Your message dated Wed, 17 Feb 2016 06:19:17 +0000
with message-id <[email protected]>
and subject line Bug#762180: fixed in flex 2.6.0-8
has caused the Debian Bug report #762180,
regarding FTCBFS: runs host arch binaries during build via help2man
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
762180: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762180
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: src:flex
Version: 2.5.39-8
Tags: patch
User: [email protected]
Usertags: rebootstrap
flex FTCBFS for any architecture, because the manual page generation
fails. help2man fails to execute ../flex, because in general host arch
executables cannot be run on during cross-build.
It is not obvious what the best solution to this problem is. I am
listing those, that I am aware of and attach a patch for one solution.
1. When cross building, run help2man on the system copy of flex. This
requires that flex is build natively before it can be cross built.
The attached patch implements this method. One bit is missing in the
patch: flex needs to gain a new Build-Depends on flex, but only when
cross building. This can be done using build profiles[1], but build
profile enabled packages cannot be uploaded to the archive. The
dependency that flex needs to gain, probably looks like:
Build-Depends: flex <profile.cross>
This still does not enforce that the flex package used to fulfil the
dependency has the same version as the flex package that is being
built, so the manual page can be outdated. An attempt to support
versioned Build-Depends was not met with enthusiasm by the dpkg
maintainer (#751437).
Nevertheless, this method makes flex somewhat cross-buildable today!
2. Add a nodoc build profile to flex that prevents documentation from
being built or installed. This approach cannot produce subtly wrong
packages (documentation for different version), but it also requires
build profiles and requires a larger diff to be carried. Multiple
places, both in the upstream build and the debian packaging, need to
learn that the documentation can go missing.
3. Do not rebuild manual pages during cross-build but take the pre-built
copy from the source tarball. Not building from source sounds like a
bad idea to me.
If you prefer a method other than 1., please tell me so I can write a
new patch.
Helmut
[1] https://wiki.debian.org/BuildProfileSpec
diff -Nru flex-2.5.39/debian/changelog flex-2.5.39/debian/changelog
--- flex-2.5.39/debian/changelog 2014-06-21 06:01:27.000000000 +0200
+++ flex-2.5.39/debian/changelog 2014-09-18 23:24:27.000000000 +0200
@@ -1,3 +1,10 @@
+flex (2.5.39-8.1) UNRELEASED; urgency=low
+
+ * Non-maintainer upload.
+ * Do not run host arch binaries during cross build. (Closes: #-1)
+
+ -- Helmut Grohne <[email protected]> Thu, 18 Sep 2014 23:08:01 +0200
+
flex (2.5.39-8) unstable; urgency=low
* Added a missing build depends on vm-super-minimal, reuired fro
diff -Nru flex-2.5.39/debian/patches/help2man-cross.patch
flex-2.5.39/debian/patches/help2man-cross.patch
--- flex-2.5.39/debian/patches/help2man-cross.patch 1970-01-01
01:00:00.000000000 +0100
+++ flex-2.5.39/debian/patches/help2man-cross.patch 2014-09-18
23:24:49.000000000 +0200
@@ -0,0 +1,32 @@
+From: Helmut Grohne <[email protected]>
+Subject: Run help2man on the system copy of flex when cross building
+Last-Modified: 2014-09-18
+
+Index: flex-2.5.39/configure.ac
+===================================================================
+--- flex-2.5.39.orig/configure.ac 2014-03-26 19:55:03.000000000 +0100
++++ flex-2.5.39/configure.ac 2014-09-18 23:06:59.199483266 +0200
+@@ -50,6 +50,12 @@
+
+ AC_PATH_PROG(BISON, bison,bison)
+ AC_PATH_PROG(HELP2MAN, help2man, help2man)
++if test "$cross_compiling" = yes; then
++FLEXexe='flex$(EXEEXT)'
++else
++FLEXexe='$(top_builddir)/flex$(EXEEXT)'
++fi
++AC_SUBST(FLEXexe)
+
+ # Check for a m4 that supports -P
+
+Index: flex-2.5.39/doc/Makefile.am
+===================================================================
+--- flex-2.5.39.orig/doc/Makefile.am 2014-03-26 13:46:44.000000000 +0100
++++ flex-2.5.39/doc/Makefile.am 2014-09-18 23:07:11.335481934 +0200
+@@ -27,5 +27,5 @@
+ for i in $(dist_man_MANS) ; do \
+ $(help2man) --name='$(PACKAGE_NAME)' \
+ --section=`echo $$i | sed -e 's/.*\.\([^.]*\)$$/\1/'` \
+- ../flex$(EXEEXT) > $$i || rm -f $$i ; \
++ $(FLEXexe) > $$i || rm -f $$i ; \
+ done
diff -Nru flex-2.5.39/debian/patches/series flex-2.5.39/debian/patches/series
--- flex-2.5.39/debian/patches/series 2014-06-21 06:01:27.000000000 +0200
+++ flex-2.5.39/debian/patches/series 2014-09-18 23:06:50.000000000 +0200
@@ -4,3 +4,4 @@
0003-ia64-buffer-fix-Some-more-fixes-for-the-ia64-buffer-.patch
0004-bison-test-fixes-Do-not-use-obsolete-bison-construct.patch
0005-fix-off-by-one-error-generatred-line-numbers-are-off.patch
+help2man-cross.patch
--- End Message ---
--- Begin Message ---
Source: flex
Source-Version: 2.6.0-8
We believe that the bug you reported is fixed in the latest version of
flex, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Manoj Srivastava <[email protected]> (supplier of updated flex package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Tue, 16 Feb 2016 21:55:51 -0800
Source: flex
Binary: flex flex-doc libfl-dev
Architecture: source amd64 all
Version: 2.6.0-8
Distribution: unstable
Urgency: low
Maintainer: Manoj Srivastava <[email protected]>
Changed-By: Manoj Srivastava <[email protected]>
Description:
flex - fast lexical analyzer generator
flex-doc - Documentation for flex (a fast lexical analyzer generator)
libfl-dev - static library for flex (a fast lexical analyzer generator)
Closes: 762180 812659
Changes:
flex (2.6.0-8) unstable; urgency=low
.
* Bug fix: "flex FTCBFS: runs tests even when DEB_BUILD_OPTIONS contains
nocheck", thanks to Helmut Grohne. Added an AM_CONDITIONAL that tests
DEB_BUILD_OPTIONS in configure.ac, and use that in
tests/Makefile.am. Seems to work fine. (Closes: #812659).
* Bug fix: "runs host arch binaries during build via help2man", thanks
to Helmut Grohne. The change from the previous patch is that the flex
binary now is created in ./src/ (Closes: #762180).
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