kc3-lang/automake/t/subobj-objname-clash.sh

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• Hash : f4e91bfc
  Author :
  Date : 2017-03-13T12:41:59
  

  automake: Shorter object file names under subdir-objects
  
  Combining the 'subdir-objects' option with target-specific flags had
  the consequence of producing long object file names.  This was done to
  preventively ensure the uniqueness of object file names.  We are now
  using shorter names by default, and handle long names when an actual
  conflict is detected.  This will hopefully reduce the necessity of
  using the 'prog_SHORTNAME' facility.
  
  Example:
  previously:
    AUTOMAKE_OPTIONS = subdir-objects
    bin_PROGRAMS += path/to/foo
    path_to_foo_CFLAGS = $(AM_CFLAGS) -g
  
  resulted in objects:
    sub/path_to_foo-foo.o
  
  now object file name is:
    sub/foo-foo.o
  
  * bin/automake.in (proglist, liblist, ltliblist)
  (dup_shortnames): New globals.
  (initialize_per_input): Initialize them.
  (handle_targets): New subroutine.
  (handle_single_transform): Truncate object file names when possible.
  * t/subobj-objname-clash.sh: New test.
  * t/list-of-tests.mk (handwritten_TESTS): Add it.
  * NEWS: Update.
  
  Signed-off-by: Mathieu Lirzin <mthl@gnu.org>
  

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• t/subobj-objname-clash.sh

• #! /bin/sh
  # Copyright (C) 1996-2017 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/>.
  
  # Make sure that object names don't clash when using subdir-objects.
  # The check is done for clashing programs, clashing libraries and
  # a program that clashes with a library
  
  . test-init.sh
  
  mkdir src
  
  cat >> configure.ac << 'END'
  AC_PROG_CC
  AC_PROG_RANLIB
  AC_OUTPUT
  END
  
  cat > Makefile.am << 'END'
  AUTOMAKE_OPTIONS = subdir-objects foreign
  noinst_PROGRAMS =
  noinst_LIBRARIES =
  
  # CLASHING PROGRAMS
  noinst_PROGRAMS += foo src/foo
  foo_SOURCES = src/foo.c src/main.c
  foo_CPPFLAGS = -DVAL=0
  src_foo_CPPFLAGS = -DVAL=1
  src_foo_SOURCES = src/foo.c src/main.c
  
  # CLASHING LIBS
  noinst_PROGRAMS += bar src/bar
  noinst_LIBRARIES += libbar.a src/libbar.a
  bar_SOURCES = src/main.c
  bar_LDADD = libbar.a
  src_bar_SOURCES = src/main.c
  src_bar_LDADD = src/libbar.a
  libbar_a_SOURCES = src/foo.c
  libbar_a_CPPFLAGS = -DVAL=0
  src_libbar_a_SOURCES = src/foo.c
  src_libbar_a_CPPFLAGS = -DVAL=1
  
  # CLASHING PROGRAM + LIB
  noinst_PROGRAMS += libzap_a src/zap
  noinst_LIBRARIES += src/libzap.a
  libzap_a_SOURCES = src/main.c src/foo.c
  libzap_a_CPPFLAGS = -DVAL=2
  src_zap_SOURCES = src/main.c
  src_zap_LDADD = src/libzap.a
  src_libzap_a_SOURCES = src/foo.c
  src_libzap_a_CPPFLAGS = -DVAL=3
  
  # NON-CLASHING
  noinst_PROGRAMS += src/foo-uniq
  src_foo_uniq_SOURCES = src/main.c src/foo.c
  src_foo_uniq_CPPFLAGS = -DVAL=4
  END
  
  cat > src/foo.c << 'END'
  int
  foo ()
  {
    return VAL;
  }
  END
  
  cat > src/main.c << 'END'
  int foo (void);
  
  int
  main ()
  {
    return foo ();
  }
  END
  
  $ACLOCAL
  $AUTOCONF
  $AUTOMAKE --add-missing
  
  ./configure
  $MAKE
  set +e
  ./foo || fail_ "./foo should return 0"
  ./src/foo; test $? = 1 || fail_ "./src/foo should return 1"
  ./bar || fail_ "./bar should return 0"
  ./src/bar; test $? = 1 || fail_ "./src/bar should return 1"
  ./libzap_a; test $? = 2  || fail_ "./libfoo_a should return 2"
  ./src/zap; test $? = 3 || fail_ "./src/prog_libfoo should return 3"
  ./src/foo-uniq; test $? = 4 || fail_ "./foo_uniq should return 4"
  set -e
  $MAKE clean
  

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