[llvm-dev] Using LLVM from Autoconf

[Diego Novillo via llvm-dev]

Jack's correct about moving this to autoconf at gnu.org.  However, you
can start by cutting and pasting the configure.ac bits from the same
github repo I pointed you to earlier today.  The actual commit that
brought those changes may be easier to use as a template.

https://github.com/google/autofdo/pull/30/commits/0029f4be825f851b9d99bcd19dcb34fd59f1775e

On Wed, Mar 23, 2016 at 4:35 PM, Russell Wallace via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> I'm writing a C++ program that uses LLVM, and trying to build it with
> autotools. Thanks to Diego Novillo, there is an M4 macro that detects
> llvm-config: https://github.com/google/autofdo/blob/master/m4/ax_llvm.m4
>
> How do I use it? Given that I've written a basic configure.ac that can
> compile a basic C++ program, how do I modify it to make use of the macro?
> And should the macro be copied into the project directory as a separate file
> or pasted into configure.ac? I tried a Google search for how to include a
> macro from configure.ac but I'm not clear on what the results mean.
>
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