晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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package ExtUtils::CBuilder::Platform::Windows::GCC;
our $VERSION = '0.280230'; # VERSION
use warnings;
use strict;
sub format_compiler_cmd {
my ($self, %spec) = @_;
foreach my $path ( @{ $spec{includes} || [] },
@{ $spec{perlinc} || [] } ) {
$path = '-I' . $path;
}
# split off any -arguments included in cc
my @cc = split / (?=-)/, $spec{cc};
return [ grep {defined && length} (
@cc, '-c' ,
@{$spec{includes}} ,
@{$spec{cflags}} ,
@{$spec{optimize}} ,
@{$spec{defines}} ,
@{$spec{perlinc}} ,
'-o', $spec{output} ,
$spec{source} ,
) ];
}
sub format_linker_cmd {
my ($self, %spec) = @_;
my $cf = $self->{config};
# The Config.pm variable 'libperl' is hardcoded to the full name
# of the perl import library (i.e. 'libperl56.a'). GCC will not
# find it unless the 'lib' prefix & the extension are stripped.
$spec{libperl} =~ s/^(?:lib)?([^.]+).*$/-l$1/;
unshift( @{$spec{other_ldflags}}, '-nostartfiles' )
if ( $spec{startup} && @{$spec{startup}} );
# From ExtUtils::MM_Win32:
#
## one thing for GCC/Mingw32:
## we try to overcome non-relocateable-DLL problems by generating
## a (hopefully unique) image-base from the dll's name
## -- BKS, 10-19-1999
File::Basename::basename( $spec{output} ) =~ /(....)(.{0,4})/;
$spec{image_base} = sprintf( "0x%x0000", unpack('n', $1 ^ $2) );
%spec = $self->write_linker_script(%spec)
if $spec{use_scripts};
foreach my $path ( @{$spec{libpath}} ) {
$path = "-L$path";
}
my @cmds; # Stores the series of commands needed to build the module.
my $DLLTOOL = $cf->{dlltool} || 'dlltool';
push @cmds, [
$DLLTOOL, '--def' , $spec{def_file},
'--output-exp' , $spec{explib}
];
# split off any -arguments included in ld
my @ld = split / (?=-)/, $spec{ld};
push @cmds, [ grep {defined && length} (
@ld ,
'-o', $spec{output} ,
"-Wl,--base-file,$spec{base_file}" ,
"-Wl,--image-base,$spec{image_base}" ,
@{$spec{lddlflags}} ,
@{$spec{libpath}} ,
@{$spec{startup}} ,
@{$spec{objects}} ,
@{$spec{other_ldflags}} ,
$spec{libperl} ,
@{$spec{perllibs}} ,
$spec{explib} ,
$spec{map_file} ? ('-Map', $spec{map_file}) : ''
) ];
push @cmds, [
$DLLTOOL, '--def' , $spec{def_file},
'--output-exp' , $spec{explib},
'--base-file' , $spec{base_file}
];
push @cmds, [ grep {defined && length} (
@ld ,
'-o', $spec{output} ,
"-Wl,--image-base,$spec{image_base}" ,
@{$spec{lddlflags}} ,
@{$spec{libpath}} ,
@{$spec{startup}} ,
@{$spec{objects}} ,
@{$spec{other_ldflags}} ,
$spec{libperl} ,
@{$spec{perllibs}} ,
$spec{explib} ,
$spec{map_file} ? ('-Map', $spec{map_file}) : ''
) ];
return @cmds;
}
sub write_linker_script {
my ($self, %spec) = @_;
my $script = File::Spec->catfile( $spec{srcdir},
$spec{basename} . '.lds' );
$self->add_to_cleanup($script);
print "Generating script '$script'\n" if !$self->{quiet};
my $SCRIPT = IO::File->new( ">$script" )
or die( "Could not create script '$script': $!" );
print $SCRIPT ( 'SEARCH_DIR(' . $_ . ")\n" )
for @{delete $spec{libpath} || []};
# gcc takes only one startup file, so the first object in startup is
# specified as the startup file and any others are shifted into the
# beginning of the list of objects.
if ( $spec{startup} && @{$spec{startup}} ) {
print $SCRIPT 'STARTUP(' . shift( @{$spec{startup}} ) . ")\n";
unshift @{$spec{objects}},
@{delete $spec{startup} || []};
}
print $SCRIPT 'INPUT(' . join( ',',
@{delete $spec{objects} || []}
) . ")\n";
print $SCRIPT 'INPUT(' . join( ' ',
(delete $spec{libperl} || ''),
@{delete $spec{perllibs} || []},
) . ")\n";
#it is important to keep the order 1.linker_script - 2.other_ldflags
unshift @{$spec{other_ldflags}}, '"' . $script . '"';
return %spec;
}
1;