fix: #2927 api doc generation fails under out of source build.

Signed-off-by: yosukesan <y.otsuki30@gmail.com>

diff --git a/doc/api/Makefile.am b/doc/api/Makefile.am
index e72f5266aed39a94b7ee7faa11a50efa2e81b534..4fee21ace49159207c831eddb9d8fa0c3f288c94 100644 (file)
--- a/doc/api/Makefile.am
+++ b/doc/api/Makefile.am
@@ -2,7 +2,7 @@ EXTRA_DIST = Doxyfile
 
 if ENABLE_API_DOCS
 html: Doxyfile
-       doxygen
+       doxygen $<
 endif
 
 .PHONY: html