[PATCH] kselftest: alsa: handle cross compilation

[Antonio Terceiro]

Calling just `pkg-config` is adequate for native builds, but finding the
foreign libraries with pkg-config needs pkg-config to be called via its
architecture-specific wrapper. This works in Debian, where there is a
corresponding *-pkg-config wrapper script for each enabled foreign
architecture, just like there are *-gcc, *-ld.

Signed-off-by: Antonio Terceiro <antonio.terceiro at linaro.org>
---
 tools/testing/selftests/alsa/Makefile | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/alsa/Makefile b/tools/testing/selftests/alsa/Makefile
index f64d9090426d..f5675b3c929d 100644
--- a/tools/testing/selftests/alsa/Makefile
+++ b/tools/testing/selftests/alsa/Makefile
@@ -1,8 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 #
 
-CFLAGS += $(shell pkg-config --cflags alsa)
-LDLIBS += $(shell pkg-config --libs alsa)
+PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
+
+CFLAGS += $(shell $(PKG_CONFIG) --cflags alsa)
+LDLIBS += $(shell $(PKG_CONFIG) --libs alsa)
 
 TEST_GEN_PROGS := mixer-test
 
-- 
2.35.1