Document how to tell if your build is fixed-point.

This way we won't break this by accident.

1 files changed, 4 insertions, 0 deletions

diff --git a/include/opus_defines.h b/include/opus_defines.h
index 32b7c976..41e81f08 100644
--- a/include/opus_defines.h
+++ b/include/opus_defines.h
@@ -714,6 +714,10 @@ OPUS_EXPORT const char *opus_strerror(int error);
 
 /** Gets the libopus version string.
   *
+  * Applications may look for the substring "-fixed" in the version string to
+  * determine whether they have a fixed-point or floating-point build at
+  * runtime.
+  *
   * @returns Version string
   */
 OPUS_EXPORT const char *opus_get_version_string(void);