Re: [gentoo-dev] net-misc/asterisk fails to compile: clang/LLVM: bug 731280

2020-08-28 Thread Sergei Trofimovich
On Fri, 28 Aug 2020 10:10:02 +0200
Fabian Groffen  wrote:

> On 28-08-2020 08:52:09 +0100, Sergei Trofimovich wrote:
> > On Fri, 28 Aug 2020 07:37:54 +0100
> > Sergei Trofimovich  wrote:
> >   
> > > On Fri, 28 Aug 2020 08:15:47 +0200
> > > Jaco Kroon  wrote:
> > >   
> > > > Hi All,
> > > > 
> > > > https://bugs.gentoo.org/731280
> > > > 
> > > > Summary:
> > > > 
> > > > This machine uses a clang/LLVM toolchain.
> > > > Asterisk fails to compile, ./configure fails with:
> > > > 
> > > > checking for RAII support... checking for clang -fblocks...
> > > > configure: error: BlocksRuntime is required for clang, please install
> > > > libblocksruntime
> > > > 
> > > > I suspect this explains the issue:
> > > > 
> > > > https://github.com/mackyle/blocksruntime
> > > > 
> > > > I have no idea how to actually solve this.
> > > 
> > > honggfuzz also needs it as it happens to use -fblocks on clang:
> > > https://bugs.gentoo.org/729256
> > > 
> > > We need to package the library. I can give it a try.  
> > 
> > Packaged library as sys-libs/blocksruntime:
> > 
> > https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ae376c73ef197d6c7aa619e821c436ccab0cd77e
> > 
> > Usage example for app-forensics/honggfuzz:
> > 
> > https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fd841336dfdefbc14907e2d9b1eb1a1a3f5f8b8e
> >   
> 
> This is cool, but shouldn't it be something like openmp?  (e.g. blocks)

You mean when -fopenmp is present in LDFLAGS compiler itself pulls in runtime?
That would be ideal. But currently clang does not install blocks runtime.

> There is no reason blocks have to be used if not on macOS (where system
> headers use blocks features).

Sure. As with most extensions it can be avoided. Alas some projects use it
is for convenience. At least honggfuzz uses blocks with __attribute__(cleanup)
to emulate lexical scope destructors:

https://github.com/google/honggfuzz/blob/03bbc2de983f13cfcd880f72e3a56582c4f82f24/libhfcommon/util.h#L57

-- 

  Sergei



Re: [gentoo-dev] net-misc/asterisk fails to compile: clang/LLVM: bug 731280

2020-08-28 Thread Fabian Groffen
On 28-08-2020 08:52:09 +0100, Sergei Trofimovich wrote:
> On Fri, 28 Aug 2020 07:37:54 +0100
> Sergei Trofimovich  wrote:
> 
> > On Fri, 28 Aug 2020 08:15:47 +0200
> > Jaco Kroon  wrote:
> > 
> > > Hi All,
> > > 
> > > https://bugs.gentoo.org/731280
> > > 
> > > Summary:
> > > 
> > > This machine uses a clang/LLVM toolchain.
> > > Asterisk fails to compile, ./configure fails with:
> > > 
> > > checking for RAII support... checking for clang -fblocks...
> > > configure: error: BlocksRuntime is required for clang, please install
> > > libblocksruntime
> > > 
> > > I suspect this explains the issue:
> > > 
> > > https://github.com/mackyle/blocksruntime
> > > 
> > > I have no idea how to actually solve this.  
> > 
> > honggfuzz also needs it as it happens to use -fblocks on clang:
> > https://bugs.gentoo.org/729256
> > 
> > We need to package the library. I can give it a try.
> 
> Packaged library as sys-libs/blocksruntime:
> 
> https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ae376c73ef197d6c7aa619e821c436ccab0cd77e
> 
> Usage example for app-forensics/honggfuzz:
> 
> https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fd841336dfdefbc14907e2d9b1eb1a1a3f5f8b8e

This is cool, but shouldn't it be something like openmp?  (e.g. blocks)

There is no reason blocks have to be used if not on macOS (where system
headers use blocks features).

Thanks,
Fabian


-- 
Fabian Groffen
Gentoo on a different level


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Re: [gentoo-dev] net-misc/asterisk fails to compile: clang/LLVM: bug 731280

2020-08-28 Thread Sergei Trofimovich
On Fri, 28 Aug 2020 07:37:54 +0100
Sergei Trofimovich  wrote:

> On Fri, 28 Aug 2020 08:15:47 +0200
> Jaco Kroon  wrote:
> 
> > Hi All,
> > 
> > https://bugs.gentoo.org/731280
> > 
> > Summary:
> > 
> > This machine uses a clang/LLVM toolchain.
> > Asterisk fails to compile, ./configure fails with:
> > 
> > checking for RAII support... checking for clang -fblocks...
> > configure: error: BlocksRuntime is required for clang, please install
> > libblocksruntime
> > 
> > I suspect this explains the issue:
> > 
> > https://github.com/mackyle/blocksruntime
> > 
> > I have no idea how to actually solve this.  
> 
> honggfuzz also needs it as it happens to use -fblocks on clang:
> https://bugs.gentoo.org/729256
> 
> We need to package the library. I can give it a try.

Packaged library as sys-libs/blocksruntime:

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ae376c73ef197d6c7aa619e821c436ccab0cd77e

Usage example for app-forensics/honggfuzz:

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fd841336dfdefbc14907e2d9b1eb1a1a3f5f8b8e

-- 

  Sergei



Re: [gentoo-dev] net-misc/asterisk fails to compile: clang/LLVM: bug 731280

2020-08-28 Thread Sergei Trofimovich
On Fri, 28 Aug 2020 08:15:47 +0200
Jaco Kroon  wrote:

> Hi All,
> 
> https://bugs.gentoo.org/731280
> 
> Summary:
> 
> This machine uses a clang/LLVM toolchain.
> Asterisk fails to compile, ./configure fails with:
> 
> checking for RAII support... checking for clang -fblocks...
> configure: error: BlocksRuntime is required for clang, please install
> libblocksruntime
> 
> I suspect this explains the issue:
> 
> https://github.com/mackyle/blocksruntime
> 
> I have no idea how to actually solve this.

honggfuzz also needs it as it happens to use -fblocks on clang:
https://bugs.gentoo.org/729256

We need to package the library. I can give it a try.

-- 

  Sergei



[gentoo-dev] net-misc/asterisk fails to compile: clang/LLVM: bug 731280

2020-08-28 Thread Jaco Kroon
Hi All,

https://bugs.gentoo.org/731280

Summary:

This machine uses a clang/LLVM toolchain.
Asterisk fails to compile, ./configure fails with:

checking for RAII support... checking for clang -fblocks...
configure: error: BlocksRuntime is required for clang, please install
libblocksruntime

I suspect this explains the issue:

https://github.com/mackyle/blocksruntime

I have no idea how to actually solve this.

If someone can help that would be great, else I have no choice but to
mark as CANTFIX.

Kind Regards,
Jaco