perf tools: Add missing -ldl for gtk build

If we build perf with NO_LIBPYTHON=1 NO_LIBPERL=1 the '-ldl' is not
added to libs build fails if we have gtk2 code in, because it depends on
it.

Signed-off-by: Jiri Olsa <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index cf6ad5db19dcf1ccfec81b3f929ebfc16543650d..29ad7d6c5311f7ca9f13b2e800122cd502bf9e1e 100644 (file)
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -382,6 +382,7 @@ ifndef NO_GTK2
     CFLAGS += -DHAVE_GTK2_SUPPORT
     GTK_CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
     GTK_LIBS := $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
+    EXTLIBS += -ldl
   endif
 endif