Add support for lzma compressed archives.

---
 build/parsePrep.c   |    3 +++
 configure.ac        |    1 +
 file/src/compress.c |    3 +++
 macros.in           |    1 +
 rpmio/macro.c       |    5 +++++
 rpmio/rpmmacro.h    |    3 ++-
 6 files changed, 15 insertions(+), 1 deletion(-)

Index: build/parsePrep.c
===================================================================
--- build/parsePrep.c.orig	2004-11-28 21:54:53.000000000 +0100
+++ build/parsePrep.c	2007-10-11 13:12:55.000000000 +0200
@@ -251,6 +251,9 @@ static int checkOwners(const char * urlf
 		t = "%{_unzipbin} -qq";
 	    needtar = 0;
 	    break;
+	case COMPRESSED_LZMA:
+	    t = "%{__lzma} -dc";
+	    break;
 	}
 	zipper = rpmGetPath(t, NULL);
 	buf[0] = '\0';
Index: configure.ac
===================================================================
--- configure.ac.orig	2007-10-11 12:46:47.000000000 +0200
+++ configure.ac	2007-10-11 12:46:48.000000000 +0200
@@ -221,6 +221,7 @@ AC_PATH_PROG(__GPG, gpg, /usr/bin/gpg, $
 AC_PATH_PROG(__GREP, grep, /bin/grep, $MYPATH)
 AC_PATH_PROG(GZIPBIN, gzip, /bin/gzip, $MYPATH)
 AC_PATH_PROG(UNZIPBIN, unzip, /usr/bin/unzip, $MYPATH)
+AC_PATH_PROG(LZMABIN, lzma, /usr/bin/lzma, $MYPATH)
 
 AC_PATH_PROG(__ID, id, /usr/bin/id, $MYPATH)
 AC_MSG_CHECKING(checking whether id supports -u)
Index: file/src/compress.c
===================================================================
--- file/src/compress.c.orig	2007-10-11 12:46:40.000000000 +0200
+++ file/src/compress.c	2007-10-11 12:46:48.000000000 +0200
@@ -76,6 +76,9 @@ private struct {
 	{ "PK\3\4",   4, { "gzip", "-cdq", NULL }, 1 },		/* pkzipped, */
 					    /* ...only first file examined */
 	{ "BZh",      3, { "bzip2", "-cd", NULL }, 1 },		/* bzip2-ed */
+	/* The first bytes of a LZMA compressed file describe some compression
+	   settings and thus vary. This handles the most common case: */
+	{ "]\000\000",3, { "lzma", "-cdq", NULL }, 1 },		/* lzma-ed */
 };
 /*@=nullassign@*/
 
Index: macros.in
===================================================================
--- macros.in.orig	2007-10-11 12:46:46.000000000 +0200
+++ macros.in	2007-10-11 12:46:48.000000000 +0200
@@ -48,6 +48,7 @@
 %__id			@__ID@
 %__install		@__INSTALL@
 %__ln_s			@LN_S@
+%__lzma			@LZMABIN@
 %__make			@__MAKE@
 %__mkdir		@__MKDIR@
 %__mkdir_p		@MKDIR_P@
Index: rpmio/macro.c
===================================================================
--- rpmio/macro.c.orig	2005-07-13 11:49:40.000000000 +0200
+++ rpmio/macro.c	2007-10-11 13:11:46.000000000 +0200
@@ -1165,6 +1165,9 @@ doFoo(MacroBuf mb, int negate, const cha
 	case 3:	/* COMPRESSED_ZIP */
 	    sprintf(be, "%%_unzip %s", b);
 	    break;
+	case 4:	/* COMPRESSED_LZMA */
+	    sprintf(be, "%%_lzma -dc %s", b);
+	    break;
 	}
 	b = be;
     } else if (STREQ("S", f, fn)) {
@@ -2075,6 +2078,8 @@ int isCompressed(const char * file, rpmC
     } else if ((magic[0] == 0120) && (magic[1] == 0113) &&
 	 (magic[2] == 0003) && (magic[3] == 0004)) {	/* pkzip */
 	*compressed = COMPRESSED_ZIP;
+    } else if (magic[0] == 0135 && magic[1] == 0 && magic[2] == 0) { /* lzma */
+	*compressed = COMPRESSED_LZMA;
     } else if (((magic[0] == 0037) && (magic[1] == 0213)) || /* gzip */
 	((magic[0] == 0037) && (magic[1] == 0236)) ||	/* old gzip */
 	((magic[0] == 0037) && (magic[1] == 0036)) ||	/* pack */
Index: rpmio/rpmmacro.h
===================================================================
--- rpmio/rpmmacro.h.orig	2004-10-20 12:19:34.000000000 +0200
+++ rpmio/rpmmacro.h	2007-10-11 13:08:47.000000000 +0200
@@ -172,7 +172,8 @@ typedef enum rpmCompressedMagic_e {
     COMPRESSED_NOT		= 0,	/*!< not compressed */
     COMPRESSED_OTHER		= 1,	/*!< gzip can handle */
     COMPRESSED_BZIP2		= 2,	/*!< bzip2 can handle */
-    COMPRESSED_ZIP		= 3	/*!< unzip can handle */
+    COMPRESSED_ZIP		= 3,	/*!< unzip can handle */
+    COMPRESSED_LZMA		= 4	/*!< lzma can handle */
 } rpmCompressedMagic;
 
 /**