makefile added

makefile

@@ -0,0 +1,37 @@
+# Copyright (C) 2026 by Prof. Dr. Ruben Carlo Benante
+# levenshtein library — makefile
+#
+# Usage:
+#   make              build both: cmp11sht (CLI) and test_lib11sht
+#   make cmp11sht     build only the CLI
+#   make test         build + run the stress test suite
+#   make clean        remove built binaries
+#
+# Uses clang with strict warnings to catch bugs early.
+
+CC      = clang
+CFLAGS  = -std=gnu17 -O2 -g \
+          -Wall -Wextra -Wpedantic \
+          -Wshadow -Wpointer-arith -Wcast-qual -Wundef \
+          -Wstrict-prototypes -Wmissing-prototypes \
+          -fdiagnostics-color=always
+LDLIBS  = -lm
+
+LIB_SRC = lib11sht.c
+LIB_HDR = lib11sht.h
+
+.PHONY: all test clean
+
+all: cmp11sht test_lib11sht
+
+cmp11sht: cmp11sht.c $(LIB_SRC) $(LIB_HDR)
+	$(CC) $(CFLAGS) cmp11sht.c $(LIB_SRC) $(LDLIBS) -o $@
+
+test_lib11sht: test_lib11sht.c $(LIB_SRC) $(LIB_HDR)
+	$(CC) $(CFLAGS) test_lib11sht.c $(LIB_SRC) $(LDLIBS) -o $@
+
+test: test_lib11sht
+	./test_lib11sht
+
+clean:
+	rm -f cmp11sht test_lib11sht