Index: Makefile
===================================================================
RCS file: /share/MD0_DATA/cvsroot/dd_rescue/Makefile,v
retrieving revision 1.153
retrieving revision 1.154
diff -u -p -r1.153 -r1.154
--- Makefile	20 May 2014 07:28:01 -0000	1.153
+++ Makefile	21 May 2014 08:27:22 -0000	1.154
@@ -1,6 +1,6 @@
 # Makefile for dd_rescue
 # (c) garloff@suse.de, 99/10/09, GNU GPL
-# $Id: Makefile,v 1.153 2014/05/20 07:28:01 garloff Exp $
+# $Id: Makefile,v 1.154 2014/05/21 08:27:22 garloff Exp $
 
 VERSION = 1.43
 
@@ -15,7 +15,8 @@ INSTALLFLAGS = -s
 prefix = $(DESTDIR)/usr
 INSTALLDIR = $(prefix)/bin
 #INSTALLDIR = $(DESTDIR)/bin
-INSTALLLIBDIR = $(prefix)/$(LIB)
+#INSTALLLIBDIR = $(prefix)/$(LIB)
+INSTALLLIBDIR = $(DESTDIR)/$(LIBDIR)
 MANDIR = $(prefix)/share/man
 #MYDIR = dd_rescue-$(VERSION)
 MYDIR = dd_rescue
@@ -279,11 +280,11 @@ check_lzo: $(TARGETS)
 	$(LZOP) -fd dd_rescue.ddr.lzo
 	cmp dd_rescue dd_rescue.ddr
 	@rm -f dd_rescue.ddr dd_rescue.ddr.lzo
-	./dd_rescue -b1M -L ./libddr_MD5.so=output,./libddr_lzo.so=compress,./libddr_MD5.so=output dd_rescue dd_rescue.ddr.lzo > dd_rescue.ddr.MD5SUM
+	./dd_rescue -b256k -L ./libddr_MD5.so=output,./libddr_lzo.so=compress,./libddr_MD5.so=output dd_rescue dd_rescue.ddr.lzo > dd_rescue.ddr.MD5SUM
 	md5sum -c dd_rescue.ddr.MD5SUM
 	md5sum dd_rescue dd_rescue.ddr.lzo
 	$(LZOP) -Nvl dd_rescue.ddr.lzo
-	./dd_rescue -b1M -TL ./libddr_MD5.so=output,./libddr_lzo.so=compress,./libddr_MD5.so,./libddr_lzo.so=decompress,./libddr_MD5.so=outfd=1 dd_rescue dd_rescue.ddr > dd_rescue.ddr.MD5
+	./dd_rescue -b256k -TL ./libddr_MD5.so=output,./libddr_lzo.so=compress,./libddr_MD5.so,./libddr_lzo.so=decompress,./libddr_MD5.so=outfd=1 dd_rescue dd_rescue.ddr > dd_rescue.ddr.MD5
 	cmp dd_rescue dd_rescue.ddr
 	md5sum -c dd_rescue.ddr.MD5
 	./dd_rescue -b16k -TL ./libddr_MD5.so=output,./libddr_lzo.so=compress,./libddr_MD5.so,./libddr_lzo.so=decompress,./libddr_MD5.so=outfd=1 dd_rescue dd_rescue.ddr > dd_rescue.ddr.MD5
@@ -292,7 +293,7 @@ check_lzo: $(TARGETS)
 	@cp -p dd_rescue.ddr.lzo dd_rescue.lzo
 	@rm -f dd_rescue.ddr dd_rescue.ddr.lzo dd_rescue.ddr.MD5
 	$(LZOP) -f dd_rescue
-	./dd_rescue -b1M -TL ./libddr_lzo.so dd_rescue.lzo dd_rescue.cmp
+	./dd_rescue -b256k -TL ./libddr_lzo.so dd_rescue.lzo dd_rescue.cmp
 	cmp dd_rescue dd_rescue.cmp
 	@rm -f dd_rescue.cmp dd_rescue.lzo
 	./dd_rescue -b16k -L ./libddr_MD5.so=output,./libddr_lzo.so,./libddr_MD5.so=output dd_rescue dd_rescue.lzo > MD5.1
Index: ddr_lzo.1
===================================================================
RCS file: /share/MD0_DATA/cvsroot/dd_rescue/ddr_lzo.1,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -p -r1.8 -r1.9
--- ddr_lzo.1	19 May 2014 19:59:25 -0000	1.8
+++ ddr_lzo.1	21 May 2014 08:27:22 -0000	1.9
@@ -1,4 +1,4 @@
-.\" $Id: ddr_lzo.1,v 1.8 2014/05/19 19:59:25 garloff Exp $
+.\" $Id: ddr_lzo.1,v 1.9 2014/05/21 08:27:22 garloff Exp $
 .
 .TH ddr_lzo 1 "2014-05-12" "Kurt Garloff" "LZO de/compression plugin for dd_rescue"
 .
@@ -176,10 +176,11 @@ resulting lzop file to ddr_lzo's own ver
 incompatibility with lzop (as of 1.03).
 .br
 lzop by default uses block sizes of 256kiB (on Unix systems), but
-supports de/compression with different block sizes as well. The
-maximum possible is 64MiB; for reasons of error resilience, it is
-however NOT recommended to use blocks larger than 16MiB, see
-below.
+supports de/compression with smaller block sizes as well. It needs
+to be recompiled to support block sizes up to a possible maximum
+of 64MiB. Thus staying below or at 256kiB is recommended; even
+when lzop compatibility is no concern, blocks larger than 16MiB
+are not recommended, see below.
 .
 .SS Blocksize considerations
 When decompressing, the (soft) block size chosen in dd_rescue must be 
@@ -196,8 +197,10 @@ The default from dd_rescue (128kiB) is a
 recommended to increase the block size too much -- when an lzo file gets
 corrupted, at least one block will be lost; larger blocks result in larger
 damage. Also, blocks larger than 16MiB will not work well with the error
-tolerance features of ddr_lzo. Also note that blocks larger than 64MiB
-prevent decompression with lzop.
+tolerance features of ddr_lzo. Also note that blocks larger than 256kiB
+need recompilation of lzop if you want to be able to use lzop to
+process the .lzo files; blocks larger than 64MiB prevent decompression
+even with a recompiled lzop.
 .
 .SH BUGS/LIMITATIONS
 .SS Maturity
@@ -205,7 +208,7 @@ The plugin is new as of dd_rescue 1.43. 
 saved with ddr_lzo as the only backup for valuable data. Also
 expect some changes to ddr_lzo in the not too distant future. 
 (This should not break the file format, as we're following lzop ....)
-.br 
+.br
 Compressed data is more sensitive to data corruption than plain data.
 Note that the checksums (adler32 or crc32) in the lzop file format
 do NOT allow to correct for errors; they just allow a somewhat reliable
Index: libddr_lzo.c
===================================================================
RCS file: /share/MD0_DATA/cvsroot/dd_rescue/libddr_lzo.c,v
retrieving revision 1.107
retrieving revision 1.110
diff -u -p -r1.107 -r1.110
--- libddr_lzo.c	20 May 2014 09:12:23 -0000	1.107
+++ libddr_lzo.c	21 May 2014 09:22:01 -0000	1.110
@@ -6,6 +6,10 @@
  * License: GNU GPLv2 or v3
  */
 
