Fix static_ndk_lib for sanitized libraries.

Test: build-ndk-prebuilts.sh with libc/libm included in the NDK
Bug: https://github.com/android-ndk/ndk/issues/272
Change-Id: Ic398f541036f6c16f7dc58b9af984c60ed948495
diff --git a/cc/library.go b/cc/library.go
index 0ed1848..9661f44 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -729,7 +729,8 @@
 	}
 
 	if Bool(library.Properties.Static_ndk_lib) && library.static() &&
-		!ctx.useVndk() && ctx.Device() {
+		!ctx.useVndk() && ctx.Device() &&
+		library.sanitize.isUnsanitizedVariant() {
 		installPath := getNdkSysrootBase(ctx).Join(
 			ctx, "usr/lib", ctx.toolchain().ClangTriple(), file.Base())
 
diff --git a/cc/sanitize.go b/cc/sanitize.go
index 1afec26..02aedc8 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -514,6 +514,12 @@
 	}
 }
 
+func (sanitize *sanitize) isUnsanitizedVariant() bool {
+	return !sanitize.isSanitizerEnabled(asan) &&
+		!sanitize.isSanitizerEnabled(tsan) &&
+		!sanitize.isSanitizerEnabled(cfi)
+}
+
 func (sanitize *sanitize) SetSanitizer(t sanitizerType, b bool) {
 	switch t {
 	case asan: