--- config.h.in
+++ config.h.in	2007-12-07 15:50:22.900940943 +0100
@@ -220,6 +220,9 @@
 /* Define to 1 if you have the `z' library (-lz). */
 #undef HAVE_LIBZ
 
+/* Define to 1 if you have libzio for opening compressed manuals */
+#undef HAVE_ZIO
+
 /* Define to 1 if you have the <limits.h> header file. */
 #undef HAVE_LIMITS_H
 
--- configure.ac
+++ configure.ac	2007-12-07 15:55:02.636618503 +0100
@@ -98,6 +98,18 @@ AC_ARG_WITH(config-file,
 	 fi],
 	 : ${config_file=\$\{sysconfdir\}/man_db.conf}
 	 : ${config_file_basename=man_db.conf})
+AC_ARG_WITH(zio,
+[AS_HELP_STRING([--with-zio=LIBRARY], [use zlib/libbz2 wrapper library LIBRARY (libzio)])],
+	[if test -z "$withval" -o "$withval" = "yes"
+	 then
+		zio=libzio
+	 elif test "$withval" = "no"
+	 then
+		AC_MSG_ERROR(--with-zio requires an argument)
+	 else
+		zio=$withval
+	 fi],
+	 : ${zio=no})
 dnl
 dnl Finish the argument parsing
 dnl
@@ -271,6 +283,29 @@ AC_SUBST(gunzip)dnl
 AC_SUBST(uncompress)dnl
 AC_SUBST(bunzip2)dnl
 AC_CHECK_LIB(z, gzopen)
+dnl Check for zlib and libbz2 libraries to use this together
+dnl with SuSE's libzio to open compressed info files.
+dnl
+if test "$zio" = "no" || test -n "$zio"
+then
+   AC_CHECK_HEADER(zlib.h,[
+     for lib in z gz
+     do
+       AC_CHECK_LIB($lib, gzopen,     [LIBS="$LIBS -l$lib" ; LEXLIB="$LEXLIB -l$lib" ; break])
+     done])
+   AC_CHECK_HEADER(bzlib.h,[
+     for lib in bz2 bzip2
+     do
+       AC_CHECK_LIB($lib, BZ2_bzopen, [LIBS="$LIBS -l$lib" ; LEXLIB="$LEXLIB -l$lib" ; break])
+     done])
+   AC_CHECK_HEADER(zio.h,[
+     for lib in ${zio#lib} zio
+     do
+       AC_CHECK_LIB($lib, fzopen,     [LIBS="$LIBS -l$lib" ; LEXLIB="$LEXLIB -l$lib"
+		    AC_DEFINE([COMP_SRC],[],[])
+		    AC_DEFINE([HAVE_ZIO],[],[])])
+     done])
+fi
 dnl
 dnl to add more decompressors just follow the scheme above.
 dnl
--- lib/decompress.c
+++ lib/decompress.c	2007-12-07 18:22:47.940413890 +0100
@@ -46,6 +46,10 @@
 #  include "zlib.h"
 #endif /* HAVE_LIBZ */
 
+#ifdef HAVE_ZIO
+#  include "zio.h"
+#endif /* HAVE_ZIO */
+
 #include "manconfig.h"
 #include "comp_src.h"
 #include "pipeline.h"
@@ -76,6 +80,32 @@ static void decompress_zlib (void *data 
 
 #endif /* HAVE_LIBZ */
 
+#ifdef HAVE_ZIO
+
+static void decompress_zio (void *data)
+{
+	const char *what = (const char*)data;
+	FILE *file;
+
+	file = fdzopen(dup (fileno (stdin)), "r", what);
+	if (!file)
+		return;
+
+	for (;;) {
+		char buffer[4096];
+		int r = fread(buffer, sizeof(char), sizeof(buffer), file);
+		if (r <= 0)
+			break;
+		if (fwrite (buffer, 1, (size_t) r, stdout) < (size_t) r)
+			break;
+	}
+
+        fclose(file);
+	return;
+}
+
+#endif /* HAVE_ZIO */
+
 pipeline *decompress_open (const char *filename)
 {
 	command *cmd;
@@ -87,9 +117,45 @@ pipeline *decompress_open (const char *f
 	char *ext;
 	struct compression *comp;
 
-	if (stat (filename, &st) < 0 && !S_ISDIR (st.st_mode))
+	if (stat (filename, &st) < 0 || S_ISDIR (st.st_mode))
 		return NULL;
 
+#ifdef HAVE_ZIO
+	ext = strrchr(filename, '.');
+	if (ext && STREQ (ext, ".gz")) {
+		/* informational only; no shell quoting concerns */
+		char *name = strappend (NULL, "zcat < ", filename, NULL);
+		cmd = command_new_function (name, &decompress_zio, "g");
+		free (name);
+		p = pipeline_new_commands (cmd, NULL);
+		goto got_pipeline;
+	}
+	if (ext && STREQ (ext, ".z")) {
+		/* informational only; no shell quoting concerns */
+		char *name = strappend (NULL, "zcat < ", filename, NULL);
+		cmd = command_new_function (name, &decompress_zio, "z");
+		free (name);
+		p = pipeline_new_commands (cmd, NULL);
+		goto got_pipeline;
+	}
+	if (ext && STREQ (ext, ".bz2")) {
+		/* informational only; no shell quoting concerns */
+		char *name = strappend (NULL, "bzcat < ", filename, NULL);
+		cmd = command_new_function (name, &decompress_zio, "b");
+		free (name);
+		p = pipeline_new_commands (cmd, NULL);
+		goto got_pipeline;
+	}
+	if (ext && STREQ (ext, ".Z")) {
+		/* informational only; no shell quoting concerns */
+		char *name = strappend (NULL, "zcat < ", filename, NULL);
+		cmd = command_new_function (name, &decompress_zio, "Z");
+		free (name);
+		p = pipeline_new_commands (cmd, NULL);
+		goto got_pipeline;
+	}
+#endif /* HAVE_ZIO */
+
 #ifdef HAVE_LIBZ
 	filename_len = strlen (filename);
 	if (filename_len > 3 && STREQ (filename + filename_len - 3, ".gz")) {