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
 #define _LARGEFILE64_SOURCE 1
 #define _FILE_OFFSET_BITS 64
 
@@ -41,9 +45,9 @@
 #endif
 
 #ifdef HAVE_BASENAME
-const char* basename(const char*);
+//const char* basename(const char*);
 #else
-static char* basename(const char *nm)
+static const char* basename(const char *nm)
 {
 	const char* ptr = strrchr(nm, '/');	/* Not on DOS */
 	if (ptr)
@@ -531,9 +535,14 @@ int lzo_open(const opt_t *opt, int ilnch
 	state->dbuf = (unsigned char*)slackalloc(state->dbuflen, state);
 	if (state->do_bench) 
 		state->cpu = 0;
-	if (opt->softbs > MAXBLOCKSZ)
-		FPLOG(WARN, "Blocks larger than %iMiB not recommended %iMiB specified)\n",
-			MAXBLOCKSZ>>20, opt->softbs);
+	if (state->mode == COMPRESS) {
+		if (opt->softbs > MAXBLOCKSZ)
+			FPLOG(WARN, "Blocks larger than %iMiB not recommended (%iMiB specified)\n",
+				MAXBLOCKSZ>>20, opt->softbs>>20);
+		else if (opt->softbs > 256*1024)
+			FPLOG(WARN, "Blocks larger than 256kiB need recompilation of lzop (%ikiB specified)\n",
+				opt->softbs>>10);
+	}
 	state->next_ipos = opt->init_ipos;
 	return 0;
 	/* This breaks MD5 in chain before us