Make libasteriskssl.so symlink use a relative path.

This was causing issues when using DESTDIR, since the path to which the link
pointed is not likely to exist (and not useful to exist) on the target system.

(issue ASTNOW-284)
........

Merged revisions 378073 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@378074 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/Makefile

@@ -259,7 +259,7 @@ bininstall:
 ifeq ($(AST_ASTERISKSSL),yes)
 ifeq ($(findstring darwin,$(OSARCH)),) # not Darwin
 	$(INSTALL) -m 755 $(ASTSSL_LIB).$(ASTSSL_SO_VERSION) "$(DESTDIR)$(ASTLIBDIR)/"
-	$(LN) -sf "$(DESTDIR)$(ASTLIBDIR)/$(ASTSSL_LIB).$(ASTSSL_SO_VERSION)" "$(DESTDIR)$(ASTLIBDIR)/$(ASTSSL_LIB)"
+	$(LN) -sf $(ASTSSL_LIB).$(ASTSSL_SO_VERSION) "$(DESTDIR)$(ASTLIBDIR)/$(ASTSSL_LIB)"
 else # Darwin
 	$(INSTALL) -m 755 $(ASTSSL_LIB) "$(DESTDIR)$(ASTLIBDIR)/"
 endif