4 files changed, 63 insertions, 14 deletions
diff --git a/xmake/core/base/interpreter.lua b/xmake/core/base/interpreter.lua
index 12f258812..24fa05185 100644
--- a/xmake/core/base/interpreter.lua
+++ b/xmake/core/base/interpreter.lua
@@ -242,8 +242,8 @@ function interpreter:_api_register_xxx_values(scope_kind, action, apifunc, ...)
         local scope = scopes._CURRENT or root
         assert(scope)
 
-        -- set values? mark as "override"
-        if apiname and action ~= "add" then
+        -- set values (set, on, before, after ...)? mark as "override"
+        if apiname and (action ~= "add" or action ~= "del") then
             scope["__override_" .. apiname] = true
         end
 
@@ -446,9 +446,9 @@ function interpreter:_handle(scope, remove_repeat, enable_filter)
     local results = {}
     for name, values in pairs(scope) do
 
-        -- remove repeat first
+        -- remove repeat first for each slice with deleted item (__del_xxx)
         if remove_repeat and not table.is_dictionary(values) then
-            values = table.unique(values)
+            values = table.unique(values, function (v) return v:startswith("__del_") end)
         end
 
         -- filter values
@@ -1206,6 +1206,33 @@ function interpreter:api_register_set_pathes(scope_kind, ...)
     self:_api_register_xxx_values(scope_kind, "set", implementation, ...)
 end
 
+-- register api for del_pathes
+function interpreter:api_register_del_pathes(scope_kind, ...)
+
+    -- check
+    assert(self)
+
+    -- define implementation
+    local implementation = function (self, scope, name, ...)
+
+        -- translate pathes
+        local values = {...}
+        local pathes = self:_api_translate_pathes(values)
+
+        -- mark these pathes as deleted
+        local pathes_deleted = {}
+        for _, pathname in ipairs(pathes) do
+            table.insert(pathes_deleted, "__del_" .. pathname)
+        end
+
+        -- save values
+        scope[name] = table.join2(scope[name] or {}, pathes_deleted)
+    end
+
+    -- register implementation
+    self:_api_register_xxx_values(scope_kind, "del", implementation, ...)
+end
+
 -- register api for add_pathes
 function interpreter:api_register_add_pathes(scope_kind, ...)
 
@@ -1317,7 +1344,7 @@ function interpreter:api_define(apis)
 
                 -- get function prefix
                 local prefix = nil
-                for _, name in ipairs({"set", "add", "on", "before", "after"}) do
+                for _, name in ipairs({"set", "add", "del", "on", "before", "after"}) do
                     if funcname:startswith(name .. "_") then
                         prefix = name
                         break
diff --git a/xmake/core/base/table.lua b/xmake/core/base/table.lua
index 410b4a329..3b4013232 100644
--- a/xmake/core/base/table.lua
+++ b/xmake/core/base/table.lua
@@ -280,7 +280,7 @@ function table.wrap(object)
 end
 
 -- remove repeat from the given array
-function table.unique(array)
+function table.unique(array, barrier)
 
     -- remove repeat
     if type(array) == "table" then
@@ -292,6 +292,13 @@ function table.unique(array)
             local exists = {}
             local unique = {}
             for _, v in ipairs(array) do
+
+                -- exists barrier? clear the current existed items
+                if barrier and barrier(v) then
+                    exists = {}
+                end
+
+                -- add unique item
                 if type(v) == "string" then
                     if not exists[v] then
                         exists[v] = true
diff --git a/xmake/core/project/project.lua b/xmake/core/project/project.lua
index dc628feb1..7c9ab62b8 100644
--- a/xmake/core/project/project.lua
+++ b/xmake/core/project/project.lua
@@ -248,6 +248,8 @@ function project.interpreter()
         ,   "target.set_objectdir"
             -- target.add_xxx
         ,   "target.add_files"
+            -- target.del_xxx
+        ,   "target.del_files"
         }
     ,   script =
         {
diff --git a/xmake/core/project/target.lua b/xmake/core/project/target.lua
index c2f9d852b..bfdc62b20 100644
--- a/xmake/core/project/target.lua
+++ b/xmake/core/project/target.lua
@@ -374,6 +374,13 @@ function target:sourcefiles()
     local sourcefiles = {}
     for _, file in ipairs(table.wrap(files)) do
 
+        -- mark as deleted files?
+        local deleted = false
+        if file:startswith("__del_") then
+            file = file:sub(7)
+            deleted = true
+        end
+
         -- normalize *.[o|obj] and [lib]*.[a|lib] filename
         for _, pattern in ipairs(patterns) do
             file, count = file:gsub(pattern[1], target.filename(pattern[2], pattern[3]))
@@ -386,7 +393,7 @@ function target:sourcefiles()
         -- match source files
         local results = os.match(file)
         if #results == 0 then
-            utils.warning("cannot match add_files(\"%s\")", file)
+            utils.warning("cannot match %s_files(\"%s\")", utils.ifelse(deleted, "del", "add"), file)
         end
 
         -- process source files
@@ -397,22 +404,28 @@ function target:sourcefiles()
                 sourcefile = path.relative(sourcefile, os.projectdir())
             end
 
-            -- save it
-            sourcefiles[i] = sourcefile
-            i = i + 1
+            -- add or delete it
+            if deleted then
+                sourcefiles[sourcefile] = nil
+            else
+                sourcefiles[sourcefile] = true
+            end
         end
     end
 
-    -- remove repeat files
-    sourcefiles = table.unique(sourcefiles)
+    -- make last source files
+    local sourcefiles_last = {}
+    for sourcefile, _ in pairs(sourcefiles) do
+        table.insert(sourcefiles_last, sourcefile)
+    end
 
     -- cache it
     if cache then
-        self._SOURCEFILES = sourcefiles
+        self._SOURCEFILES = sourcefiles_last
     end
 
     -- ok? modified?
-    return sourcefiles, not cache
+    return sourcefiles_last, not cache
 end
 
 -- get object file from source file