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Message-ID: <CAK4o1Ww-BRdU1Es6ZkVf4Ra7bAMkpLcna9jMfMwj122MTEHpZQ@mail.gmail.com>
Date: Tue, 26 May 2015 08:48:56 +0100
From: Justin Cormack <justin@...cialbusservice.com>
To: musl@...ts.openwall.com
Cc: Paulo Castro <p.oliveira.castro@...il.com>, simoes.lucas.silva@...il.com
Subject: Re: Using Musl with LLVM/Clang
On 26 May 2015 at 02:53, Shiz <hi@...z.me> wrote:
>> On 26 May 2015, at 03:37, Rich Felker <dalias@...c.org> wrote:
>>
>> The main reason we need a specfile for gcc rather than just -nostdinc
>> and -nostdlib is that the latter does not suppress search of the
>> default library paths, just the libraries, i.e. it removes the -l's
>> but not the -L's. If you can find a way to remove the default -L's for
>> clang then it should be easy.
>>
>> Rich
>
> Sadly, after looking at the clang driver source[1], there seems to be no
> such option: it unconditionally adds the library paths. Unless there’s
> some way to influence ToolChain.getFilePaths(), it doesn’t seem like it
> can be done without modifying the clang source code.
You can use clang with --sysroot, if everything is under the same root path.
In theory if clang had support you could just use -target or just
rename the compiler and it would just compile for Musl, according to
the docs http://clang.llvm.org/docs/CrossCompilation.html but I am
guessing that needs some upstream support, would be nice to add.
Justin
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