kc3-lang/automake/tests/extra-portability.test

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• Hash : 3a814608
  Author :
  Date : 2012-03-07T21:08:06
  

  Merge branch 'msvc' into maint
  
  This merge remedies the confusing situation that some changes
  destined for both the master branch and the release branch (a.k.a.
  branch-1.11) currently needs to be made on the non-obvious msvc
  branch and not on the more natural maint branch.  This has caused
  a seemingly endless string of less than optimal commits.
  
  The reason for the confusion stems from the fact that the changes made
  on the msvc branch became too radical and was considered only suitable
  for the master branch, and was thus written in a form suitable for
  master and then merged there.  Later, the msvc branch was merged
  directly into branch-1.11, in order to rush the new features to the
  market and to keep the released scripts (lib/ar-lib, lib/compile and
  lib/depcomp) consistent with those on the master branch.  However,
  some changes had to be made to the features added by the msvc branch
  in order for them to fit the requirements of branch-1.11, notably that
  the warnings issued in the extra-portability class cannot be enabled
  by -Wall in the 1.11.x maintenance releases.
  
  In retrospect, it would have been better to not merge msvc directly
  into branch-1.11, but instead do it via the maint branch (followed up
  with a dummy merge from maint into master) the moment it was decided
  that the msvc changes should make it into branch-1.11.
  
  All in all, this merge is going to affect neither the master branch
  nor branch-1.11, since it is followed up with dummy merges masking all
  changes.  The merge is made to maintain the sanity of the poor
  developers, who wishes to once again have a working maint branch.
  
  Discussion about merging the msvc branch into branch-1.11:
  http://lists.gnu.org/archive/html/automake/2011-10/msg00030.html
  
  Discussion about why this merge hasn't happened before:
  http://lists.gnu.org/archive/html/automake/2011-12/msg00051.html
  
  Extra edits below.
  
  * lib/Automake/ChannelDefs.pm: Use the version from branch-1.11.
  * tests/ar-lib3.test: Likewise.
  * tests/ar-lib4.test: Likewise.
  * tests/extra-portability.test: Likewise.
  * tests/extra-portability2.test: Likewise.
  * tests/extradep.test: Likewise.
  * tests/extradep2.test: Likewise.
  * tests/list-of-tests.mk: Likewise.
  * HACKING: Backport the version from branch-1.11 while at it (as the
  change on branch-1.11 is also present on master via an unrelated
  commit), even though this change has nothing to do with the changes
  on the msvc branch.
  

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• tests/extra-portability.test

• #! /bin/sh
  # Copyright (C) 2011-2012 Free Software Foundation, Inc.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation; either version 2, or (at your option)
  # any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  # Check interactions between the 'portability' and 'extra-portability'
  # warning categories:
  #   1. '-Wextra-portability' must imply '-Wportability'.
  #   2. '-Wno-portability' must imply '-Wno-extra-portability'.
  #   3. '-Wall' must imply '-Wextra-portability'.
  
  . ./defs || Exit 1
  
  # We want (almost) complete control over automake options.
  AUTOMAKE="$am_original_AUTOMAKE --foreign -Werror"
  
  cat >>configure.ac <<END
  AC_PROG_CC
  AC_PROG_RANLIB
  AC_OUTPUT
  END
  
  $ACLOCAL
  
  #
  # First, a setup where only an extra-portability warning is present
  # (no "simple" portability-warnings are).
  #
  
  cat >Makefile.am <<END
  EXTRA_LIBRARIES = libfoo.a
  libfoo_a_SOURCES = sub/foo.c
  END
  
  # Sanity check: extra-portability warnings causes the expected error.
  AUTOMAKE_fails -Wextra-portability
  grep 'requires.*AM_PROG_AR' stderr
  
  # Warnings in extra-portability category are not enabled by default.
  $AUTOMAKE
  
  # -Wall enables extra-portability.
  AUTOMAKE_fails -Wall
  grep 'requires.*AM_PROG_AR' stderr
  
  # Disabling portability disables extra-portability as well.
  $AUTOMAKE -Wextra-portability -Wno-portability
  $AUTOMAKE -Wall -Wno-portability
  
  #
  # Now, a setup where also a "simple" portability warning is present.
  #
  
  # Per-target flags require the use of AM_PROG_CC_C_O in configure.ac.
  echo libfoo_a_CPPFLAGS = -Dwhatever >> Makefile.am
  
  # Enabling extra-portability enables portability as well ...
  AUTOMAKE_fails -Wextra-portability
  grep 'requires.*AM_PROG_CC_C_O' stderr
  grep 'requires.*AM_PROG_AR' stderr
  # ... even if it had been previously disabled.
  AUTOMAKE_fails -Wno-portability -Wextra-portability
  grep 'requires.*AM_PROG_CC_C_O' stderr
  grep 'requires.*AM_PROG_AR' stderr
  
  # Disabling extra-portability leaves portability intact (1).
  AUTOMAKE_fails -Wportability -Wno-extra-portability
  grep 'requires.*AM_PROG_CC_C_O' stderr
  grep 'requires.*AM_PROG_AR' stderr && Exit 1
  # Disabling extra-portability leaves portability intact (2).
  AUTOMAKE_fails -Wall -Wno-extra-portability
  grep 'requires.*AM_PROG_CC_C_O' stderr
  grep 'requires.*AM_PROG_AR' stderr && Exit 1
  
  # Enabling portability does not enable extra-portability.
  AUTOMAKE_fails -Wportability
  grep 'requires.*AM_PROG_CC_C_O' stderr
  grep 'requires.*AM_PROG_AR' stderr && Exit 1
  
  # Disabling portability disables extra-portability.
  $AUTOMAKE -Wno-portability
  $AUTOMAKE -Wextra-portability -Wno-portability
  $AUTOMAKE -Wall -Wno-portability
  
  :
  

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