opendkim: use pkgconfig for libbsd

Allows using the overlay. Also remove the outdated uClibc patch.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

mail/opendkim/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=opendkim
 PKG_VERSION:=2.10.3
-PKG_RELEASE:=5
+PKG_RELEASE:=6
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SF/$(PKG_NAME)
@@ -61,14 +61,14 @@ define Package/opendkim-tools/description
   opendkim-genzone, opendkim-testkey and opendkim-testmsg tools.
 endef
 
-TARGET_CFLAGS += $(FPIC)
-
 CONFIGURE_ARGS += \
 	--without-db \
 	--without-gcov \
 	--without-gprof \
 	--without-lcov \
-	--with-milter=$(STAGING_DIR)/usr
+	$(if $(CONFIG_USE_GLIBC),,--without-libbsd) \
+	--with-milter=$(STAGING_DIR)/usr \
+	--with-pic
 
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/lib $(1)/usr/sbin

mail/opendkim/patches/020-uclibc.patch

@@ -1,20 +0,0 @@
---- a/libopendkim/dkim-dns.c
-+++ b/libopendkim/dkim-dns.c
-@@ -163,6 +163,9 @@ int
- dkim_res_query(void *srv, int type, unsigned char *query, unsigned char *buf,
-                size_t buflen, void **qh)
- {
-+#ifdef __UCLIBC__
-+	return DKIM_DNS_ERROR;
-+#else
- 	int n;
- 	int ret;
- 	struct dkim_res_qh *rq;
-@@ -209,6 +212,7 @@ dkim_res_query(void *srv, int type, unsi
- 	*qh = (void *) rq;
- 
- 	return DKIM_DNS_SUCCESS;
-+#endif // __UCLIBC__
- }
- 
- /*