kc3-lang/automake/t/lisp8.sh

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• Hash : d19eb85c
  Author :
  Date : 2013-05-24T01:13:40
  

  tests: use append mode to capture parallel make output
  
  This will allow us to run the Automake testsuite forcing all the make
  invocations in the test cases to run in parallel mode [1], but without
  hitting the spurious failure reported in automake bug#11413.
  
  See also:
  <http://lists.gnu.org/archive/html/bug-make/2013-05/msg00135.html>
  
  The make invocations in the test cases can be forced to run in parallel
  mode by, e.g., invoking "make check" like this:
  
        make check AM_TESTSUITE_MAKE="make -j16"
  
  The possible spurious failures hinted above are due to the fact that
  the redirected output of parallel make can racily lose lines.  For
  example, if GNU make (3.82) is run with -j10 on a Makefile like this:
  
      all = 0 1 2 3 4 5 6 7 8 9
      default: $(all)
      $(all):
              @sleep 0.$$(($RANDOM % 10)); echo $@
  
  and has its standard output redirected in overwrite-mode to a regular
  file, it looses a line of that output every 15 runs or so on a Fedora
  17 system with 64 ppc64 cores.  Redirection in append mode does not
  suffer of this problem, as explained here:
  <http://lists.gnu.org/archive/html/automake-patches/2009-03/msg00073.html>
  
  See also previous commits v1.12-63-g45c1fcd of 2012-05-05 (tests: use
  append mode to capture parallel make output) and Release-1-10-280-g6426999
  of 2009-03-10 (Use append mode to capture parallel test output).
  
  * t/ax/am-test-lib.sh (run_make): Adjust and enhance.
  * t/lisp8.sh: Take advantage of the enhancement, nd stop doing output
  redirection for $MAKE by hand.
  * t/tap-more.sh: Likewise.
  * t/parallel-tests-concurrency.sh: Likewise.
  
  Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
  

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• t/lisp8.sh

• #! /bin/sh
  # Copyright (C) 2005-2013 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 the recover rule of lisp_LISP with parallel make.
  
  required='GNUmake emacs'
  . test-init.sh
  
  cat > Makefile.am << 'EOF'
  dist_lisp_LISP = am-one.el am-two.el am-three.el
  EOF
  
  cat >> configure.ac << 'EOF'
  AM_PATH_LISPDIR
  AC_OUTPUT
  EOF
  
  echo "(require 'am-two)" > am-one.el
  echo "(require 'am-three) (provide 'am-two)" > am-two.el
  echo "(provide 'am-three)" > am-three.el
  
  $ACLOCAL
  $AUTOCONF
  $AUTOMAKE --add-missing
  ./configure
  
  run_make -O -- -j
  
  test -f am-one.elc
  test -f am-two.elc
  test -f am-three.elc
  
  # Delete ...
  rm -f am-*.elc
  
  # ... and recover.
  run_make -O -- -j
  test -f am-one.elc
  test -f am-two.elc
  test -f am-three.elc
  
  :
  

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