diff --git a/danfis/libccd/v2.1/ccd_llar.gox b/danfis/libccd/v2.1/ccd_llar.gox
new file mode 100644
index 0000000..3549d3f
--- /dev/null
+++ b/danfis/libccd/v2.1/ccd_llar.gox
@@ -0,0 +1,108 @@
+import (
+	"os"
+	"path/filepath"
+	"slices"
+	"strings"
+)
+
+const consumerSource = `#include <ccd/ccd.h>
+
+int main(void) {
+    ccd_t ccd;
+    CCD_INIT(&ccd);
+    return 0;
+}
+`
+
+id "danfis/libccd"
+
+fromVer "v2.1"
+
+defaults {
+	"shared": "OFF",
+	"fPIC": "ON",
+	"enable_double_precision": "OFF",
+}
+
+filter => {
+	for name, values in target.options {
+		if name != "shared" && name != "fPIC" && name != "enable_double_precision" {
+			return false
+		}
+		for value in values {
+			if value != "ON" && value != "OFF" {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+onBuild ctx => {
+	installDir := ctx.outputDir
+	shared := target.options["shared"][0] == "ON"
+	fPIC := target.options["fPIC"][0] == "ON"
+	enableDoublePrecision := target.options["enable_double_precision"][0] == "ON"
+
+	c := cmake.new(ctx.SourceDir, filepath.join(ctx.SourceDir, "_build"), installDir)
+	c.define "CMAKE_INSTALL_LIBDIR", "lib"
+	c.define "CMAKE_POLICY_VERSION_MINIMUM", "3.5"
+	c.defineBool "BUILD_DOCUMENTATION", false
+	c.defineBool "BUILD_SHARED_LIBS", shared
+	c.defineBool "CMAKE_POSITION_INDEPENDENT_CODE", fPIC
+	c.defineBool "ENABLE_DOUBLE_PRECISION", enableDoublePrecision
+	c.defineBool "CCD_HIDE_ALL_SYMBOLS", !shared
+	c.configure
+	c.build
+	c.install
+
+	licenseDir := filepath.join(installDir, "licenses")
+	os.mkdirAll(licenseDir, 0o755)!
+	os.writeFile(filepath.join(licenseDir, "BSD-LICENSE"), os.readFile(filepath.join(ctx.SourceDir, "BSD-LICENSE"))!, 0o644)!
+
+	// Upstream installs ccd.pc with CMAKE_INSTALL_PREFIX-expanded paths.
+	// Keep its verified flags while making the installed metadata relocatable.
+	pcPath := filepath.join(installDir, "lib", "pkgconfig", "ccd.pc")
+	pc := string(os.readFile(pcPath)!)
+	pc = strings.replace(pc, "prefix="+installDir, "prefix=$${pcfiledir}/../..", 1)
+	pc = strings.replace(pc, "exec_prefix="+installDir, "exec_prefix=$${prefix}", 1)
+	pc = strings.replace(pc, "libdir="+filepath.join(installDir, "lib"), "libdir=$${prefix}/lib", 1)
+	pc = strings.replace(pc, "includedir="+filepath.join(installDir, "include"), "includedir=$${prefix}/include", 1)
+	lines := pc.split("\n")
+	if !shared {
+		for i, line in lines {
+			if line.hasPrefix("Cflags:") && !strings.contains(line, "CCD_STATIC_DEFINE") {
+				lines[i] = line + " -DCCD_STATIC_DEFINE"
+			}
+			if slices.contains(target.require["os"], "linux") && line.hasPrefix("Libs:") && !strings.contains(line, " -lm") {
+				lines[i] = line + " -lm"
+			}
+		}
+	}
+	os.writeFile(pcPath, []byte(strings.join(lines, "\n")), 0o644)!
+
+	pkgconfig.use installDir
+	ctx.setMetadata pkgconfig.lookup("ccd")!
+}
+
+onTest ctx => {
+	installDir := ctx.outputDir
+	testDir := filepath.join(ctx.SourceDir, "_llar_consumer")
+	os.mkdirAll(testDir, 0o755)!
+
+	sourcePath := filepath.join(testDir, "consumer.c")
+	os.writeFile(sourcePath, []byte(consumerSource), 0o644)!
+
+	pkgconfig.use installDir
+	flagsFile := filepath.join(testDir, "ccd.flags")
+	os.writeFile(flagsFile, []byte(pkgconfig.lookup("ccd")!), 0o644)!
+
+	binary := filepath.join(testDir, "consumer")
+	cc! sourcePath, "-o", binary, "@"+flagsFile
+
+	if target.options["shared"][0] == "ON" {
+		os.setenv("LD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+		os.setenv("DYLD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+	}
+	exec! binary
+}
diff --git a/danfis/libccd/versions.json b/danfis/libccd/versions.json
new file mode 100644
index 0000000..c3bfb07
--- /dev/null
+++ b/danfis/libccd/versions.json
@@ -0,0 +1,4 @@
+{
+	"path": "danfis/libccd",
+	"deps": {}
+}