package/ca-certificates: create the bundle as target-finalize hook

Other packages, or rootfs overlays, may install certificates, so only
create the certificate bundle as a target-finalize hook.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ca-certificates/ca-certificates.mk

@@ -20,7 +20,9 @@ define CA_CERTIFICATES_INSTALL_TARGET_CMDS
 	$(INSTALL) -d -m 0755 $(TARGET_DIR)/etc/ssl/certs
 	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) install DESTDIR=$(TARGET_DIR)
 	rm -f $(TARGET_DIR)/usr/sbin/update-ca-certificates
+endef
 
+define CA_CERTIFICATES_GEN_BUNDLE
 	# Remove any existing certificates under /etc/ssl/certs
 	rm -f $(TARGET_DIR)/etc/ssl/certs/*
 
@@ -30,14 +32,15 @@ define CA_CERTIFICATES_INSTALL_TARGET_CMDS
 	for i in `find usr/share/ca-certificates -name "*.crt" | LC_COLLATE=C sort` ; do \
 		ln -sf ../../../$$i etc/ssl/certs/`basename $${i} .crt`.pem ;\
 		cat $$i ;\
-	done >$(@D)/ca-certificates.crt
+	done >$(BUILD_DIR)/ca-certificates.crt
 
 	# Create symlinks to the certificates by their hash values
 	$(HOST_DIR)/bin/c_rehash $(TARGET_DIR)/etc/ssl/certs
 
 	# Install the certificates bundle
-	$(INSTALL) -D -m 644 $(@D)/ca-certificates.crt \
+	$(INSTALL) -D -m 644 $(BUILD_DIR)/ca-certificates.crt \
 		$(TARGET_DIR)/etc/ssl/certs/ca-certificates.crt
 endef
+CA_CERTIFICATES_TARGET_FINALIZE_HOOKS += CA_CERTIFICATES_GEN_BUNDLE
 
 $(eval $(generic-package))