perf Documentation: Fix out-of-tree asciidoctor man page generation

The dependency for the man page rule using asciidoctor incorrectly
specifies a source file in $(OUTPUT).  When building out-of-tree, the
source file is not found, resulting in a fall-back to the following rule
which uses xmlto.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180916151704.GF4765@decadent.org.uk
Fixes: ffef80ecf89f ("perf Documentation: Support for asciidoctor")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index 42261a9b280e3e11721274b76503a9db1ebeac3a..ac841bc5c35bc4950f918ac304fc329e7dd1c7c2 100644 (file)
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -280,7 +280,7 @@ $(MAN_HTML): $(OUTPUT)%.html : %.txt
        mv $@+ $@
 
 ifdef USE_ASCIIDOCTOR
-$(OUTPUT)%.1 $(OUTPUT)%.5 $(OUTPUT)%.7 : $(OUTPUT)%.txt
+$(OUTPUT)%.1 $(OUTPUT)%.5 $(OUTPUT)%.7 : %.txt
        $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
        $(ASCIIDOC) -b manpage -d manpage \
                $(ASCIIDOC_EXTRA) -aperf_version=$(PERF_VERSION) -o $@+ $< && \