Bug#760433: libav: FTBFS on x32: Invalid inline assembly

[Sebastian Ramacher]

Control: clone -1 -2
Control: retitle -2 libav: use build profiles to break circular dependencies
Control: tags -2 = patch stretch

On 2014-09-13 07:56:40, Reinhard Tartler wrote:
> Regarding porting, please have a look at
> http://anonscm.debian.org/cgit/pkg-multimedia/libav.git/tree/debian/README.source:
> 
> 
> Circular Build-Depends and bootstrapping libav on new architectures
> ===================================================================
> 
> libav is involved in several circular build-dependencies that give porters a
> hard time (c.f. #671302) at bootstrapping, e.g.:
> 
>  libav -> frei0r -> opencv -> libav
>  libav -> opencv -> libav
>  libav -> x264 -> libav
>  libav -> x264 -> gpac -> libav
> 
> However, please note that all these libraries are strictly optional to libav
> and are only enabled at build time if available. For bootstrapping purposes
> it is thus perfectly sufficient to remove all *-dev packages from the
> Build-Depends field in debian/control and generate packages with a reduced
> feature set that are still usable to build other packages.
> 
> Using the nomenclature of the EmdebianSprint2011 [0,1] one would write e.g.:
> 
>  Build-Depends-Bootstrap1:
>   debhelper (>= 9)

After the release of jessie and once the buildds have been upgraded,
build profiles [1] will be available. The following patch should then be
enough to break the Build-Depends cycle:

From 150724d38cb335fdc8fceae95e1905d694c278eb Mon Sep 17 00:00:00 2001
From: Sebastian Ramacher <sramacher at debian.org>
Date: Wed, 7 Jan 2015 21:48:22 +0100
Subject: [PATCH] Use build profiles to break Build-Depends cycle

---
 debian/control | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/debian/control b/debian/control
index a81227d..1696564 100644
--- a/debian/control
+++ b/debian/control
@@ -17,7 +17,8 @@ Build-Depends-Indep:
  doxygen
 Build-Depends:
  debhelper (>= 9),
- frei0r-plugins-dev,
+ dpkg-dev (>= 1.17.14~),
+ frei0r-plugins-dev <!stage1>,
  libasound2-dev [linux-any],
  libbz2-dev,
  libcdio-cdda-dev,
@@ -31,7 +32,7 @@ Build-Depends:
  libmp3lame-dev,
  libopencore-amrnb-dev,
  libopencore-amrwb-dev,
- libopencv-dev,
+ libopencv-dev <!stage1>,
  libopenjpeg-dev,
  libopus-dev (>= 1.0.1),
  libpulse-dev,
@@ -49,7 +50,7 @@ Build-Depends:
  libvorbis-dev,
  libvpx-dev,
  libx11-dev,
- libx264-dev,
+ libx264-dev <!stage1>,
  libx265-dev,
  libxext-dev,
  libxfixes-dev,
-- 
2.1.4


I have not commited it yet in case we want to upload the experimental
branch before jessie has been release.

I'm creating a new bug to track the Build-Depends cycle independently.

Cheers

[1] https://wiki.debian.org/BuildProfileSpec
-- 
Sebastian Ramacher
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