Add versioned symlinks for install target

Makefile

@@ -6,6 +6,9 @@ OBJ=net.o hiredis.o sds.o async.o
 BINS=hiredis-example hiredis-test
 LIBNAME=libhiredis
 
+HIREDIS_MAJOR=0
+HIREDIS_MINOR=10
+
 uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
 OPTIMIZATION?=-O3
 ifeq ($(uname_S),SunOS)
@@ -14,8 +17,10 @@ ifeq ($(uname_S),SunOS)
   LDFLAGS?=-L.
   DYLIBSUFFIX=so
   STLIBSUFFIX=a
+  DYLIB_MINOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR)
+  DYLIB_MAJOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
   DYLIBNAME?=$(LIBNAME).$(DYLIBSUFFIX)
-  DYLIB_MAKE_CMD?=$(CC) -G -o $(DYLIBNAME)
+  DYLIB_MAKE_CMD?=$(CC) -G -o $(DYLIBNAME) -h $(DYLIB_MINOR_NAME)
   STLIBNAME?=$(LIBNAME).$(STLIBSUFFIX)
   STLIB_MAKE_CMD?=ar rcs $(STLIBNAME)
 else
@@ -26,8 +31,10 @@ ifeq ($(uname_S),Darwin)
   OBJARCH?=-arch i386 -arch x86_64
   DYLIBSUFFIX=dylib
   STLIBSUFFIX=a
+  DYLIB_MINOR_NAME?=$(LIBNAME).$(HIREDIS_MAJOR).$(HIREDIS_MINOR).$(DYLIBSUFFIX)
+  DYLIB_MAJOR_NAME?=$(LIBNAME).$(HIREDIS_MAJOR).$(DYLIBSUFFIX)
   DYLIBNAME?=$(LIBNAME).$(DYLIBSUFFIX)
-  DYLIB_MAKE_CMD?=libtool -dynamic -o $(DYLIBNAME) -lm $(DEBUG) -
+  DYLIB_MAKE_CMD?=libtool -dynamic -o $(DYLIBNAME) -install_name $(DYLIB_MINOR_NAME) -lm $(DEBUG) -
   STLIBNAME?=$(LIBNAME).$(STLIBSUFFIX)
   STLIB_MAKE_CMD?=libtool -static -o $(STLIBNAME) -
 else
@@ -36,8 +43,10 @@ else
   LDFLAGS?=-L.
   DYLIBSUFFIX=so
   STLIBSUFFIX=a
+  DYLIB_MINOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR)
+  DYLIB_MAJOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
   DYLIBNAME?=$(LIBNAME).$(DYLIBSUFFIX)
-  DYLIB_MAKE_CMD?=gcc -shared -Wl,-soname,$(DYLIBNAME) -o $(DYLIBNAME)
+  DYLIB_MAKE_CMD?=gcc -shared -Wl,-soname,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME)
   STLIBNAME?=$(LIBNAME).$(STLIBSUFFIX)
   STLIB_MAKE_CMD?=ar rcs $(STLIBNAME)
 endif
@@ -106,7 +115,11 @@ dep:
 install: $(DYLIBNAME) $(STLIBNAME)
 	mkdir -p $(INSTALL_INCLUDE_PATH) $(INSTALL_LIBRARY_PATH)
 	$(INSTALL) hiredis.h async.h adapters $(INSTALL_INCLUDE_PATH)
-	$(INSTALL) $(DYLIBNAME) $(STLIBNAME) $(INSTALL_LIBRARY_PATH)
+	$(INSTALL) $(DYLIBNAME) $(INSTALL_LIBRARY_PATH)/$(DYLIB_MINOR_NAME)
+	cd $(INSTALL_LIBRARY_PATH) && ln -sf $(DYLIB_MINOR_NAME) $(DYLIB_MAJOR_NAME)
+	cd $(INSTALL_LIBRARY_PATH) && ln -sf $(DYLIB_MAJOR_NAME) $(DYLIBNAME)
+	$(INSTALL) $(STLIBNAME) $(INSTALL_LIBRARY_PATH)
+
 
 32bit:
 	@echo ""