X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/f9d42b20477523bf2ab2172d51e78d2a398e117f..eb5e067336c457058b5e67bf5835b778ec100019:/lib/bits.h

diff --git a/lib/bits.h b/lib/bits.h
index 856db68..e0f7c62 100644
--- a/lib/bits.h
+++ b/lib/bits.h
@@ -25,7 +25,13 @@
 #ifndef BITS_H
 #define BITS_H
 
+#if HAVE_FLS
+static inline int leftmost_bit(uint32_t n) {
+  return fls(n) - 1;
+}
+#else
 int leftmost_bit(uint32_t n);
+#endif
 
 #endif /* BITS_H */