[cfe-dev] [LLVMdev] is configure+make dead yet?

Ashok Nalkund ashoknn at qualcomm.com
Thu Jun 21 00:50:35 PDT 2012

On 6/20/2012 11:55 PM, Ashok Nalkund wrote:
> On 6/20/2012 11:00 PM, "C. Bergström" wrote:
>> On 06/21/12 12:47 PM, Chandler Carruth wrote:
>>> On Wed, Jun 20, 2012 at 5:13 PM, Nick Lewycky <nlewycky at google.com
>>> <mailto:nlewycky at google.com>> wrote:
>>>       Is there anybody who is certain that our autoconf dependency needs
>>>       to stay around? Are there developers stuck on systems that don't
>>>       have a recent enough cmake in their most recent release, or maybe
>>>       are using some features from configure+make that the cmake build
>>>       system doesn't implement?
>>>       If nobody pipes up, I might actually try actually removing it!
>>> FWIW, I'm also under the impression that Apple's internal release
>>> process depends on configure+make as well.
>> clang/llvm are advertised as being independent of Apple.  There's a ton
>> of companies using the project, but we should let them speak-up if they
>> *really* need it to stay around.
>> +1 for removing autoconf dep
> I posted earlier but seems it didnt catch anybody's attention.
> Please dont remove it yet. I'm relying on configure's '--enable-libcpp'
> flag to compile LLVM/clang using clang++ and libc++. I couldnt find an
> equivalent using cmake. Please see my mails titled "Compiling libc++
> from within llvm (3.1)" and "Build llvm/clang with cmake vs configure
> produces different set of artifacts".
> If you have any suggestions, I'm most willing to try it out. I dont know
> enough about CMake but I tried to go through the cmake build files.
> Thanks,
> ashok

I managed to use:

CC=clang CXX=clang++ CXXFLAGS="-stdlib=libc++ -I <libcxxdir..." cmake...

  to cause it to use clang++ with libc++ to build LLVM/clang.

But now I run into bug 10646 
(http://llvm.org/bugs/show_bug.cgi?id=10646). Can somebody comment on 
when the patch will be available on trunk. I can apply the patch to my 
local copy but would like to avoid local changes.


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