Add option to set default site to download package source from. FreeBSD ports mirrors (like: ftp2.uk.freebsd.org/pub/FreeBSD/ports/distfiles) are a good place to find almost all of the source packages.

Config.in

@@ -15,6 +15,15 @@ source "target/device/Config.in"
 
 menu "Build options"
 
+config BR2_PRIMARY_SITE
+	string "Primary download site"
+	default ""
+	help
+	  Primary site to download from. If this option is set then buildroot
+	  will try to download package source first from this site and try the
+	  default if the file is not found.
+	  NOTE: This only works for packages using the Makefile.autotools.in
+
 config BR2_WGET
 	string "Wget command"
 	default "wget --passive-ftp -nd"

package/Makefile.autotools.in

@@ -131,6 +131,9 @@ TAR ?= tar
 # Retrieve and unpack the archive
 $(BUILD_DIR)/%/.stamp_downloaded:
 	$(call MESSAGE,"Downloading")
+ifdef BR2_PRIMARY_SITE
+	-$(Q)test -e $(DL_DIR)/$($(PKG)_SOURCE) || $(WGET) -P $(DL_DIR) $(BR2_PRIMARY_SITE)/$($(PKG)_SOURCE)
+endif
 	$(Q)test -e $(DL_DIR)/$($(PKG)_SOURCE) || $(WGET) -P $(DL_DIR) $($(PKG)_SITE)/$($(PKG)_SOURCE)
 	$(if $($(PKG)_PATCH),$(Q)test -e $(DL_DIR)/$($(PKG)_PATCH) || $(WGET) -P $(DL_DIR) $($(PKG)_SITE)/$($(PKG)_PATCH))
 	$(Q)mkdir -p $(@D)