# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1314289818 -7200
# Node ID 9cb3554bebebb1d69429b2c293850176c8df3d61
# Parent  b6d2623c2e68ba5ebedd8383bddb6946dad85a24
configure: check for lzma

Some packages are available as LZMA tarballs. LZMA is a relatively recent
compression algorithm; it's slightly better than bzip2, but offers much
faster decompression. LZMA is now deprecated in favor of XZ, but some
packages switched to LZMA when XZ was not yet available, or still in its
infancy. Latest XZ (which totaly obsoletes LZMA) offers a backward LZMA-
compatible utility, so we can check for 'lzma' nonetheless.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

diff -r b6d2623c2e68 -r 9cb3554bebeb configure
--- a/configure	Fri Aug 26 00:05:20 2011 +0200
+++ b/configure	Thu Aug 25 18:30:18 2011 +0200
@@ -504,6 +504,9 @@
 has_or_warn  prog=xz                                        \
              kconfig=has_xzutils                            \
              err="xz-compressed tarballs will not be used"
+has_or_warn  prog=lzma                                      \
+             kconfig=has_lzma                               \
+             err="lzma-compressed tarballs will not be used"
 has_or_abort prog=readlink
 has_or_abort prog=objcopy var=objcopy
 has_or_abort prog=objdump var=objdump
diff -r b6d2623c2e68 -r 9cb3554bebeb scripts/functions
--- a/scripts/functions	Fri Aug 26 00:05:20 2011 +0200
+++ b/scripts/functions	Thu Aug 25 18:30:18 2011 +0200
@@ -403,6 +403,9 @@
     if [ "${CT_CONFIGURE_has_xzutils}" = "y" ]; then
         printf ".tar.xz\n"
     fi
+    if [ "${CT_CONFIGURE_has_lzma}" = "y" ]; then
+        printf ".tar.lzma\n"
+    fi
     printf ".tar.bz2\n"
     printf ".tar.gz\n.tgz\n"
     printf ".tar\n"
@@ -757,6 +760,7 @@
     tar_opts+=( "-xv" )
     case "${ext}" in
         .tar.xz)      CT_DoExecLog FILE tar "${tar_opts[@]}" --use-compress-program=xz -f "${full_file}";;
+        .tar.lzma)    CT_DoExecLog FILE tar "${tar_opts[@]}" --use-compress-program=lzma -f "${full_file}";;
         .tar.bz2)     CT_DoExecLog FILE tar "${tar_opts[@]}" -j -f "${full_file}";;
         .tar.gz|.tgz) CT_DoExecLog FILE tar "${tar_opts[@]}" -z -f "${full_file}";;
         .tar)         CT_DoExecLog FILE tar "${tar_opts[@]}" -f "${full_file}";;