Added AbsSymLink rule.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1941 a95241bf-73f2-0310-859d-f6bbb57e9c96

Jamrules

@@ -938,6 +938,32 @@ rule RelSymLink
 	LocalClean clean : $(target) ;
 }
 
+rule AbsSymLink
+{
+	# RelSymLink <link> : <link target> : <link dir>
+	# Creates an absolute symbolic link from <link> to <link target>.
+	# <link> and <link target> must be usual targets. If <link dir> is
+	# given, then it is set as LOCATE directory on <link>.
+
+	LocalDepends files : $(1) ;
+	Depends $(1) : $(2) ;
+	if $(3) {
+		MakeLocate $(1) : $(3) ;
+	}
+	SEARCH on $(2) += $(SEARCH_SOURCE) ;
+	LocalClean clean : $(1) ;
+}
+
+actions AbsSymLink
+{
+	target="$(2)"
+	case "$target" in
+		/*) ;;
+		*) target=`pwd`/"$target";;
+	esac
+	$(RM) "$(1)" && $(LN) -s "$target" "$(1)"
+}
+
 #-------------------------------------------------------------------------------
 # Low-level OBOS utility rules
 #-------------------------------------------------------------------------------