Testing with a LIBDW_DIR showed that in Makefile.config the dwarf
feature tests need the LIBDW_DIR setting in the CFLAGS/LDFLAGS.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/Makefile.config | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 4ddb27a48eed..c1c7c25887a7 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -162,8 +162,14 @@ ifeq ($(findstring -static,${LDFLAGS}),-static)
   # Must put -ldl after -lebl for dependency
   DWARFLIBS += -ldl
 endif
+FEATURE_CHECK_CFLAGS-dwarf := $(LIBDW_CFLAGS)
+FEATURE_CHECK_LDFLAGS-dwarf := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
+FEATURE_CHECK_CFLAGS-dwarf_getlocations := $(LIBDW_CFLAGS)
+FEATURE_CHECK_LDFLAGS-dwarf_getlocations := $(LIBDW_LDFLAGS) $(DWARFLIBS)
+FEATURE_CHECK_CFLAGS-dwarf_getcfi := $(LIBDW_CFLAGS)
+FEATURE_CHECK_LDFLAGS-dwarf_getcfi := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 
 # for linking with debug library, run like:
 # make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
-- 
2.47.0.105.g07ac214952-goog