Handle the version_script property.

Doesn't work when depends on arch/target/etc., but good enough for
libdl_android.

Bug: 186650430
Test: Presubmits.
Change-Id: Ib0facb41a89454717c74663e5e078aedd33d1b9c
diff --git a/bp2build/build_conversion.go b/bp2build/build_conversion.go
index 08790d1..bddc524 100644
--- a/bp2build/build_conversion.go
+++ b/bp2build/build_conversion.go
@@ -519,9 +519,7 @@
 	case reflect.Struct:
 		valueIsZero := true
 		for i := 0; i < value.NumField(); i++ {
-			if value.Field(i).CanSet() {
-				valueIsZero = valueIsZero && isZero(value.Field(i))
-			}
+			valueIsZero = valueIsZero && isZero(value.Field(i))
 		}
 		return valueIsZero
 	case reflect.Ptr:
diff --git a/bp2build/cc_library_conversion_test.go b/bp2build/cc_library_conversion_test.go
index aa8200b..0551a18 100644
--- a/bp2build/cc_library_conversion_test.go
+++ b/bp2build/cc_library_conversion_test.go
@@ -277,6 +277,31 @@
     static_deps_for_shared = [":b"],
 )`},
 		},
+		{
+			description:                        "cc_library non-configured version script",
+			moduleTypeUnderTest:                "cc_library",
+			moduleTypeUnderTestFactory:         cc.LibraryFactory,
+			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
+			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
+			dir:                                "foo/bar",
+			filesystem: map[string]string{
+				"foo/bar/Android.bp": `
+cc_library {
+    name: "a",
+    srcs: ["a.cpp"],
+    version_script: "v.map",
+    bazel_module: { bp2build_available: true },
+}
+`,
+			},
+			bp: soongCcLibraryPreamble,
+			expectedBazelTargets: []string{`cc_library(
+    name = "a",
+    copts = ["-Ifoo/bar"],
+    srcs = ["a.cpp"],
+    version_script = "v.map",
+)`},
+		},
 	}
 
 	dir := "."
diff --git a/bp2build/configurability.go b/bp2build/configurability.go
index 52afb55..050679b 100644
--- a/bp2build/configurability.go
+++ b/bp2build/configurability.go
@@ -30,6 +30,11 @@
 	return value, archSelects, osSelects
 }
 
+func getLabelValue(label bazel.LabelAttribute) (reflect.Value, selects, selects) {
+	value := reflect.ValueOf(label.Value)
+	return value, nil, nil
+}
+
 func getLabelListValues(list bazel.LabelListAttribute) (reflect.Value, selects, selects) {
 	value := reflect.ValueOf(list.Value.Includes)
 	if !list.HasConfigurableValues() {
@@ -54,12 +59,13 @@
 func prettyPrintAttribute(v bazel.Attribute, indent int) (string, error) {
 	var value reflect.Value
 	var archSelects, osSelects selects
-
 	switch list := v.(type) {
 	case bazel.StringListAttribute:
 		value, archSelects, osSelects = getStringListValues(list)
 	case bazel.LabelListAttribute:
 		value, archSelects, osSelects = getLabelListValues(list)
+	case bazel.LabelAttribute:
+		value, archSelects, osSelects = getLabelValue(list)
 	default:
 		return "", fmt.Errorf("Not a supported Bazel attribute type: %s", v)
 	}