snek.defs

SNEK_LOCAL_VPATH ?= .

vpath %.c $(SNEK_LOCAL_VPATH):$(SNEK_ROOT)
vpath %.S $(SNEK_LOCAL_VPATH):$(SNEK_ROOT)
vpath %.h $(SNEK_LOCAL_VPATH):$(SNEK_ROOT)
vpath %.ll $(SNEK_LOCAL_VPATH):$(SNEK_ROOT)
vpath %.py $(SNEK_LOCAL_VPATH):$(SNEK_ROOT)
vpath %.builtin $(SNEK_LOCAL_VPATH):$(SNEK_ROOT)

SNEK_VERSION = 1.10
SNEK_DATE = 2024-11-28

SNEK_VERSION_DASH = $(shell echo $(SNEK_VERSION) | sed 's/\./-/g')

SNEK_CLANG = $(shell if $(CC) --version | grep -q -i 'llvm\|clang'; then echo yes; else echo no; fi)

SNEK_PORTS = $(SNEK_ROOT)/ports
SNEK_HOSTS = $(SNEK_ROOT)/hosts
SNEK_DOC = $(SNEK_ROOT)/doc
SNEK_LESSONS = $(SNEK_DOC)/lessons
SNEK_DOC_UTIL = $(SNEK_DOC)/util

SNEK_SRC = \
	snek-builtin.c \
	snek-code.c \
	snek-exec.c \
	snek-error.c \
	snek-frame.c \
	snek-func.c \
	snek-lex.c \
	snek-list.c \
	snek-memory.c \
	snek-name.c \
	snek-parse.c \
	snek-poly.c \
	snek-print.c \
	snek-string.c \
	$(SNEK_LOCAL_SRC)

SNEK_EXT_SRC = \
	snek-io.c \
	snek-math.c \
	snek-input.c \
	snek-temperature.c

SNEK_SRC_S = \
	$(SNEK_LOCAL_SRC_S)

SNEK_OBJ=$(notdir $(SNEK_SRC:.c=.o)) $(notdir $(SNEK_SRC_S:.S=.o))

SNEK_RAW_INC = \
	$(SNEK_ROOT)/snek.h

SNEK_BUILT_INC = \
	snek-gram.h \
	snek-builtin.h

SNEK_INC = \
	$(SNEK_RAW_INC) \
	$(SNEK_BUILT_INC) \
	$(SNEK_LOCAL_INC)

SNEK_EXT_INC = \
	$(SNEK_ROOT)/snek-io.h

SNEK_BUILTINS = \
	$(SNEK_ROOT)/snek-keyword.builtin \
	$(SNEK_ROOT)/snek-base.builtin \
	$(SNEK_LOCAL_BUILTINS)

SNEK_EXT_BUILTINS = \
	$(SNEK_ROOT)/snek-math.builtin \
	$(SNEK_ROOT)/snek-temperature.builtin

SNEK_MOST_WARNINGS =  \
	-Wall \
	-Wcast-align \
	-Wextra \
	-Wpointer-arith \
	-Wstrict-prototypes \
	-Wmissing-prototypes \
	-Wmissing-declarations \
	-Wnested-externs \
	-fstrict-flex-arrays=0 \
	--strict-flex-arrays=3 \
	-Wshadow

ifeq ($(SNEK_CLANG),yes)
SNEK_MOST_WARNINGS += -Warray-bounds
else
SNEK_MOST_WARNINGS += -Warray-bounds=2
endif

SNEK_WARNINGS = \
	$(SNEK_MOST_WARNINGS) \
	-Wimplicit-fallthrough

SNEK_BASE_CFLAGS = \
	-D_DEFAULT_SOURCE \
	$(SNEK_PACKAGE_CFLAGS) \
	-I$(SNEK_ROOT) $(SNEK_LOCAL_CFLAGS) \
	-DSNEK_VERSION='"$(SNEK_VERSION)"'

LOLA_FLAGS ?=

SNEK_GLOBAL_ALIAS ?= y
SNEK_GLOBAL_NAMES ?= math random time

SNEK_BUILTIN_FLAGS += $^ $(foreach GL,$(SNEK_GLOBAL_NAMES),--global $(GL)) 

ifeq ($(SNEK_GLOBAL_ALIAS),y)
	SNEK_BUILTIN_FLAGS += --alias
endif

ifdef SNEK_NO_SLICE
SNEK_BASE_CFLAGS += -DSNEK_NO_SLICE
SNEK_LOLA_FLAGS += -DSNEK_NO_SLICE
else
SNEK_LOLA_FLAGS += -DSNEK_SLICE
endif

ifdef SNEK_NO_DICT
SNEK_BASE_CFLAGS += -DSNEK_NO_DICT
SNEK_LOLA_FLAGS += -DSNEK_NO_DICT
else
SNEK_LOLA_FLAGS += -DSNEK_DICT
endif

ifdef SNEK_NO_FILE
SNEK_BASE_CFLAGS += -DSNEK_NO_FILE
endif

# We need a special version until debian's avr-libc package is updated
ATMEGA4809_LIBC?=/opt/avr-libc

SNEK_LDFLAGS = -Wl,--gc-sections 

SNEK_CFLAGS ?= $(SNEK_WARNINGS) $(SNEK_BASE_CFLAGS)

SNEK_SED = sed \
	-e 's;@ICONDIR@;$(ICONDIR);g' \
	-e 's;@BINDIR@;$(BINDIR);g' \
	-e 's;@SNEKLIB@;$(SNEKLIB);' \
	-e 's;@SHAREDIR@;$(SHAREDIR);' \
	-e 's/@SNEK_VERSION@/$(SNEK_VERSION)/' \
	-e 's/@SNEK_VERSION_DASH@/$(SNEK_VERSION_DASH)/' \
	-e 's;@SNEK_ROOT@;$(SNEK_ROOT);' \
	-e 's/@SNEK_DATE@/$(SNEK_DATE)/'

.DEFAULT_GOAL = all

ifndef SNEK_NO_BUILD_TARGETS

snek-gram.h: $(SNEK_ROOT)/snek-gram.ll
	lola $(SNEK_LOLA_FLAGS) -o $@ $^

snek-builtin.h: $(SNEK_ROOT)/snek-builtin.py $(SNEK_BUILTINS)
	python3 $(SNEK_BUILTIN_FLAGS) -o $@

clean::
	rm -f snek-gram.h snek-builtin.h $(SNEK_OBJ)

$(SNEK_OBJ): $(SNEK_INC)

ifndef quiet

V?=0
# The user has explicitly enabled quiet compilation.
ifeq ($(V),0)
quiet = @printf "  $1 $2 $@\n"; $($1)
endif
# Otherwise, print the full command line.
quiet ?= $($1)

.c.o:
	$(call quiet,CC) -c $(CFLAGS) -o $@ $<

.S.o:
	$(call quiet,CC) -c $(CFLAGS) -o $@ $<

endif

endif