Source: highlight Version: 3.12+svn83-1 Severity: wishlist Tags: patch Hi,
Thanks for taking care of highlight in Debian! As part of this year's "Bootstrappable Debian" Google Summer of Code project I took a look at highlight to break a circular build dependency as noted in the "Feedback Arc Set" section of http://bootstrap.debian.net/amd64/ and, more specifically, at http://bootstrap.debian.net/source/highlight.html and the version-specific pages linked from it. There are two primary goals to my work on this GSoC project: - The first goal is to modify some packages so that they may be built in some limited way ("nocheck", binary-only, or build profiles like "stage1") without some of their usual build dependencies. In most cases this is caused by one or more dependency loops between binary and source packages, so that a source package requires for its building, directly or indirectly, one of its own binary packages to be already built. The modifications make the source build in a limited fashion (not generating documentation, not running tests, not building some of the binary packages) so that this may happen with only the rest of the build dependencies, so Debian may be bootstrapped on a new architecture starting from a very few cross-built toolchain packages and then moving along, source package by source package. - The second goal, which is actually closely related to the first, is that in the process of modifications, any changes (some files not regenerated, others not built at all) can be made with binary package level granularity. This means that if a binary package is built at all during a limited build, then it must have the same contents as the same binary package resulting from a full build. The point here is to avoid breakage if other packages in the archive depend on some functionality provided by the omitted files; if so, it should be obvious that the functionality is missing, and the clearest way to do that is by omitting a full binary package or, rather, delaying its build until the rest of the build dependencies are present. Now, with highlight this is relatively easy - SWIG is only used for building the libhighlight-perl package, not for the actual highlight libraries. So what do you think about the attached patch that checks for a "stage1" build profile specified in the DEB_BUILD_PROFILES variable and, if so, omits the libhighlight-perl package from the build at all? In this iteration, one would also have to manually remove the offending build dependencies from the control file; I will file another bug that makes use of the new <profile.*> restriction and the new Build-Profiles binary stanza header to make this completely automated. However, that would have to wait for the actual introduction of build profile-aware tools in the Debian archive infrastructure. If anything should go wrong with the patch, it is also available at https://gitorious.org/roam-debian-bootstrap/highlight-debian/commits/roam-stage1-build Thanks in advance for your time, and thanks for your work on Debian! G'luck, Peter -- System Information: Debian Release: jessie/sid APT prefers testing APT policy: (990, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.14-2-amd64 (SMP w/4 CPU cores) Locale: LANG=bg_BG.UTF-8, LC_CTYPE=bg_BG.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash -- no debconf information
From 44445ee8bc3e71b655f057fd8f2118b782dc24af Mon Sep 17 00:00:00 2001 From: Peter Pentchev <r...@ringlet.net> Date: Tue, 22 Jul 2014 03:25:16 +0300 Subject: [PATCH] Build without swig in the stage1 build profile. Break a dependency loop as outlined in the version-specific pages at http://bootstrap.debian.net/source/highlight.html --- debian/control | 1 + debian/rules | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/debian/control b/debian/control index 2faabdb..bd893ec 100644 --- a/debian/control +++ b/debian/control @@ -3,6 +3,7 @@ Section: devel Priority: optional Maintainer: Ayman Negm <n...@debian.org> Uploaders: David Bremner <brem...@debian.org> +# For stage1 builds, remove the swig dependency. Build-Depends: debhelper (>= 9), swig, liblua5.1-0-dev, libboost-dev, pkg-config Standards-Version: 3.9.4 diff --git a/debian/rules b/debian/rules index 3aaee3f..3f305ce 100755 --- a/debian/rules +++ b/debian/rules @@ -5,10 +5,16 @@ UPSTREAM=$(shell dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*/\1/p') ORIG=${SOURCEPKG}_${UPSTREAM}.orig.tar.bz2 %: +ifeq (,$(filter stage1,$(DEB_BUILD_PROFILES))) dh $@ +else + dh $@ -Nlibhighlight-perl +endif override_dh_auto_build: +ifeq (,$(filter stage1,$(DEB_BUILD_PROFILES))) $(MAKE) -C examples/swig perl +endif $(MAKE) -C src clean $(MAKE) LUA_LIBS=-llua5.1 -- 2.1.0.rc1
signature.asc
Description: Digital signature
