Demo static lib

libadd/makefile

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+# Makefile for the add library
+# Builds a static library from the add.c file
+
+# Library name
+LIB = libadd.a
+
+# Compiler
+CC = gcc
+
+# Compiler flags
+CFLAGS = -Wall -Werror -Wextra -pedantic
+CFLAGS += -std=c99 -O3
+
+# Source file
+SRC = add.c
+
+# Object file
+OBJ = $(SRC:.c=.o)
+
+# Build the library
+$(LIB): $(OBJ)
+	ar rcs $(LIB) $(OBJ)
+
+# Build the object file
+$(OBJ): $(SRC)
+	$(CC) $(CFLAGS) -c $(SRC)
+
+format:
+	clang-format -i *.c include/*.h
+
+# Clean the object files
+clean:
+	rm -f $(OBJ)
+	rm -f $(LIB)