build: Add "source" target.

2 files changed, 12 insertions, 0 deletions

diff --git a/build b/build
index 82e07d8..3cf9807 100755
--- a/build
+++ b/build
@@ -1,5 +1,7 @@
 #!/usr/bin/make -f
 
+include ../source.mk
+
 nop:
 	@:
 
diff --git a/source.mk b/source.mk
new file mode 100644
index 0000000..23c006a
--- /dev/null
+++ b/source.mk
@@ -0,0 +1,10 @@
+upstream_base_url = ftp://ftp.alsa-project.org/pub/lib
+upstream_archive = $(OPK_SOURCE)-$(OPK_SOURCE_VERSION_UPSTREAM).tar.bz2
+upstream_url = $(upstream_base_url)/$(upstream_archive)
+source_archive = ../$(OPK_SOURCE)-$(OPK_SOURCE_VERSION_UPSTREAM).orig.tar.bz2
+
+$(source_archive):
+	wget -c '$(upstream_url)'
+	mv '$(upstream_archive)' '$(source_archive)'
+
+source: $(source_archive)