Merge pull request #81914 from ian-twilightcoder/Isystem-fix

ian-twilightcoder · web-flow · commit 9a4ba6f5e377 · 2025-06-02T20:02:09.000-07:00
[Frontend] -Isystem doesn't work everywhere -I does
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
@@ -261,7 +261,7 @@ void ToolChain::addCommonFrontendArgs(const OutputInfo &OI,
     arguments.push_back("-color-diagnostics");
   }
 
-  inputArgs.AddAllArgs(arguments, options::OPT_I);
+  inputArgs.addAllArgs(arguments, {options::OPT_I, options::OPT_Isystem});
   inputArgs.addAllArgs(arguments, {options::OPT_F, options::OPT_Fsystem});
   inputArgs.AddAllArgs(arguments, options::OPT_vfsoverlay);
 

Original file line number	Diff line number	Diff line change
`@@ -261,7 +261,7 @@ void ToolChain::addCommonFrontendArgs(const OutputInfo &OI,`
`261`	`261`	`arguments.push_back("-color-diagnostics");`
`262`	`262`	`}`
`263`	`263`
`264`		`- inputArgs.AddAllArgs(arguments, options::OPT_I);`
	`264`	`+ inputArgs.addAllArgs(arguments, {options::OPT_I, options::OPT_Isystem});`
`265`	`265`	`inputArgs.addAllArgs(arguments, {options::OPT_F, options::OPT_Fsystem});`
`266`	`266`	`inputArgs.AddAllArgs(arguments, options::OPT_vfsoverlay);`
`267`	`267`