Commit | Line | Data |
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6b09c160 YST |
1 | package ExtUtils::CBuilder::Base; |
2 | ||
3 | use strict; | |
4 | use File::Spec; | |
5 | use File::Basename; | |
6 | use Config; | |
7 | use Text::ParseWords; | |
8 | ||
9 | use vars qw($VERSION); | |
10 | $VERSION = '0.00_02'; | |
11 | $VERSION = eval $VERSION; | |
12 | ||
13 | sub new { | |
14 | my $class = shift; | |
15 | my $self = bless {@_}, $class; | |
16 | ||
17 | $self->{properties}{perl} = $class->find_perl_interpreter | |
18 | or warn "Warning: Can't locate your perl binary"; | |
19 | ||
20 | while (my ($k,$v) = each %Config) { | |
21 | $self->{config}{$k} = $v unless exists $self->{config}{$k}; | |
22 | } | |
23 | return $self; | |
24 | } | |
25 | ||
26 | sub find_perl_interpreter { | |
27 | my $perl; | |
28 | File::Spec->file_name_is_absolute($perl = $^X) | |
29 | or -f ($perl = $Config::Config{perlpath}) | |
30 | or ($perl = $^X); | |
31 | return $perl; | |
32 | } | |
33 | ||
34 | sub add_to_cleanup { | |
35 | my $self = shift; | |
36 | my %files = map {$_, 1} @_; | |
37 | } | |
38 | ||
39 | sub object_file { | |
40 | my ($self, $filename) = @_; | |
41 | ||
42 | # File name, minus the suffix | |
43 | (my $file_base = $filename) =~ s/\.[^.]+$//; | |
44 | return "$file_base$self->{config}{obj_ext}"; | |
45 | } | |
46 | ||
47 | sub arg_include_dirs { | |
48 | my $self = shift; | |
49 | return map {"-I$_"} @_; | |
50 | } | |
51 | ||
52 | sub arg_nolink { '-c' } | |
53 | ||
54 | sub arg_object_file { | |
55 | my ($self, $file) = @_; | |
56 | return ('-o', $file); | |
57 | } | |
58 | ||
59 | sub arg_share_object_file { | |
60 | my ($self, $file) = @_; | |
61 | return ($self->split_like_shell($self->{config}{lddlflags}), '-o', $file); | |
62 | } | |
63 | ||
64 | sub arg_exec_file { | |
65 | my ($self, $file) = @_; | |
66 | return ('-o', $file); | |
67 | } | |
68 | ||
69 | sub compile { | |
70 | my ($self, %args) = @_; | |
71 | die "Missing 'source' argument to compile()" unless defined $args{source}; | |
72 | ||
73 | my $cf = $self->{config}; # For convenience | |
74 | ||
75 | $args{object_file} ||= $self->object_file($args{source}); | |
76 | ||
77 | my @include_dirs = $self->arg_include_dirs | |
78 | (@{$args{include_dirs} || []}, | |
79 | $self->perl_inc()); | |
80 | ||
81 | my @extra_compiler_flags = $self->split_like_shell($args{extra_compiler_flags}); | |
82 | my @cccdlflags = $self->split_like_shell($cf->{cccdlflags}); | |
83 | my @ccflags = $self->split_like_shell($cf->{ccflags}); | |
84 | my @optimize = $self->split_like_shell($cf->{optimize}); | |
85 | my @flags = (@include_dirs, @cccdlflags, @extra_compiler_flags, | |
86 | $self->arg_nolink, | |
87 | @ccflags, @optimize, | |
88 | $self->arg_object_file($args{object_file}), | |
89 | ); | |
90 | ||
91 | my @cc = $self->split_like_shell($cf->{cc}); | |
92 | ||
93 | $self->do_system(@cc, @flags, $args{source}) | |
94 | or die "error building $args{object_file} from '$args{source}'"; | |
95 | ||
96 | return $args{object_file}; | |
97 | } | |
98 | ||
99 | sub have_compiler { | |
100 | my ($self) = @_; | |
101 | return $self->{have_compiler} if defined $self->{have_compiler}; | |
102 | ||
103 | my $tmpfile = File::Spec->catfile(File::Spec->tmpdir, 'compilet.c'); | |
104 | { | |
105 | local *FH; | |
106 | open FH, "> $tmpfile" or die "Can't create $tmpfile: $!"; | |
107 | print FH "int boot_compilet() { return 1; }\n"; | |
108 | close FH; | |
109 | } | |
110 | ||
111 | my ($obj_file, @lib_files); | |
112 | eval { | |
113 | $obj_file = $self->compile(source => $tmpfile); | |
114 | @lib_files = $self->link(objects => $obj_file, module_name => 'compilet'); | |
115 | }; | |
116 | warn $@ if $@; | |
117 | my $result = $self->{have_compiler} = $@ ? 0 : 1; | |
118 | ||
119 | foreach (grep defined, $tmpfile, $obj_file, @lib_files) { | |
120 | 1 while unlink; | |
121 | } | |
122 | return $result; | |
123 | } | |
124 | ||
125 | sub lib_file { | |
126 | my ($self, $dl_file) = @_; | |
127 | $dl_file =~ s/\.[^.]+$//; | |
128 | $dl_file =~ tr/"//d; | |
