m -f "$@" $<
$(OBJ_DIR)/%.d : %.CC
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .CC:$(OBJ_DIR)/%n.o -m -f "$@" $<
$(OBJ_DIR)/%.d : %.CPP
	mkdir -p $(OBJ_DIR); \
	mkdepend $(LOC_INCLUDES) -p .CPP:$(OBJ_DIR)/%n.o -m -f "$@" $<

-include $(DEPENDS)

# Rules to make the object files.
$(OBJ_DIR)/%.o : %.c
	$(CC) -c $< $(INCLUDES) $(CFLAGS) -o "$@"
$(OBJ_DIR)/%.o : %.cpp
	$(C++) -c $< $(INCLUDES) $(CFLAGS) -o "$@"
$(OBJ_DIR)/%.o : %.cp
	$(CC) -c $< $(INCLUDES) $(CFLAGS) -o "$@"
$(OBJ_DIR)/%.o : %.cc
	$(C++) -c $< $(INCLUDES) $(CFLAGS) -o "$@"
$(OBJ_DIR)/%.o : %.C
	$(CC) -c $< $(INCLUDES) $(CFLAGS) -o "$@"
$(OBJ_DIR)/%.o : %.CC
	$(C++) -c $< $(INCLUDES) $(CFLAGS) -o "$@"
$(OBJ_DIR)/%.o : %.CPP
	$(C++) -c $< $(INCLUDES) $(CFLAGS) -o "$@"

# Rules to compile the resource definition files.
$(OBJ_DIR)/%.rsrc : %.rdef
	cat $< | $(CC) -E $(INCLUDES) $(CFLAGS) - | grep -av '^#' | $(RESCOMP) -I $(dir $<) -o "$@" -
$(OBJ_DIR)/%.rsrc : %.RDEF
	cat $< | $(CC) -E $(INCLUDES) $(CFLAGS) - | grep -av '^#' | $(RESCOMP) -I $(dir $<) -o "$@" -

# Rule to compile localization data catalogs.
$(CATALOGS_DIR)/%.catalog : $(CATKEYS_DIR)/%.catkeys
	linkcatkeys -o "$@" -s $(APP_MIME_SIG) -l $(notdir $(basename $@)) $<

# Rule to preprocess program sources into file ready for collecting catkeys.
$(OBJ_DIR)/$(NAME).pre : $(SRCS)
	-cat $(SRCS) | $(CC) -E -x c++ $(INCLUDES) $(CFLAGS) -DB_COLLECTING_CATKEYS - | grep -av '^#' > $(OBJ_DIR)/$(NAME).pre

# Rules to collect localization catkeys.
catkeys : $(CATKEYS_DIR)/en.catkeys

$(CATKEYS_DIR)/en.catkeys : $(CATKEYS_DIR) $(OBJ_DIR)/$(NAME).pre
	collectcatkeys -s $(APP_MIME_SIG) $(OBJ_DIR)/$(NAME).pre -o $(CATKEYS_DIR)/en.catkeys

# Rule to create localization catalogs.
catalogs : $(CATALOGS_DIR) $(CATALOGS)

# Rules to handle lex/flex and yacc/bison files.
$(OBJ_DIR)/%.o: %.l
	flex $<
	$(CC) -c $(INCLUDES) $(CFLAGS) lex.yy.c -o "$@"
$(OBJ_DIR)/%.o: %.y
	bison -d -y $<
	$(CC) -c $(INCLUDES) $(CFLAGS) y.tab.c -o "$@"

# The generic "clean" command. (Deletes everything in the object folder.)
.PHONY: clean
clean:
	-rm -rf "$(OBJ_DIR)"

# Remove just the application from the object folder.
rmapp ::
	-rm -f $(TARGET)

# Make it easy to install drivers for testing.
USER_BIN_PATH := $(shell finddir B_USER_NONPACKAGED_ADDONS_DIRECTORY)/kernel/drivers/bin
USER_DEV_PATH := $(shell finddir B_USER_NONPACKAGED_ADDONS_DIRECTORY)/kernel/drivers/dev

driverinstall :: default
ifeq ($(strip $(TYPE)), DRIVER)
	copyattr --data $(TARGET) $(USER_BIN_PATH)/$(NAME)
	mkdir -p $(USER_DEV_PATH)/$(DRIVER_PATH)
	ln -sf $(USER_BIN_PATH)/$(NAME) $(USER_DEV_PATH)/$(DRIVER_PATH)/$(NAME)
endif

install :: default
ifeq ($(INSTALL_DIR), )
	@echo "No install directory specified for \"$(NAME)\" (INSTALL_DIR is empty)" >&2
else
	mkdir -p "$(INSTALL_DIR)"
	cp $(TARGET) $(INSTALL_DIR)/$(NAME)
endif

# Set the catalog installation directory if it isn't already.
CATALOG_INSTALL_DIR := $(shell finddir B_USER_NONPACKAGED_DATA_DIRECTORY)/locale/catalogs

# Rule to install localization resources catalogs.
catalogsinstall :: catalogs
	mkdir -p "$(CATALOG_INSTALL_DIR)/$(APP_MIME_SIG)"
	-cp $(CATALOGS_DIR)/*.catalog "$(CATALOG_INSTALL_DIR)/$(APP_MIME_SIG)"

# Alternate way of storing localization catalogs: bind them into the program
# executable's resources.
bindcatalogs :
	for lc in $(LOCALES); do linkcatkeys -o $(TARGET) -s $(APP_MIME_SIG) -tr -l $$lc $(CATKEYS_DIR)/$$lc.catkeys; done