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Increment the version number of version.pm
[perl5.git] / lib / ExtUtils / CBuilder / Base.pm
CommitLineData
6b09c160
YST
1package ExtUtils::CBuilder::Base;
2
3use strict;
4use File::Spec;
5use File::Basename;
6use Config;
7use Text::ParseWords;
8
9use vars qw($VERSION);
345dbb93 10$VERSION = '0.12';
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YST
11
12sub new {
13 my $class = shift;
14 my $self = bless {@_}, $class;
15
16 $self->{properties}{perl} = $class->find_perl_interpreter
17 or warn "Warning: Can't locate your perl binary";
18
19 while (my ($k,$v) = each %Config) {
20 $self->{config}{$k} = $v unless exists $self->{config}{$k};
21 }
22 return $self;
23}
24
25sub find_perl_interpreter {
26 my $perl;
27 File::Spec->file_name_is_absolute($perl = $^X)
28 or -f ($perl = $Config::Config{perlpath})
29 or ($perl = $^X);
30 return $perl;
31}
32
33sub add_to_cleanup {
34 my $self = shift;
35 my %files = map {$_, 1} @_;
36}
37
38sub object_file {
39 my ($self, $filename) = @_;
40
41 # File name, minus the suffix
42 (my $file_base = $filename) =~ s/\.[^.]+$//;
43 return "$file_base$self->{config}{obj_ext}";
44}
45
46sub arg_include_dirs {
47 my $self = shift;
48 return map {"-I$_"} @_;
49}
50
51sub arg_nolink { '-c' }
52
53sub arg_object_file {
54 my ($self, $file) = @_;
55 return ('-o', $file);
56}
57
58sub arg_share_object_file {
59 my ($self, $file) = @_;
60 return ($self->split_like_shell($self->{config}{lddlflags}), '-o', $file);
61}
62
63sub arg_exec_file {
64 my ($self, $file) = @_;
65 return ('-o', $file);
66}
67
68sub compile {
69 my ($self, %args) = @_;
70 die "Missing 'source' argument to compile()" unless defined $args{source};
71
72 my $cf = $self->{config}; # For convenience
73
74 $args{object_file} ||= $self->object_file($args{source});
75
76 my @include_dirs = $self->arg_include_dirs
77 (@{$args{include_dirs} || []},
78 $self->perl_inc());
79
80 my @extra_compiler_flags = $self->split_like_shell($args{extra_compiler_flags});
81 my @cccdlflags = $self->split_like_shell($cf->{cccdlflags});
82 my @ccflags = $self->split_like_shell($cf->{ccflags});
83 my @optimize = $self->split_like_shell($cf->{optimize});
84 my @flags = (@include_dirs, @cccdlflags, @extra_compiler_flags,
85 $self->arg_nolink,
86 @ccflags, @optimize,
87 $self->arg_object_file($args{object_file}),
88 );
89
90 my @cc = $self->split_like_shell($cf->{cc});
91
92 $self->do_system(@cc, @flags, $args{source})
93 or die "error building $args{object_file} from '$args{source}'";
94
95 return $args{object_file};
96}
97
98sub have_compiler {
99 my ($self) = @_;
100 return $self->{have_compiler} if defined $self->{have_compiler};
101
102 my $tmpfile = File::Spec->catfile(File::Spec->tmpdir, 'compilet.c');
103 {
104 local *FH;
105 open FH, "> $tmpfile" or die "Can't create $tmpfile: $!";
106 print FH "int boot_compilet() { return 1; }\n";
107 close FH;
108 }
109
110 my ($obj_file, @lib_files);
111 eval {
112 $obj_file = $self->compile(source => $tmpfile);
113 @lib_files = $self->link(objects => $obj_file, module_name => 'compilet');
114 };
115 warn $@ if $@;
116 my $result = $self->{have_compiler} = $@ ? 0 : 1;
117
118 foreach (grep defined, $tmpfile, $obj_file, @lib_files) {
119 1 while unlink;
120 }
121 return $result;
122}
123
124sub lib_file {
125 my ($self, $dl_file) = @_;
126 $dl_file =~ s/\.[^.]+$//;
127 $dl_file =~ tr/"//d;
