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

[Chris Bieneman]

Takumi fixed that issue with r238628.

Thanks,
-Chris

> On May 29, 2015, at 4:24 PM, Steve King <steve at metrokings.com> wrote:
> 
> It seems the fix for Bug 19462 causes my stand-alone build of Clang to die with
> 
> CMake Error at CMakeLists.txt:528 (install):
>  install EXPORT given no DESTINATION!
> 
> Any pointers?
> 
> On Thu, May 28, 2015 at 8:22 AM, Chris Bieneman <beanz at apple.com> wrote:
>> 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). 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 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).
>> 
>> * 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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