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1 | #!./miniperl |
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2 | use strict; |
3 | use warnings; |
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4 | |
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5 | # This script acts as a simple interface for building extensions. |
6 | # It primarily used by the perl Makefile: |
7 | # |
8 | # d_dummy $(dynamic_ext): miniperl preplibrary FORCE |
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9 | # @$(RUN) ./miniperl ext/util/make_ext.pl dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL) |
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10 | # |
11 | # It may be deleted in a later release of perl so try to |
12 | # avoid using it for other purposes. |
13 | |
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14 | my (%excl, %incl, %opts, @argv); |
15 | |
16 | foreach (@ARGV) { |
17 | if (/^!(.*)$/) { |
18 | $excl{$1} = 1; |
19 | } elsif (/^\+(.*)$/) { |
20 | $incl{$1} = 1; |
21 | } elsif (/^--([\w\-]+)$/) { |
22 | $opts{$1} = 1; |
23 | } else { |
24 | push @argv, $_; |
25 | } |
26 | } |
27 | |
28 | my $target = shift @argv; |
29 | my $extspec = shift @argv; |
30 | my $makecmd = shift @argv; # Should be something like MAKE=make |
31 | my $passthru = join ' ', @argv; # allow extra macro=value to be passed through |
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32 | print "\n"; |
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33 | |
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34 | # Previously, $make was taken from config.sh. However, the user might |
35 | # instead be running a possibly incompatible make. This might happen if |
36 | # the user types "gmake" instead of a plain "make", for example. The |
37 | # correct current value of MAKE will come through from the main perl |
38 | # makefile as MAKE=/whatever/make in $makecmd. We'll be cautious in |
39 | # case third party users of this script (are there any?) don't have the |
40 | # MAKE=$(MAKE) argument, which was added after 5.004_03. |
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41 | my $make; |
42 | if (defined($makecmd) and $makecmd =~ /^MAKE=(.*)$/) { |
43 | $make = $1; |
44 | } |
45 | else { |
46 | print "ext/util/make_ext: WARNING: Please include MAKE=\$(MAKE)\n"; |
47 | print "\tin your call to make_ext. See ext/util/make_ext for details.\n"; |
48 | exit(1); |
49 | } |
50 | |
51 | # search config.sh for inclusion |
52 | $ENV{CONFIG} = '' if not defined $ENV{CONFIG}; |
53 | if ($ENV{CONFIG} eq '') { |
54 | my $config; |
55 | foreach my $depth (0..4) { |
56 | my $file = ('../' x $depth) . 'config.sh'; |
57 | $config = $file, last if -f $file; |
58 | } |
59 | print("Can't find config.sh generated by Configure"), exit(1) |
60 | unless defined $config; |
61 | |
62 | load_config_sh($config); |
63 | } |
64 | |
65 | # fallback to config.sh's MAKE |
66 | $make ||= $ENV{make} || $ENV{MAKE}; |
67 | my $run = $ENV{run}; |
68 | $run = '' if not defined $run; |
69 | $run .= ' ' if $run ne '';; |
70 | |
71 | if (!defined($extspec) or $extspec eq '') { |
72 | print "make_ext: no extension specified\n"; |
73 | exit(1); |
74 | } |
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75 | |
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76 | # The Perl Makefile.SH will expand all extensions to |
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77 | # lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested) |
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78 | # A user wishing to run make_ext might use |
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79 | # X (or X/Y or X::Y if nested) |
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80 | |
81 | # canonise into X/Y form (pname) |
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82 | |
83 | my $pname = $extspec; |
84 | if ($extspec =~ /^lib/) { |
85 | # Remove lib/auto prefix and /*.* suffix |
86 | $pname =~ s{^lib/auto/}{}; |
87 | $pname =~ s{[^/]*\.[^/]*$}{}; |
88 | } |
89 | elsif ($extspec =~ /^ext/) { |
90 | # Remove ext/ prefix and /pm_to_blib suffix |
91 | $pname =~ s{^ext/}{}; |
92 | $pname =~ s{/pm_to_blib$}{}; |
93 | } |
94 | elsif ($extspec =~ /::/) { |
95 | # Convert :: to / |
96 | $pname =~ s{::}{\/}g; |
97 | } |
98 | elsif ($extspec =~ /\..*o$/) { |
99 | $pname =~ s/\..*o//; |
100 | } |
101 | |
102 | my $mname = $pname; |
103 | $mname =~ s!/!::!g; |
104 | my $depth = $pname; |
105 | $depth =~ s![^/]+!..!g; |
106 | my $makefile = "Makefile"; |
107 | my $makeargs = ''; |
108 | my $makeopts = ''; |
109 | |
110 | if (not -d "ext/$pname") { |
111 | print "\tSkipping $extspec (directory does not exist)\n"; |
112 | exit(0); # not an error ? |
113 | } |
114 | |
115 | if ($ENV{osname} eq 'catamount') { |
116 | # Snowball's chance of building extensions. |
117 | print "This is $ENV{osname}, not building $mname, sorry.\n"; |
