kc3-lang/gnulib/m4/perl.m4

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• Hash : 6b9d15b8
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  Date : 2020-01-11T18:59:42
  

  perl: require the "warnings" module
  
  * m4/perl.m4: Also "use warnings", so we reject the perl found
  on at least one IRIX 6.5 system. Reported by Bruno Haible in
  https://lists.gnu.org/r/sed-devel/2020-01/msg00004.html
  

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• m4/perl.m4

• # serial 10
  
  dnl From Jim Meyering.
  dnl Find a new-enough version of Perl.
  
  # Copyright (C) 1998-2001, 2003-2004, 2007, 2009-2020 Free Software Foundation,
  # Inc.
  #
  # This file is free software; the Free Software Foundation
  # gives unlimited permission to copy and/or distribute it,
  # with or without modifications, as long as this notice is preserved.
  
  AC_DEFUN([gl_PERL],
  [
    dnl FIXME: don't hard-code 5.005
    AC_MSG_CHECKING([for perl5.005 or newer])
    if test "${PERL+set}" = set; then
      # 'PERL' is set in the user's environment.
      candidate_perl_names="$PERL"
      perl_specified=yes
    else
      candidate_perl_names='perl perl5'
      perl_specified=no
    fi
  
    found=no
    AC_SUBST([PERL])
    PERL="$am_missing_run perl"
    for perl in $candidate_perl_names; do
      # Run test in a subshell; some versions of sh will print an error if
      # an executable is not found, even if stderr is redirected.
      if ( $perl -e 'require 5.005; use File::Compare; use warnings;' ) > /dev/null 2>&1; then
        PERL=$perl
        found=yes
        break
      fi
    done
  
    AC_MSG_RESULT([$found])
    test $found = no && AC_MSG_WARN([
  WARNING: You don't seem to have perl5.005 or newer installed, or you lack
           a usable version of the Perl File::Compare module.  As a result,
           you may be unable to run a few tests or to regenerate certain
           files if you modify the sources from which they are derived.
  ] )
  ])
  

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