Patch adding lzip extract support

[Antonio Diaz Diaz]

Dear p7zip maintainers,

I have written a patch that adds lzip decompression (extract) support to p7zip.

http://download-mirror.savannah.gnu.org/releases/lzip/p7zip_16.02_lzip-1.tar.bz2

Instructions on how to apply the patch are included in the file README_p7zip_lzip_patch.

I hope that this patch also serves as a base to add extract support of lzip files to 7zip. If it does not, I can write another patch for 7zip.

Best regards,
Antonio.

[Sam Tansy]

I tried your patch and it works well, resulting 7z extracts .lz files, no problem
I even manage to use 7z.so with p7z_usr plugin do double commander .

for completeness you should add this to your patch: (even if it's just a string supplement)

diff -urdN p7zip_16.02/CPP/7zip/Archive/7z/7zUpdate.cpp p7zip_16.02-lzip/CPP/7zip/Archive/7z/7zUpdate.cpp
--- p7zip_16.02/CPP/7zip/Archive/7z/7zUpdate.cpp    2016-05-20 08:31:41.000000000 +0000
+++ p7zip_16.02-lzip/CPP/7zip/Archive/7z/7zUpdate.cpp   2017-04-03 21:46:51.000000000 +0000
@@ -562,7 +562,7 @@
 }

 static const char *g_Exts =
-  " 7z xz lzma ace arc arj bz tbz bz2 tbz2 cab deb gz tgz ha lha lzh lzo lzx pak rar rpm sit zoo"
+  " 7z xz lzma ace arc arj bz tbz bz2 tbz2 cab deb gz tgz ha lha lz tlz lzh lzo lzx pak rar rpm sit zoo"
   " zip jar ear war msi"
   " 3gp avi mov mpeg mpg mpe wmv"
   " aac ape fla flac la mp3 m4a mp4 ofr ogg pac ra rm rka shn swa tta wv wma wav"