fix .gitignore: only ignore 'perl' in root of repo, not U/perl subdir

[metaconfig.git] / U / perl / usebacktrace.U

?RCS: $Id: usecbacktrace.U,v $
?RCS:
?RCS: Copyright (c) 2014 H.Merijn Brand
?RCS:
?RCS: You may distribute under the terms of either the GNU General Public
?RCS: License or the Artistic License, as specified in the README file.
?RCS:
?RCS: $Log: usecbacktrace.U,v $
?RCS:
?MAKE:usecbacktrace: Myread Oldconfig Setvar Getfile d_backtrace
?MAKE:	-pick add $@ %<
?Y:TOP
?S:usecbacktrace:
?S:	This variable indicates whether we are compiling with backtrace
?S:	support.
?S:.
?C:USE_CBACKTRACE:
?C:	This symbol, if defined, indicates that Perl should
?C:	be built with support for backtrace.
?C:.
?H:#$usecbacktrace USE_CBACKTRACE		/**/
?H:.
?LINT:extern ccflags
?LINT:change ccflags
: add flags if using c backtrace
case "$usecbacktrace" in
  "") usecbacktrace=$undef ;;
  [yY]*|true|$define)
    case "$d_backtrace" in
      [yY]*|true|$define)
        case " $ccflags " in
	  *" -DUSE_C_BACKTRACE "*) ;; # Already there.
	  *) ccflags="$ccflags -DUSE_C_BACKTRACE -g" ;;
	  esac
        ;;
      *)
        echo "This system does not support backtrace" >&4
        usecbacktrace=$undef
        ;;
      esac
    ;;
  esac