Initial commit

Makefile

@@ -0,0 +1,37 @@
+include common.mk
+
+all: server
+
+server: $(BUILD_DIR)/server/main.o
+	$(COMPILE_EXE)
+
+run: server
+	./$< $(RUN_ARGS)
+
+$(BUILD_DIR)/%.o: $(BUILD_DIR)/%.c.deps.mk
+	$(MAKE) -f $(BUILD_DIR)/$*.c.deps.mk $(MFLAGS) $(MAKEOVERRIDES) $@ $(BUILD_DIR)/$*.c.deps.mk
+
+$(BUILD_DIR)/%.c.deps.mk: $(SRC_DIR)/%.c
+	$(ENSURE_DIR)
+	echo include common.mk > $@
+	@printf '%s: ' "$@" >> $@
+	@# SIC: not `read -r`
+	@$(CPP) $(CPPFLAGS) -M $(SRC_DIR)/$*.c | { read target deps; echo "$$deps" ;} >> $@
+	@echo '	rm $@' >> $@
+	@echo '	$$(MAKE) -f Makefile $$(MFLAGS) $$(MAKEOVERRIDES) $@' >> $@
+	@printf '%s/%s' "$(BUILD_DIR)" "$(dir $*)" >> $@
+	$(CPP) $(CPPFLAGS) -M $(SRC_DIR)/$*.c >> $@
+	echo '	$(CC) -c $$< $$(CPPFLAGS) $$(CFLAGS) $$(INCPATH) -o $$@' >> $@
+
+ifneq ($(BUILD_DIR),)
+# Avoid `rm /`
+clean:
+	-rm main $(BUILD_DIR)/*.o $(BUILD_DIR)/*.deps.mk
+endif
+
+.PHONY: $(shell find $(BUILD_DIR) -name '*.deps.mk')
+.PHONY: all run clean
+
+.PRECIOUS: $(BUILD_DIR)/%.deps.mk $(shell find $(BUILD_DIR) -name '*.deps.mk')
+.SECONDARY:
+.SUFFIXES:

common.mk

@@ -0,0 +1,37 @@
+DEPS = 
+SRC_DIR = src
+BUILD_DIR = build
+
+ifdef ARCH
+	CROSS_COMPILE ?= $(ARCH)-linux-gnu-
+endif
+ifdef CROSS_COMPILE
+	# FIXME we need something between `=` and `?=` that does not respect builtins, but respects MAKEOVERRIDES
+	CC = $(CROSS_COMPILE)gcc
+	CPP = $(CROSS_COMPILE)cpp
+	CXX = $(CROSS_COMPILE)g++
+	AR = $(CROSS_COMPILE)ar
+	AS = $(CROSS_COMPILE)as
+endif
+LD ?= $(CROSS_COMPILE)ld
+NM ?= $(CROSS_COMPILE)nm
+OBJCOPY ?= $(CROSS_COMPILE)objcopy
+OBJDUMP ?= $(CROSS_COMPILE)objdump
+STRIP ?= $(CROSS_COMPILE)strip
+PKGCONFIG ?= $(CROSS_COMPILE)pkg-config
+
+CFLAGS = -Wall -Wextra
+ifdef DEBUG
+	CFLAGS += -Og -gdwarf-2
+	CPPFLAGS += -D DEBUG
+else
+	CFLAGS += -O2
+endif
+ifneq ($(strip $(DEPS)),)
+	CPPFLAGS += $(shell $(PKGCONFIG) --cflags $(DEPS))
+	LDLIBS += $(shell $(PKGCONFIG) --libs $(DEPS))
+endif
+INCPATH += -iquote $(SRC_DIR)
+ENSURE_DIR = mkdir -p $(shell dirname "$@")
+COMPILE_EXE = $(CC) $(LDFLAGS) $^ $(LOADLIBES) $(LDLIBS) -o $@
+COMPILE_DLL = $(CC) -shared $(LDFLAGS) $^ $(LOADLIBES) $(LDLIBS) -o $@

src/server/main.c

@@ -0,0 +1,12 @@
+#include "main.h"
+
+#include <stdio.h>
+
+int
+main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	printf("Hello, server!\n");
+	return 0;
+}

src/server/main.h

@@ -0,0 +1,6 @@
+#ifndef SERVER_MAIN_H_
+#define SERVER_MAIN_H_
+
+
+
+#endif /* end of include guard: SERVER_MAIN_H_ */