adb: Also pass TARGET_CPPFLAGS

Fixes build issues with external toolchains that do not have STAGING_DIR
in their default search path.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
(cherry picked from commit 4aa1560de3ce7e1ce813f450025ee0c55ab868eb)

diff --git a/package/utils/adb/Makefile b/package/utils/adb/Makefile
index 1e77bb7e8a0809c9219ec44532f8465ac5adb4bc..0861696527086c4f5e8bedccba3c09e1edd2940c 100644 (file)
--- a/package/utils/adb/Makefile
+++ b/package/utils/adb/Makefile
@@ -40,7 +40,7 @@ define Build/Compile
        $(MAKE) -C $(PKG_BUILD_DIR)/adb/ \
                $(TARGET_CONFIGURE_OPTS) \
                TARGET=Linux \
-               CFLAGS="$(TARGET_CFLAGS)" \
+               CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
                LDFLAGS="$(TARGET_LDFLAGS)"
 endef