129 | return "$dl_file.$self->{config}{dlext}"; | |
130 | } | |
131 | ||
132 | ||
133 | sub exe_file { | |
134 | my ($self, $dl_file) = @_; | |
135 | $dl_file =~ s/\.[^.]+$//; | |
136 | $dl_file =~ tr/"//d; | |
137 | return "$dl_file$self->{config}{_exe}"; | |
138 | } | |
139 | ||
140 | sub need_prelink { 0 } | |
141 | ||
142 | sub prelink { | |
143 | my ($self, %args) = @_; | |
144 | ||
145 | ($args{dl_file} = $args{dl_name}) =~ s/.*::// unless $args{dl_file}; | |
146 | ||
147 | require ExtUtils::Mksymlists; | |
148 | ExtUtils::Mksymlists::Mksymlists( # dl. abbrev for dynamic library | |
149 | DL_VARS => $args{dl_vars} || [], | |
150 | DL_FUNCS => $args{dl_funcs} || {}, | |
151 | FUNCLIST => $args{dl_func_list} || [], | |
152 | IMPORTS => $args{dl_imports} || {}, | |
153 | NAME => $args{dl_name}, | |
154 | DLBASE => $args{dl_base}, | |
155 | FILE => $args{dl_file}, | |
156 | ); | |
157 | ||
158 | # Mksymlists will create one of these files | |
159 | return grep -e, map "$args{dl_file}.$_", qw(ext def opt); | |
160 | } | |
161 | ||
162 | sub link { | |
163 | my ($self, %args) = @_; | |
164 | return $self->_do_link('lib_file', lddl => 1, %args); | |
165 | } | |
166 | ||
167 | sub link_executable { | |
168 | my ($self, %args) = @_; | |
169 | return $self->_do_link('exe_file', lddl => 0, %args); | |
170 | } | |
171 | ||
172 | sub _do_link { | |
173 | my ($self, $type, %args) = @_; | |
174 | ||
175 | my $cf = $self->{config}; # For convenience | |
176 | ||
177 | my $objects = delete $args{objects}; | |
178 | $objects = [$objects] unless ref $objects; | |
179 | my $out = $args{$type} || $self->$type($objects->[0]); | |
180 | ||
181 | my @temp_files; | |
182 | @temp_files = | |
183 | $self->prelink(%args, | |
184 | dl_name => $args{module_name}) if $self->need_prelink; | |
185 | ||
186 | my @linker_flags = $self->split_like_shell($args{extra_linker_flags}); | |
187 | my @output = $args{lddl} ? $self->arg_share_object_file($out) : $self->arg_exec_file($out); | |
188 | my @shrp = $self->split_like_shell($cf->{shrpenv}); | |
189 | my @ld = $self->split_like_shell($cf->{ld}); | |
190 | $self->do_system(@shrp, @ld, @output, @$objects, @linker_flags) | |
191 | or die "error building $out from @$objects"; | |
192 | ||
193 | return wantarray ? ($out, @temp_files) : $out; | |
194 | } | |
195 | ||
196 | ||
197 | sub do_system { | |
198 | my ($self, @cmd) = @_; | |
199 | print "@cmd\n" if !$self->{quiet}; | |
200 | return !system(@cmd); | |
201 | } | |
202 | ||
203 | sub split_like_shell { | |
204 | my ($self, $string) = @_; | |
205 | ||
206 | return () unless defined($string); | |
207 | return @$string if UNIVERSAL::isa($string, 'ARRAY'); | |
208 | $string =~ s/^\s+|\s+$//g; | |
209 | return () unless length($string); | |
210 | ||
211 | return Text::ParseWords::shellwords($string); | |
212 | } | |
213 | ||
214 | # if building perl, perl's main source directory | |
215 | sub perl_src { | |
216 | # N.B. makemaker actually searches regardless of PERL_CORE, but | |
217 | # only squawks at not finding it if PERL_CORE is set | |
218 | ||
219 | if ($ENV{PERL_CORE}) { | |
220 | my $Updir = File::Spec->updir; | |
221 | my($dir); | |
222 | foreach $dir ($Updir, | |
223 | File::Spec->catdir($Updir,$Updir), | |
224 | File::Spec->catdir($Updir,$Updir,$Updir), | |
225 | File::Spec->catdir($Updir,$Updir,$Updir,$Updir), | |
226 | File::Spec->catdir($Updir,$Updir,$Updir,$Updir,$Updir)) | |
227 | { | |
228 | if ( | |
229 | -f File::Spec->catfile($dir,"config_h.SH") | |
230 | && | |
231 | -f File::Spec->catfile($dir,"perl.h") | |
232 | && | |
233 | -f File::Spec->catfile($dir,"lib","Exporter.pm") | |
234 | ) { | |
235 | return $dir; | |
236 | } | |
237 | } | |
238 | ||
239 | warn "PERL_CORE is set but I can't find your perl source!\n"; | |
240 | } | |
241 | ||
242 | return; | |
243 | } | |
244 | ||
245 | # directory of perl's include files | |
246 | sub perl_inc { | |
247 | my $self = shift; | |
248 | ||
249 | $self->perl_src() || File::Spec->catdir($self->{config}{archlibexp},"CORE"); | |
250 | } | |
251 | ||
252 | 1; |