[PATCH] perf report: fix compile failure on ppc, 32-bit

[David Ahern <dsahern@gmail.com>]

Builds currently fail with:
    CC /tmp/pbuild/builtin-report.o
cc1: warnings being treated as errors
builtin-report.c: In function ‘hists__fprintf_nr_sample_events’:
builtin-report.c:307: error: format ‘%lu’ expects type ‘long unsigned int’, but argument 3 has type ‘u64’
make: *** [/tmp/pbuild/builtin-report.o] Error 1

$ rpm -q gcc
gcc-4.4.4-10.fc12.ppc

Signed-off-by: David Ahern <dsahern@gmail.com>
---
 tools/perf/builtin-report.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 5df829f..7477655 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -304,7 +304,7 @@ static size_t hists__fprintf_nr_sample_events(struct hists *self,
 	if (evname != NULL)
 		ret += fprintf(fp, " of event '%s'", evname);
 
-	ret += fprintf(fp, "\n# Event count (approx.): %lu", nr_events);
+	ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 	return ret + fprintf(fp, "\n#\n");
 }
 
-- 
1.7.5.4