128 return "$dl_file.$self->{config}{dlext}";
129}
130
131
132sub exe_file {
133 my ($self, $dl_file) = @_;
134 $dl_file =~ s/\.[^.]+$//;
135 $dl_file =~ tr/"//d;
136 return "$dl_file$self->{config}{_exe}";
137}
138
139sub need_prelink { 0 }
140
141sub prelink {
142 my ($self, %args) = @_;
143
144 ($args{dl_file} = $args{dl_name}) =~ s/.*::// unless $args{dl_file};
145
146 require ExtUtils::Mksymlists;
147 ExtUtils::Mksymlists::Mksymlists( # dl. abbrev for dynamic library
148 DL_VARS => $args{dl_vars} || [],
149 DL_FUNCS => $args{dl_funcs} || {},
150 FUNCLIST => $args{dl_func_list} || [],
151 IMPORTS => $args{dl_imports} || {},
152 NAME => $args{dl_name},
153 DLBASE => $args{dl_base},
154 FILE => $args{dl_file},
155 );
156
157 # Mksymlists will create one of these files
158 return grep -e, map "$args{dl_file}.$_", qw(ext def opt);
159}
160
161sub link {
162 my ($self, %args) = @_;
163 return $self->_do_link('lib_file', lddl => 1, %args);
164}
165
166sub link_executable {
167 my ($self, %args) = @_;
168 return $self->_do_link('exe_file', lddl => 0, %args);
169}
170
171sub _do_link {
172 my ($self, $type, %args) = @_;
173
174 my $cf = $self->{config}; # For convenience
175
176 my $objects = delete $args{objects};
177 $objects = [$objects] unless ref $objects;
178 my $out = $args{$type} || $self->$type($objects->[0]);
179
180 my @temp_files;
181 @temp_files =
182 $self->prelink(%args,
345dbb93 183 dl_name => $args{module_name}) if $args{lddl} && $self->need_prelink;
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184
185 my @linker_flags = $self->split_like_shell($args{extra_linker_flags});
186 my @output = $args{lddl} ? $self->arg_share_object_file($out) : $self->arg_exec_file($out);
187 my @shrp = $self->split_like_shell($cf->{shrpenv});
188 my @ld = $self->split_like_shell($cf->{ld});
189 $self->do_system(@shrp, @ld, @output, @$objects, @linker_flags)
190 or die "error building $out from @$objects";
191
192 return wantarray ? ($out, @temp_files) : $out;
193}
194
195
196sub do_system {
197 my ($self, @cmd) = @_;
198 print "@cmd\n" if !$self->{quiet};
199 return !system(@cmd);
200}
201
202sub split_like_shell {
203 my ($self, $string) = @_;
204
205 return () unless defined($string);
206 return @$string if UNIVERSAL::isa($string, 'ARRAY');
207 $string =~ s/^\s+|\s+$//g;
208 return () unless length($string);
209
210 return Text::ParseWords::shellwords($string);
211}
212
213# if building perl, perl's main source directory
214sub perl_src {
215 # N.B. makemaker actually searches regardless of PERL_CORE, but
216 # only squawks at not finding it if PERL_CORE is set
217
345dbb93
RGS
218 return unless $ENV{PERL_CORE};
219
220 my $Updir = File::Spec->updir;
221 my $dir = $Updir;
222
223 # Try up to 5 levels upwards
224 for (1..5) {
225 if (
226 -f File::Spec->catfile($dir,"config_h.SH")
227 &&
228 -f File::Spec->catfile($dir,"perl.h")
229 &&
230 -f File::Spec->catfile($dir,"lib","Exporter.pm")
231 ) {
232 return $dir;
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233 }
234
345dbb93 235 $dir = File::Spec->catdir($dir, $Updir);
6b09c160 236 }
345dbb93
RGS
237
238 warn "PERL_CORE is set but I can't find your perl source!\n";
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239 return;
240}
241
242# directory of perl's include files
243sub perl_inc {
244 my $self = shift;
245
246 $self->perl_src() || File::Spec->catdir($self->{config}{archlibexp},"CORE");
247}
248
2491;