From 319f10b1f20170adf7efa05938b6bb23584c4729 Mon Sep 17 00:00:00 2001
From: Dave Tang <davetingpongtang@gmail.com>
Date: Mon, 22 Jun 2026 20:12:06 +0900
Subject: GNU Make notes

---
 examples/visual/Makefile  |  28 ++++++++++++++++++++++++++++
 examples/visual/README.md |  35 +++++++++++++++++++++++++++++++++++
 examples/visual/out.png   | Bin 0 -> 26851 bytes
 3 files changed, 63 insertions(+)
 create mode 100644 examples/visual/Makefile
 create mode 100644 examples/visual/README.md
 create mode 100644 examples/visual/out.png

(limited to 'examples/visual')

diff --git a/examples/visual/Makefile b/examples/visual/Makefile
new file mode 100644
index 0000000..6352ecb
--- /dev/null
+++ b/examples/visual/Makefile
@@ -0,0 +1,28 @@
+# Simple Makefile Example
+
+# Default target
+all: build test clean
+
+# Build target
+build: compile link
+	@echo "Building the project..."
+
+# Compile target
+compile: init
+	@echo "Compiling source files..."
+
+# Link target
+link: init
+	@echo "Linking objects..."
+
+# Test target
+test: build
+	@echo "Running tests..."
+
+# Clean target
+clean:
+	@echo "Cleaning up..."
+
+# Init target (independent target)
+init:
+	@echo "Initializing the build environment..."
diff --git a/examples/visual/README.md b/examples/visual/README.md
new file mode 100644
index 0000000..f497901
--- /dev/null
+++ b/examples/visual/README.md
@@ -0,0 +1,35 @@
+# README
+
+Creates a graph of dependencies from GNU-Make using [make2graph](https://github.com/lindenb/makefile2graph).
+
+```console
+git clone https://github.com/lindenb/makefile2graph.git
+cd makefile2graph
+make
+./make2graph --version
+```
+```
+1.5.0
+```
+
+Install `graphviz`.
+
+```console
+sudo apt update
+sudo apt install -y graphviz
+```
+
+`make`
+
+* -B, --always-make
+    * Unconditionally make all targets.
+* -n, --just-print, --dry-run, --recon
+    * Print the commands that would be executed, but do not execute them (except in certain circumstances).
+* -d
+    * Print debugging information in addition to normal processing.
+
+```console
+make -Bnd | ./make2graph | dot -Tpng -o out.png
+```
+
+![](out.png)
diff --git a/examples/visual/out.png b/examples/visual/out.png
new file mode 100644
index 0000000..becc47e
Binary files /dev/null and b/examples/visual/out.png differ
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