diff -ruN icclib.orig/Makefile icclib/Makefile
--- icclib.orig/Makefile	2008-03-12 08:18:20.000000000 +0100
+++ icclib/Makefile	2012-05-20 21:05:03.000000000 +0200
@@ -3,13 +3,13 @@
 # by uncommenting the appropriate line:
 
 # Microsoft C++, WinNT setup
-include Makefile.WNT
+#include Makefile.WNT
 
 # IBM C++, WinNT setup
 #include Makefile.IBMNT
 
 # Generic UNIX setup
-#include Makefile.UNIX
+include Makefile.UNIX
 
 # Apple OSX
 #include Makefile.OSX
diff -ruN icclib.orig/Makefile.UNIX icclib/Makefile.UNIX
--- icclib.orig/Makefile.UNIX	2008-03-12 08:18:20.000000000 +0100
+++ icclib/Makefile.UNIX	2012-05-20 21:27:44.000000000 +0200
@@ -1,7 +1,7 @@
 # Generic UNIX setup
 
 SLASH     = /
-SUFLIB    = .a
+SUFLIB    = .so
 SUFOBJ    = .o
 SUFEXE    = 
 CMDSEP    = ;
@@ -18,17 +18,17 @@
 STDHDRSDEF = /usr/include
 
 MAKEU     = make
-LIBU      = ar -r
-LIBOF     = -o
+LIBOF     = 
 RANLIB    = echo
 AS        = as
-CCFLAGSDEF   = -DUNIX -c
-CC        = cc $(CCFLAGS) $(INCFLAG)$(STDHDRS)
+CCFLAGSDEF   = -DUNIX -fPIC -c
+CC        = cc $(CCFLAGSDEF) $(CFLAGS) $(INCFLAG)$(STDHDRS)
 CCOF      = -o 
-LINKFLAGSDEF = -lm
+LINKFLAGSDEF = -shared
 LINKLIBS  = 
-LINK      = cc $(LINKFLAGS) $(LINKLIBS)
+LINK      = cc $(LINKFLAGSDEF) $(LDFLAGS) $(LINKLIBS)
 LINKOF    = -o 
+LIBU      = cc $(LINKFLAGSDEF) $(LDFLAGS) -Wl,-soname,libicc.so.$(ICCLIB_SOVERSION) $(LINKLIBS) -o
 
 .SUFFIXES:
 .SUFFIXES: .c $(SUFLIB) $(SUFOBJ) $(SUFEXE)