Without this change, the build breaks with clang:
libgit/ref-filter.pic.o: multiple definition of 'filter_refs'
libgit/commit-reach.pic.o: previous definition here
Signed-off-by: Jonathan Nieder <redacted>
Signed-off-by: Junio C Hamano <redacted>
#include "decorate.h"
#include "prio-queue.h"
#include "tree.h"
-#include "ref-filter.c"
+#include "ref-filter.h"
#include "revision.h"
#include "tag.h"
#include "commit-reach.h"