Update the buildroot rules to use the linux backend.

Author: zear

extras/buildroot-package/libshake/libshake.mk

@@ -12,15 +12,15 @@ LIBSHAKE_INSTALL_STAGING = YES
 LIBSHAKE_MAKE_ENV = CC="$(TARGET_CC)" PREFIX=/usr
 
 define LIBSHAKE_BUILD_CMDS
-	$(LIBSHAKE_MAKE_ENV) $(MAKE) -C $(@D)
+	$(LIBSHAKE_MAKE_ENV) $(MAKE) -C $(@D) BACKEND=LINUX
 endef
 
 define LIBSHAKE_INSTALL_STAGING_CMDS
-	$(LIBSHAKE_MAKE_ENV) DESTDIR="$(STAGING_DIR)" $(MAKE) -C $(@D) install
+	$(LIBSHAKE_MAKE_ENV) DESTDIR="$(STAGING_DIR)" $(MAKE) -C $(@D) BACKEND=LINUX install
 endef
 
 define LIBSHAKE_INSTALL_TARGET_CMDS
-	$(LIBSHAKE_MAKE_ENV) DESTDIR="$(TARGET_DIR)" $(MAKE) -C $(@D) install-lib
+	$(LIBSHAKE_MAKE_ENV) DESTDIR="$(TARGET_DIR)" $(MAKE) -C $(@D) BACKEND=LINUX install-lib
 endef
 
 $(eval $(generic-package))