[LLVMdev] [RFC] Late May Update: Progress report on CMake build system's ability to replace autoconf

Thu May 28 23:37:28 PDT 2015

Do they really allways put them into Release/bin or rather $<CONFIG>/bin?

--
Johannes S. Mueller-Roemer, MSc
Wiss. Mitarbeiter - Interactive Engineering Technologies (IET)

Fraunhofer-Institut für Graphische Datenverarbeitung IGD
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From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Chris Bieneman
Sent: Thursday, May 28, 2015 22:36
To: Yaron Keren
Cc: LLVM Developers Mailing List
Subject: Re: [LLVMdev] [RFC] Late May Update: Progress report on CMake build system's ability to replace autoconf

I sent out a patch for review.

http://reviews.llvm.org/D10102<https://urldefense.proofpoint.com/v2/url?u=http-3A__reviews.llvm.org_D10102&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=CnMJsu0f0vSR1CHLloYJapdWWCpu9GRn3nQydr1tcoc&s=8zJYqD7TktfFqlUjdI8Gcv-ULAGh72ZOOZ9KumO1PZo&e=>

-Chris

On May 28, 2015, at 9:48 AM, Yaron Keren <yaron.keren at gmail.com<mailto:yaron.keren at gmail.com>> wrote:

Thanks!

2015-05-28 18:56 GMT+03:00 Chris Bieneman <beanz at apple.com<mailto:beanz at apple.com>>:

On May 28, 2015, at 8:37 AM, Yaron Keren <yaron.keren at gmail.com<mailto:yaron.keren at gmail.com>> wrote:

Probably not a blocker for replacing autoconf, while at it:
Bug 23468 - LLVM_OPTIMIZED_TABLEGEN does not work with Visual Studio.
It makes the tablegenning really slow.

This is actually a feature of the CMake build system that the autoconf one doesn’t have, so this is not related to replacing autoconf.

That said, I’ll try to address this soon.

-Chris

2015-05-28 18:22 GMT+03:00 Chris Bieneman <beanz at apple.com<mailto:beanz at apple.com>>:
Hi all,

Time for another update on the status of the CMake build system.

Completed:
* Bug 18496 - [cmake] .S assembly files not compiled by cmake in libclang_rt.ARCH
* Bug 22725 - lldb build with cmake fails with "Program error: Invalid parameters entered, -h for help. "
* Update GettingStarted to prefer CMake

Still Outstanding:

* Bug 14109 - CMake build for compiler-rt should use just-built clang
 - No Update: Still some small issues to resolve.

* Bug 19462 - Use the INSTALL(EXPORT ...) to export CMake definitions
 - I commented in the review for this today (http://reviews.llvm.org/D7623<https://urldefense.proofpoint.com/v2/url?u=http-3A__reviews.llvm.org_D7623&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=CnMJsu0f0vSR1CHLloYJapdWWCpu9GRn3nQydr1tcoc&s=sUUTJf37gKTcDMx58mdbge8nZhoWhIh5vIfTXTa8ibI&e=>). I think the patches I have are good to land, but Stephen Kelly made some other suggestions in the bug we should consider separately.

* Bug 19875 - libraries and executables need different rpaths
 - No Update: Still outstanding, I don't think this is a blocker.

* Bug 21561 - Update release scripts to use CMake
 - No Update: Still outstanding and blocking removal of autoconf

* Bug 21562 - Add a CMake equivalent for make/platform/clang_darwin.mk<https://urldefense.proofpoint.com/v2/url?u=http-3A__clang-5Fdarwin.mk_&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=CnMJsu0f0vSR1CHLloYJapdWWCpu9GRn3nQydr1tcoc&s=wt0UGa6r8x3w45AVGzPGHAjLVWguk3nXjPFh74rdxxM&e=> in compiler_rt
 - I've looked at this a bit on and off. It is unfortunately a hard problem. I think it would be easier if CMake had better support for setting clang's sysroot and arch flags. To that end I've filed a bug against CMake (http://www.cmake.org/Bug/view.php?id=15591<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cmake.org_Bug_view.php-3Fid-3D15591&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=CnMJsu0f0vSR1CHLloYJapdWWCpu9GRn3nQydr1tcoc&s=umuCvLy-UFJkds60slnEM9ROl2OiO4qvtQbhF7MhIF8&e=>).

* Bug 21568 - Cannot add rpath
 - No Update: Not a blocker.

Other issues not tracked by bugs:

* FreeBSD seemed to have problems with CMake identifying itself as amd64 causing x86_64 tests to fail
* Migrating buildbots
* We need to make sure libc++ works properly on Darwin
* Put together a “cheat sheet” document for transitioning
 - If you have an autoconf workflow you’d like to see in the cheat sheet please send your commands my way and I‘ll assemble the cheat sheet.

If there is anything I’m missing please let me know. Thanks,

Thanks,
-Chris
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