From 0aa8e478e70ee12555c5a493c9a2c22a46c8d939 Mon Sep 17 00:00:00 2001
From: heck <heck@pep.foundation>
Date: Fri, 20 Sep 2024 20:59:56 +0200
Subject: [PATCH] Add GNU make based build system

---
 Makefile           | 13 +++++++++++++
 Makefile.conf      | 35 +++++++++++++++++++++++++++++++++++
 build.conf.example | 13 +++++++++++++
 src/Makefile       | 19 +++++++++++++++++++
 4 files changed, 80 insertions(+)
 create mode 100644 Makefile
 create mode 100644 Makefile.conf
 create mode 100644 build.conf.example
 create mode 100644 src/Makefile

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..5c6a46a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,13 @@
+.PHONY: all flash clean
+
+all: compile flash
+
+compile:
+	$(MAKE) -C src
+
+flash:
+	$(MAKE) -C src program
+
+clean:
+	$(MAKE) -C src clean
+
diff --git a/Makefile.conf b/Makefile.conf
new file mode 100644
index 0000000..a08f091
--- /dev/null
+++ b/Makefile.conf
@@ -0,0 +1,35 @@
+HERE:=$(dir $(lastword $(MAKEFILE_LIST)))
+
+# Project Name
+TARGET?=blink
+
+# Configure for debugging
+# common configurations:
+# use DEBUG = 1 and OPT = -Og for debugging
+# or DEBUG = 0 and OPT = -O3 for performance
+DEBUG=0
+OPT=-O3
+
+# (optional) Includes FatFS source files within project.
+#USE_FATFS = 1
+
+# Relative to dir 'src'
+LIBDAISY_DIR=../../heck_libDaisyWrong
+DAISYSP_DIR=../../heck_DaisySPWrong
+
+ CXXFLAGS+=-Wall -Wno-unused -Wno-reorder-ctor -Wno-switch
+
+######### Overrides from build.conf #########
+-include $(HERE)build.conf
+
+ifneq (,$(findstring g++,$(CXX)))
+    CXXFLAGS+=-fdiagnostics-color=always
+else ifneq (,$(findstring clang,$(CXX)))
+    CXXFLAGS+=-fcolor-diagnostics
+endif
+
+ifeq ($(DEBUG),1)
+    CXXFLAGS+=-g -O0
+else
+    CXXFLAGS+=-DNDEBUG=1 -O3
+endif
diff --git a/build.conf.example b/build.conf.example
new file mode 100644
index 0000000..2c71c04
--- /dev/null
+++ b/build.conf.example
@@ -0,0 +1,13 @@
+# Build config
+# also, infos for the build system about the dev environment
+
+# TARGET sets the program to compile and flash
+# the name of the main cxx file without the prefix 'main_'
+TARGET=blink
+#TARGET=testtone
+
+DEBUG=0
+
+# Daisy dependencies relative to dir 'src'
+LIBDAISY_DIR=../../heck_libDaisy
+DAISYSP_DIR=../../heck_DaisySP
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..e527aa0
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,19 @@
+include ../Makefile.conf
+
+ALL_SRC=$(wildcard *.cc)
+TARGET_SRC=main_$(TARGET).cc
+MODULES_SRC=$(filter-out main_%,$(ALL_SRC))
+CXX_SRC=$(MODULES_SRC) $(TARGET_SRC)
+
+$(info CXXFLAGS: $(CXXFLAGS))
+$(info SOURCES: $(ALL_SRC))
+$(info MODULES: $(MODULES_SRC))
+$(info TARGET_SRC: $(TARGET_SRC))
+$(info CXX_SRC: $(CXX_SRC))
+
+# libDaisy Makefile variables
+CPPFLAGS=$(CXXFLAGS)
+SYSTEM_FILES_DIR=$(LIBDAISY_DIR)/core
+CPP_SOURCES=$(CXX_SRC)
+
+include $(SYSTEM_FILES_DIR)/Makefile