Index: lwipv6-1.5a/lwip-contrib/ports/unix/proj/lib/Makefile.am
===================================================================
--- lwipv6-1.5a.orig/lwip-contrib/ports/unix/proj/lib/Makefile.am	2012-01-20 00:55:08.000000000 +0100
+++ lwipv6-1.5a/lwip-contrib/ports/unix/proj/lib/Makefile.am	2012-01-20 00:59:55.000000000 +0100
@@ -241,7 +241,7 @@
 # project. It's here only for debug.
 
 liblwipv6_la_SOURCES = $(LWIPFILES) $(LWIPHEADERS) sharedlib.c unixlib.c
-liblwipv6_la_LDFLAGS = -version-number 2:0:0 -Xcompiler -nostartfiles
+liblwipv6_la_LDFLAGS = -version-info 3:0:1 -Xcompiler -nostartfiles
 # liblwip_la_LIBADD = sharedlib.lo unixlib.lo
 
 include_HEADERS = $(LWIPARCH)/include/lwipv6.h
Index: lwipv6-1.5a/lwip-contrib/ports/unix/proj/lib/Makefile.in
===================================================================
--- lwipv6-1.5a.orig/lwip-contrib/ports/unix/proj/lib/Makefile.in	2012-01-20 01:00:17.000000000 +0100
+++ lwipv6-1.5a/lwip-contrib/ports/unix/proj/lib/Makefile.in	2012-01-20 01:00:27.000000000 +0100
@@ -447,7 +447,7 @@
 # NB: unixlib.o should not be included, it's used only by ViewOS 
 # project. It's here only for debug.
 liblwipv6_la_SOURCES = $(LWIPFILES) $(LWIPHEADERS) sharedlib.c unixlib.c
-liblwipv6_la_LDFLAGS = -version-number 2:0:0 -Xcompiler -nostartfiles
+liblwipv6_la_LDFLAGS = -version-info 3:0:1 -Xcompiler -nostartfiles
 # liblwip_la_LIBADD = sharedlib.lo unixlib.lo
 include_HEADERS = $(LWIPARCH)/include/lwipv6.h
 all: all-am