File opennurbs_20121024-build-shared.patch of Package opennurbs

diff -aruN opennurbs_20121024.orig/makefile opennurbs_20121024/makefile
--- opennurbs_20121024.orig/makefile	2012-10-04 10:43:30.000000000 +0200
+++ opennurbs_20121024/makefile	2013-04-03 23:16:36.174509153 +0200
@@ -9,10 +9,10 @@
 # asks too many questions, then uncomment the next line.
 # RM = /bin/rm -f
 
-AR = ar qvl
+AR = g++ -shared  -Wl,-soname=libopenNURBS.so.0 -o
 
 # If your system doesn't use ranlib, uncomment the "echo" define.
-RANLIB = ranlib
+RANLIB = echo
 # RANLIB = echo
 
 ###############################################################
@@ -33,14 +33,14 @@
 
 # C compiler and flags
 CC = gcc
-CFLAGS = $(ON_GNU_OPTIMIZER_FLAGS) -Wall -D_GNU_SOURCE -DMY_ZCALLOC -DZ_PREFIX -I.
+CFLAGS = $(ON_GNU_OPTIMIZER_FLAGS) $(XFLAGS) -fPIC -Wall -D_GNU_SOURCE -I.
 
 # C++ compiler and flags
 CCC = g++
-CCFLAGS = $(ON_GNU_OPTIMIZER_FLAGS) -Wall -D_GNU_SOURCE -I.
+CCFLAGS = $(ON_GNU_OPTIMIZER_FLAGS) $(XFLAGS) -fPIC -Wall -D_GNU_SOURCE -I.
 
 LINK = $(CCC)
-LINKFLAGS =
+LINKFLAGS = -lz
 
 ###############################################################
 # Irix 6.5 compiler (uncomment the lines in this block)
@@ -89,7 +89,7 @@
 ###############################################################
 
 OPENNURBS_LIB_NAME = openNURBS
-OPENNURBS_LIB_FILE = lib$(OPENNURBS_LIB_NAME).a
+OPENNURBS_LIB_FILE = lib$(OPENNURBS_LIB_NAME).so
 
 ON_INC= opennurbs.h \
 		opennurbs_3dm.h \