Re: [cfe-users] Clang (with Visual Studio) wrongly complains about missing variables

2021-09-21 Thread John Emmas via cfe-users
Many thanks Jeff & David, Overnight I remembered that Visual Studio itself offers a specific option to disable inline function expansion. For MSVC itself, this gets done by setting a compiler option called "/Ob" ("/Ob0" indicates disabled). If "/Ob0" isn't specified at compile time, inlining

Re: [cfe-users] Clang (with Visual Studio) wrongly complains about missing variables

2021-09-21 Thread Jeffrey Walton via cfe-users
> ... > I checked this morning and sure enough the "/Ob" option doesn't get sent > if I build with VS2019 and Clang - so I'm guessing "/Ob0" wouldn't be > recognised by Clang's compiler? > > So does Clang have it's own command-line option to disable inline > function expansion? Or is that somethi

Re: [cfe-users] Clang (with Visual Studio) wrongly complains about missing variables

2021-09-21 Thread John Emmas via cfe-users
On 21/09/2021 13:49, Jeffrey Walton wrote: The U&L option is -fno-inline. But I think Clang has an option to consume MSVC style options, so you may be able to use /Ob. I think you can check which MSVC style options Clang accepts with 'clang-cl /?' or 'clang-cl -?'. Thanks again Jeff and you'

Re: [cfe-users] Clang (with Visual Studio) wrongly complains about missing variables

2021-09-21 Thread John Emmas via cfe-users
I just found something else which might be significant... I noticed that when linking this exe, I had a linker option enabled called /FORCE:MULTIPLE If I remove that option, the Clang linker then gives me a list of about a dozen duplicated symbols. And with that option I get a similarly siz