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-rw-r--r--libc/include/android/versioning.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libc/include/android/versioning.h b/libc/include/android/versioning.h
index cab115602..6e4b8ab1d 100644
--- a/libc/include/android/versioning.h
+++ b/libc/include/android/versioning.h
@@ -17,6 +17,10 @@
#ifndef ANDROID_VERSIONING_H
#define ANDROID_VERSIONING_H
+#ifndef __STRING
+#define __STRING(x) #x
+#endif
+
#define __INTRODUCED_IN(api_level) __attribute__((annotate("introduced_in=" __STRING(api_level))))
#define __INTRODUCED_IN_FUTURE __attribute__((annotate("introduced_in_future")))
#define __DEPRECATED_IN(api_level) __attribute__((annotate("deprecated_in=" __STRING(api_level))))