From b9c157b8687c3e2d0d9a40b4f5c5191e34b728d4 Mon Sep 17 00:00:00 2001
From: Kai Gunger <kgunger12@gmail.com>
Date: Thu, 25 Sep 2025 00:37:24 -0400
Subject: Improve makefile (from a college project I did)

---
 Makefile       | 41 +++++++++++++---------------
 Makefile.logic | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 22 deletions(-)
 create mode 100644 Makefile.logic

diff --git a/Makefile b/Makefile
index 0802007..b0835fd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,31 +1,28 @@
+BUILD_PROFILE = release
 
-SRC_DIR = src
-BUILD_DIR = build
-OBJ_DIR = $(BUILD_DIR)/artifacts
-INCLUDE_DIR = ./include
+.PHONY: build debug clean format install install_debug uninstall run
 
-SRCS = $(notdir $(wildcard $(SRC_DIR)/*.c))
-OBJS = $(addsuffix .o, $(basename $(SRCS)))
+build:
+	BUILD_PROFILE=$(BUILD_PROFILE) $(MAKE) -f Makefile.logic
 
-CFLAGS ?= -Werror -Wall
+debug: BUILD_PROFILE = debug
+debug: build
 
-build: build_dir $(OBJS)
-	$(CC) -shared -o $(BUILD_DIR)/libopensmarts.so $(addprefix $(OBJ_DIR)/, $(OBJS))
+clean:
+	BUILD_PROFILE=$(BUILD_PROFILE) $(MAKE) -f Makefile.logic clean
 
-install: build
-	install -m 755 ./build/libopensmarts.so /usr/lib/libopensmarts.so
-	rm -rf /usr/include/osm
-	mkdir -p /usr/include/osm
-	cp -r ./include/osm /usr/include
+format:
+	$(MAKE) -f Makefile.logic format
 
-remove:
-	rm -rf /usr/include/osm
-	rm -rf /usr/lib/libopensmarts.so
+install:
+	BUILD_PROFILE=$(BUILD_PROFILE) $(MAKE) -f Makefile.logic install
 
-%.o: $(SRC_DIR)/%.c
-	$(CC) $(CFLAGS) -c -fpic -I$(INCLUDE_DIR) -o $(BUILD_DIR)/artifacts/$@ $<
+install_debug: BUILD_PROFILE = debug
+install_debug: install
 
-build_dir:
-	mkdir -p $(BUILD_DIR)
-	mkdir -p $(OBJ_DIR)
+uninstall:
+	$(MAKE) -f Makefile.logic uninstall
+
+run:
+	$(MAKE) -f Makefile.logic run
 
diff --git a/Makefile.logic b/Makefile.logic
new file mode 100644
index 0000000..00064a7
--- /dev/null
+++ b/Makefile.logic
@@ -0,0 +1,86 @@
+# Project setup
+BUILD_PROFILE?=
+BUILD_DIR = target/$(BUILD_PROFILE)
+OBJ_DIR = artifacts
+SRC_DIR ?= ./src
+INC_DIR = ./include
+INC_SUB_NAME = opensmarts
+INC_SUB_DIR = $(INC_DIR)/$(INC_SUB_NAME)
+PROJECT_NAME = libopensmarts
+PROJECT_TYPE = lib
+SHARED=1
+
+# Objects
+NAMES = $(basename $(notdir $(wildcard $(SRC_DIR)/*.c)))
+HEADS = $(addprefix $(INC_SUB_DIR)/, $(notdir $(wildcard $(INC_SUB_DIR)/*.h)))
+SRCS = $(addsuffix .c, $(NAMES))
+OBJS = $(addsuffix .o, $(NAMES))
+
+
+# C compiler
+CC ?= gcc
+
+# Setup C flags
+CC_FLAGS_all ?= -std=c23 -Wextra -Wall -I$(INC_DIR)
+
+CC_FLAGS ?= -O2 -DNDEBUG
+CC_FLAGS += $(CC_FLAGS_all)
+CC_FLAGS_debug ?= -ggdb
+CC_FLAGS_debug += $(CC_FLAGS_all)
+
+ifeq ($(BUILD_PROFILE),debug)
+	CC_FLAGS=$(CC_FLAGS_debug)
+endif
+
+# Detect target 
+BUILD_FLAGS=$(CC_FLAGS)
+BUILD_TOOL=$(CC)
+BUILD_FILE_TYPE=
+ifeq ($(OS),Windows_NT)
+	ifeq ($(PROJECT_TYPE),lib)
+		BUILD_FLAGS+=-shared
+		BUILD_FILE_TYPE=.dll
+	else
+		BUILD_FILE_TYPE=.exe
+	endif
+else
+	ifeq ($(PROJECT_TYPE),lib)
+		ifeq ($(SHARED),1)
+			BUILD_FLAGS+=-shared
+			BUILD_FILE_TYPE=.so
+			CC_FLAGS += -fpic
+		else
+			BUILD_TOOL=ar
+			BUILD_FLAGS=-crs
+			BUILD_FILE_TYPE=.a
+		endif
+	endif
+endif
+
+# Actual makefile targets
+
+build: $(BUILD_DIR) $(addprefix $(BUILD_DIR)/$(OBJ_DIR)/, $(OBJS))
+	echo $(NAMES)
+	$(BUILD_TOOL) $(BUILD_FLAGS) -o $(BUILD_DIR)/$(PROJECT_NAME)$(BUILD_FILE_TYPE) $(addprefix $(BUILD_DIR)/$(OBJ_DIR)/, $(OBJS))
+
+clean:
+	rm -rf $(BUILD_DIR)
+
+install: build
+	install -m 755 $(BUILD_DIR)/$(PROJECT_NAME)$(BUILD_FILE_TYPE) /usr/lib/$(BUILD_PREFIX)$(PROJECT_NAME)$(BUILD_FILE_TYPE)
+	cp -rf $(INC_SUB_DIR) /usr/include
+
+remove:
+	rm -rf /usr/include/$(INC_SUB_NAME)
+	rm -rf /usr/lib/$(PROJECT_NAME)$(BUILD_FILE_TYPE)
+
+$(BUILD_DIR)/$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(HEADS)
+	$(CC) $(CC_FLAGS) -c -o $@ $<
+
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+	mkdir -p $(BUILD_DIR)/$(OBJ_DIR)
+
+format:
+	echo $(addprefix $(SRC_DIR)/, $(SRCS)) $(HEADS) | xargs clang-format --style=file -i
+
-- 
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