add target os for cross-compilation

1 files changed, 19 insertions, 0 deletions

diff --git a/xmake/core/package/package.lua b/xmake/core/package/package.lua
index 398c89285..459b1e573 100644
--- a/xmake/core/package/package.lua
+++ b/xmake/core/package/package.lua
@@ -113,6 +113,15 @@ function _instance:arch()
     return config.get("arch") or os.arch()
 end
 
+-- get the target os
+function _instance:os()
+    local requireinfo = self:requireinfo()
+    if requireinfo and requireinfo.os then
+        return requireinfo.os
+    end
+    return platform.os()
+end
+
 -- get the build mode
 function _instance:mode()
     return self:debug() and "debug" or "release"
@@ -143,6 +152,16 @@ function _instance:is_arch(...)
     end
 end
 
+-- the current platform is belong to the given target os?
+function _instance:is_os(...)
+    local os = self:os()
+    for _, v in ipairs(table.join(...)) do
+        if v and os == v then
+            return true
+        end
+    end
+end
+
 -- get the package alias
 function _instance:alias()
     local requireinfo = self:requireinfo()