--- include/Make/Shlib.make.orig	2010-03-22 14:07:45.000000000 +0100
+++ include/Make/Shlib.make	2010-03-22 14:08:21.000000000 +0100
@@ -1,6 +1,9 @@
 # common dependencies and rules for building shared libraries
 
-SHLIB = $(ARCH_LIBDIR)/$(SHLIB_PREFIX)$(SHLIB_NAME).$(GRASS_VERSION_NUMBER)$(SHLIB_SUFFIX)
+GRASS_MAJOR=6
+GRASS_MINOR=4
+
+SHLIB = $(ARCH_LIBDIR)/$(SHLIB_PREFIX)$(SHLIB_NAME)$(SHLIB_SUFFIX).$(GRASS_VERSION_NUMBER)
 
 # Object that calls _setfmode(_O_BINARY) which must be linked to each DLL on Windows
 ifdef MINGW
@@ -15,8 +18,9 @@
 LDFLAGS += $(SHLIB_LDFLAGS)
 
 $(SHLIB): $(SHLIB_OBJS)
-	$(SHLIB_LD) -o $@ $(LDFLAGS) $^ $(EXTRA_LIBS) $(DLLMAIN_OBJ) && \
-	(cd $(ARCH_LIBDIR); ln -f -s $(notdir $@) $(patsubst %.$(GRASS_VERSION_NUMBER)$(SHLIB_SUFFIX),%$(SHLIB_SUFFIX),$@))
+	$(SHLIB_LD) -o $@ -Wl,-soname,lib$(SHLIB_NAME)$(SHLIB_SUFFIX).$(GRASS_MAJOR).$(GRASS_MINOR) $(LDFLAGS) $^ $(EXTRA_LIBS) && \
+		ln -f -s $(notdir $@) $(patsubst %$(SHLIB_SUFFIX).$(GRASS_VERSION_NUMBER),%$(SHLIB_SUFFIX),$@); \
+		ln -f -s $(notdir $@) $(patsubst %$(SHLIB_SUFFIX).$(GRASS_VERSION_NUMBER),%$(SHLIB_SUFFIX).$(GRASS_MAJOR).$(GRASS_MINOR),$@);
 
 shlib: $(SHLIB)