From b2bb2dd65a6c6f13fc46afb50ce7d079ecbb5f7a Mon Sep 17 00:00:00 2001
From: xgopilot <noreply@goplus.org>
Date: Thu, 26 Feb 2026 02:22:11 +0000
Subject: [PATCH] feat: add lodepng formula for lvandeve/lodepng

Add llar build formula for lodepng (PNG encoder/decoder in C/C++,
no external dependencies). Compiles lodepng.cpp into a static
library using g++ and ar, and installs the header.

Version: 20260119 (date-based versioning)

Generated with [codeagent](https://github.com/qbox/codeagent)
Co-authored-by: MeteorsLiu <17515813+MeteorsLiu@users.noreply.github.com>
---
 lvandeve/lodepng/20260119/Lodepng_llar.gox | 41 ++++++++++++++++++++++
 lvandeve/lodepng/versions.json             |  4 +++
 2 files changed, 45 insertions(+)
 create mode 100644 lvandeve/lodepng/20260119/Lodepng_llar.gox
 create mode 100644 lvandeve/lodepng/versions.json

diff --git a/lvandeve/lodepng/20260119/Lodepng_llar.gox b/lvandeve/lodepng/20260119/Lodepng_llar.gox
new file mode 100644
index 0000000..1763b16
--- /dev/null
+++ b/lvandeve/lodepng/20260119/Lodepng_llar.gox
@@ -0,0 +1,41 @@
+id "lvandeve/lodepng"
+
+fromVer "20260119"
+
+onBuild (ctx, proj, out) => {
+	installDir, err := ctx.outputDir()
+	if err != nil {
+		out.addErr err
+		return
+	}
+
+	srcDir := ctx.SourceDir
+	libDir := "${installDir}/lib"
+	incDir := "${installDir}/include"
+
+	exec "mkdir", "-p", libDir, incDir
+	if lastErr != nil {
+		out.addErr lastErr
+		return
+	}
+
+	exec "g++", "-O2", "-c", "${srcDir}/lodepng.cpp", "-o", "${srcDir}/lodepng.o"
+	if lastErr != nil {
+		out.addErr lastErr
+		return
+	}
+
+	exec "ar", "rcs", "${libDir}/liblodepng.a", "${srcDir}/lodepng.o"
+	if lastErr != nil {
+		out.addErr lastErr
+		return
+	}
+
+	exec "cp", "${srcDir}/lodepng.h", "${incDir}/lodepng.h"
+	if lastErr != nil {
+		out.addErr lastErr
+		return
+	}
+
+	out.setMetadata "-llodepng"
+}
diff --git a/lvandeve/lodepng/versions.json b/lvandeve/lodepng/versions.json
new file mode 100644
index 0000000..5ee0f40
--- /dev/null
+++ b/lvandeve/lodepng/versions.json
@@ -0,0 +1,4 @@
+{
+	"path": "lvandeve/lodepng",
+	"deps": {}
+}