Historically, xorg packages were usually provided as .gz and .bz2
compressed tarballs.  The current trend is to no longer provide .bz2,
but .gz and .xz instead.  Allow the compression to be configured, with a
backwards compatible default.
---
 cygclass/xorg.cygclass | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/cygclass/xorg.cygclass b/cygclass/xorg.cygclass
index 2049fd5..519ea8f 100644
--- a/cygclass/xorg.cygclass
+++ b/cygclass/xorg.cygclass
@@ -143,11 +143,22 @@ SUMMARY="X.Org ${ORIG_PN} component"
 #  DEFINITION
 HOMEPAGE="https://www.x.org/";
 #****
+
+#****o* xorg.cygclass/XORG_SRC_COMPRESSION
+#  DESCRIPTION
+#  The compression extension used in the default SRC_URI, set by the xorg
+#  cygclass.  For backwards compatibility, this defaults to 'bz2', but a
+#  different value may be needed for X.Org packages which no longer provide
+#  tarballs using that compression.
+#  DEFINITION
+XORG_SRC_COMPRESSION="${XORG_SRC_COMPRESSION:-bz2}"
+#****
+
 #****o* xorg.cygclass/SRC_URI (xorg)
 #  DESCRIPTION
 #  Download location of the release tarball.
 #****
-SRC_URI="https://www.x.org/releases/individual/${xorg_cat}/${ORIG_PN}-${PV}.tar.bz2";
+SRC_URI="https://www.x.org/releases/individual/${xorg_cat}/${ORIG_PN}-${PV}.tar.${XORG_SRC_COMPRESSION}";
 
 #****o* xorg.cygclass/GIT_URI (xorg)
 #  DESCRIPTION
-- 
2.35.1

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