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Date: Mon, 4 Mar 2024 23:41:13 +0100
From: Mark Wielaard <mark@klomp.org>
To: Nick Clifton <nickc@redhat.com>
Cc: annobin@sourceware.org
Subject: Re: =?utf-8?B?4pigIEJ1aWxkYm8=?= =?utf-8?Q?t?= (Sourceware): annobin
 - failed compile (failure) (master)
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Hi Nick,

On Mon, Mar 04, 2024 at 10:48:23AM +0000, Nick Clifton wrote:
> >This one does have clang++ but fails with:
> >
> >make[1]: Leaving directory '/home/builder/shared/bb3/worker/annobin-rawhide-x86_64/build/clang-plugin'
> >annobin.cpp:15:10: fatal error: 'clang/Frontend/FrontendPluginRegistry.h' file not found
> >    15 | #include "clang/Frontend/FrontendPluginRegistry.h"
> 
> >Is there a missing package?
> 
> Yes: clang-devel

OK, found it. For Fedora based distros you now need:
 clang clang-devel llvm-devel
And for Debian based distros you need:
 clang libclang-dev llvm

But on Deban based systems the headers and libraries are installed in
an llvm version specific location. You can find them using
llvm-config.  Luckily this also works for the unversioned llvm on
Fedora bases systems:

(debian) llvm-config --cxxflags
-I/usr/lib/llvm-14/include -std=c++14   -fno-exceptions -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS

(debian) llvm-config --ldflags --system-libs
-L/usr/lib/llvm-14/lib

(fedora) llvm-config --cxxflags
-I/usr/include -std=c++17   -fno-exceptions -funwind-tables -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
(fedora) llvm-config --ldflags --system-libs
-L/usr/lib64

I don't know how hard that is to incorporate in the configure/automake
scripts.

Cheers,

Mark