# The common submakefile used for building all kinds of targets.

ifdef .MODULE
# If this is the first target in this module, add it to global variables
ifeq ($(findstring $(.MODULE),$(MODULES)),)
.PHONY: $(.MODULE)
MODULES += $(.MODULE)
ifdef .MDESC
DO.HELP.MODULES += $(call ECHO,    $(.MODULE) - $(.MDESC))$(NL)
.MDESC :=
endif # def .MDESC
ifdef .MDEP
$(.MODULE): $(.MDEP)
.MDEP :=
endif # def .MDEP
endif # eq ($(findstring $(.MODULE),$(MODULES)),)
endif # def .MODULE

# Canonicalize target kind to the form objectformat-threadness{-profiling}
ifneq ($(findstring aout,$(.TKIND)),)
.tmp := aout
else
.tmp := omf
endif # neq ($(findstring aout,$(.TKIND)),)
ifneq ($(findstring prof,$(.TKIND)),)
.tmp += prof
endif # neq ($(findstring prof,$(.TKIND)),)
ifneq ($(findstring log,$(.TKIND)),)
.tmp += log
endif # neq ($(findstring log,$(.TKIND)),)
.TKIND := $(.tmp)
ifdef .TKVAR
.TKIND.DIR := $(subst $(SPACE),-,$(.TKIND))/$(.TKVAR)/
else
.TKIND.DIR := $(subst $(SPACE),-,$(.TKIND))/
endif
.DIRS :=

ifdef .TARGET

# .TARG is same as .TARGET except that it has a st/ or mt/ prefix
.TARG := $(.TKIND.DIR)$(.TARGET)
.DIRS += $.$(.TKIND.DIR)

ifdef .INSDIR
ifndef .NOINST
INS.FILES += $(INS)$(.INSDIR)$(.TARGET)
$(INS)$(.INSDIR)$(.TARGET): $.$(.TARG)
	$(call CP,$<,$@)
endif	
endif # def .INSDIR

# We know how to create dependency files for .c and .cpp files
.tmp := $(strip $(filter %.c,$(.TSRC)) $(filter %.cpp,$(.TSRC)))
ifdef .tmp
# Read the dependency file
-include $.$(.TKIND.DIR)dep-$(.TARGET).smak

TARGDEPEND += $.$(.TKIND.DIR)dep-$(.TARGET).smak

ifdef BUILD_DEPS
# How to build the dependency file
$.$(.TKIND.DIR)dep-$(.TARGET).smak: $(.tmp)
	$(DO.DEPS)
endif # BUILD_DEPS
endif # def .tmp

endif # def .TARGET

# If module has any source files, find respective object file names
# and directories where they will be built
ifdef .TSRC

.OBJS := $(addprefix $.,$(call OBJFILE,$(.TSRC)))
.DIRS += $(sort $(dir $(.OBJS)))

# Remove the names of files for which we already generated build rules
# so that we won't generate same rule twice. In general this is not very
# correct since two targets may want a object file compiled with different
# options (e.g. .TCF) but we assume that the developer knows what's doing.
ifndef BUILD.RULES
# We need BUILD.RULES to be a expand-value-on-assignment type variable,
# rather than expand-value-on-reference.
BUILD.RULES :=
endif
.TSRC := $(filter-out $(BUILD.RULES),$(join $(addsuffix :,$(.OBJS)),$(.TSRC)))
BUILD.RULES += $(.TSRC)
.TSRC := $(filter-out $(.OBJS),$(subst :, ,$(.TSRC)))

# Generate compilation rules for C files
$(foreach x,$(filter %.c,$(.TSRC)), $(eval $(call def_compile_c,$(x))))

# Generate compilation rules for S files
$(foreach x,$(filter %.s,$(.TSRC)), $(eval $(call def_compile_S,$(x))))

# Generate compilation rules for asm files
$(foreach x,$(filter %.asm,$(.TSRC)), $(eval $(call def_compile_asm,$(x))))

endif # def .TSRC

# Add target directories to module dependencies and to overall list of dirs
ifneq ($(.DIRS),)
TARGDIRS += $(.DIRS)
ifdef .MODULE
$(.MODULE): $(.DIRS)
endif # def .MODULE
endif # neq ($(.DIRS),)

# Add the target to the list of module dependencies
ifdef .TARGET
$(.MODULE): $.$(.TARG)
endif # def .TARGET

# Replace the special sequence in .TDEP @O@ with $.$(.TKIND.DIR)
.DEPS := $(subst @O@,$.$(.TKIND.DIR),$(.TDEP))