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Currently, the target and host flex packages do not behave the same in
terms of patching: the target variant has a patch hook that disables
building the programs (because they are not needed, and do not build
on no-MMU platforms). However, this hook is obviously not executed for
host-flex, because we really want the host flex binary to be built.
In preparation for the introduction of out-of-tree package build, it
is important that we don't do different things in the patch hooks for
the target and host variant of a given package, because the source
tree will be shared between the target and host builds.
To solve this, we introduce a --disable-program configure option,
through a patch to the flex configure.ac and Makefile.am. This patch
makes the current 0001-flex-disable-documentation.patch no longer
needed.
Furthermore, building the documentation is a PITA: flex.1 depends on
configure.ac and a few other files generated during the build. Touching
flex.1 does not work, because automake will forcibly remove the files
when its prerequisites are too old, so pre-requisites of flex.1 will
always be more recent than flex.1. So, we add a patch that adds a
--disable-doc configure option.
Fixes:
http://autobuild.buildroot.org/results/f70/f70b39632535bb9692d0a032166b2f4104532967/
http://autobuild.buildroot.org/results/525/52567afdfe7992b3518de0e01227ba14aa300f21/
[...]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[yann.morin.1998@free.fr:
- rebase on-top of master,
- add patch to not build the documentation, because simply touching
flex.1 is no longer enough.
- keep install in target/, for shared builds
]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Adrian Perez de Castro <aperez@igalia.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From ffa886a580929f26fd5e5a40c9c5334955c48553 Mon Sep 17 00:00:00 2001
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From: Explorer09 <explorer09@gmail.com>
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Date: Mon, 4 Sep 2017 10:47:33 +0800
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Subject: [PATCH] build: AC_USE_SYSTEM_EXTENSIONS in configure.ac.
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This would, e.g. define _GNU_SOURCE in config.h, enabling the
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reallocarray() prototype in glibc 2.26+ on Linux systems with that
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version of glibc.
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Fixes #241.
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Backported from: 24fd0551333e7eded87b64dd36062da3df2f6380
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Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
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---
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configure.ac | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/configure.ac b/configure.ac
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index 55e774b..c879fe1 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -25,8 +25,10 @@
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# autoconf requirements and initialization
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AC_INIT([the fast lexical analyser generator],[2.6.4],[flex-help@lists.sourceforge.net],[flex])
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+AC_PREREQ([2.60])
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AC_CONFIG_SRCDIR([src/scan.l])
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AC_CONFIG_AUX_DIR([build-aux])
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+AC_USE_SYSTEM_EXTENSIONS
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LT_INIT
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AM_INIT_AUTOMAKE([1.11.3 -Wno-portability foreign check-news std-options dist-lzip parallel-tests subdir-objects])
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AC_CONFIG_HEADER([src/config.h])
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--
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2.14.1
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