118 | exit(0); |
119 | } |
120 | |
121 | print "\tMaking $mname ($target)\n"; |
122 | |
123 | chdir("ext/$pname"); |
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124 | |
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125 | # check link type and do any preliminaries. Valid link types are |
126 | # 'dynamic', 'static', and 'static_pic' (the last one respects |
127 | # CCCDLFLAGS such as -fPIC -- see static_target in the main Makefile.SH) |
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128 | if ($target eq 'dynamic') { |
129 | $makeargs = "LINKTYPE=dynamic"; |
130 | $target = 'all'; |
131 | } |
132 | elsif ($target eq 'static') { |
133 | $makeargs = "LINKTYPE=static CCCDLFLAGS="; |
134 | $target = 'all'; |
135 | } |
136 | elsif ($target eq 'static_pic') { |
137 | $makeargs = "LINKTYPE=static"; |
138 | $target = 'all'; |
139 | } |
140 | elsif ($target eq 'nonxs') { |
141 | $makeargs = ""; |
142 | $target = 'all'; |
143 | } |
144 | elsif ($target =~ /clean$/) { |
145 | # If Makefile has been moved to Makefile.old by a make clean |
146 | # then use Makefile.old for realclean rather than rebuild it |
147 | if (! -f $makefile and -f "Makefile.old") { |
148 | $makefile = "Makefile.old"; |
149 | $makeopts = "-f $makefile"; |
150 | print "Note: Using Makefile.old\n"; |
151 | } |
152 | } |
153 | elsif ($target eq '') { |
154 | print "make_ext: no make target specified (eg static or dynamic)\n"; |
155 | exit(1); |
156 | } |
157 | else { |
158 | # for the time being we are strict about what make_ext is used for |
159 | print "make_ext: unknown make target '$target'\n"; |
160 | exit(1); |
161 | } |
162 | |
163 | |
164 | if (not -f $makefile) { |
165 | if (-f "Makefile.PL") { |
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166 | my $cross = $opts{cross} ? ' -MCross' : ''; |
167 | system("${run}../$depth/miniperl -I../$depth/lib$cross Makefile.PL INSTALLDIRS=perl INSTALLMAN3DIR=none PERL_CORE=1 $passthru"); |
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168 | } |
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169 | # Right. The reason for this little hack is that we're sitting inside |
170 | # a program run by ./miniperl, but there are tasks we need to perform |
171 | # when the 'realclean', 'distclean' or 'veryclean' targets are run. |
172 | # Unfortunately, they can be run *after* 'clean', which deletes |
173 | # ./miniperl |
174 | # So we do our best to leave a set of instructions identical to what |
175 | # we would do if we are run directly as 'realclean' etc |
176 | # Whilst we're perfect, unfortunately the targets we call are not, as |
177 | # some of them rely on a $(PERL) for their own distclean targets. |
178 | # But this always used to be a problem with the old /bin/sh version of |
179 | # this. |
180 | my $suffix = '.sh'; |
181 | foreach my $clean_target ('realclean', 'veryclean') { |
182 | my $file = "../$depth/$clean_target$suffix"; |
183 | open my $fh, '>>', $file or die "open $file: $!"; |
184 | # Quite possible that we're being run in parallel here. |
185 | # Can't use Fcntl this early to get the LOCK_EX |
186 | flock $fh, 2 or warn "flock $file: $!"; |
187 | if ($^O eq 'VMS') { |
188 | # Write out DCL here |
189 | } elsif ($^O eq 'MSWin32') { |
190 | # Might not need anything here. |
191 | } else { |
192 | print $fh <<"EOS"; |
193 | chdir ext/$pname |
194 | if test ! -f $makefile -a -f Makefile.old; then |
195 | echo "Note: Using Makefile.old" |
196 | make -f Makefile.old $clean_target MAKE=$make $passthru |
197 | else |
198 | if test ! -f $makefile ; then |
199 | echo "Warning: No Makefile!" |
200 | fi |
201 | make $clean_target MAKE=$make $passthru |
202 | fi |
203 | chdir ../$depth |
204 | EOS |
205 | } |
206 | close $fh or die "close $file: $!"; |
207 | } |
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208 | } |
209 | |
210 | if (not -f $makefile) { |
211 | print "Warning: No Makefile!\n"; |
212 | } |
213 | |
214 | if ($target eq 'clean') { |
215 | } |
216 | elsif ($target eq 'realclean') { |
217 | } |
218 | else { |
219 | # Give makefile an opportunity to rewrite itself. |
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220 | # reassure users that life goes on... |
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221 | system( "$run$make config MAKE=$make $passthru" ) |
222 | and print "$make config failed, continuing anyway...\n"; |
223 | } |
224 | |
225 | system( |
226 | "$run$make $target MAKE=$make $makeargs $passthru" |
227 | ) or exit(); |
228 | |
229 | exit($?); |
230 | |
231 | # read config.sh and add its keys to our %ENV |
232 | sub load_config_sh { |
233 | my $file = shift; |
234 | open my $fh, '<', $file or die "Could not open file '$file' as a 'config.sh': $!"; |
235 | while (<$fh>) { |
236 | chomp; |
237 | next if /^\s*#/; |
238 | $ENV{$1} = $3 if /^(?!:)([^\s=]+)=('?)(.*?)\2$/; |
239 | } |
240 | close $fh; |
241 | } |