prevent duplicate symbols (fix OSX compilation)

diff --git a/libs/pbd/pbd/natsort.h b/libs/pbd/pbd/natsort.h
index c50a6f288bed27d0800ebaed7d056e2dc132da5e..31c1dd7bcd4bfe70be12f032606208726660ea5a 100644 (file)
--- a/libs/pbd/pbd/natsort.h
+++ b/libs/pbd/pbd/natsort.h
@@ -24,7 +24,7 @@
 
 namespace PBD {
 
-bool
+inline bool
 naturally_less (const char* a, const char* b)
 {
        const char* d_a = NULL;