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Loop over @extspec, calling build_extension() on each.
[perl5.git] / make_ext.pl
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61edc683 1#!./miniperl
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2use strict;
3use warnings;
b8d39eba 4use Config;
75f92628 5
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6# This script acts as a simple interface for building extensions.
7# It primarily used by the perl Makefile:
8#
9# d_dummy $(dynamic_ext): miniperl preplibrary FORCE
e2fabae1 10# @$(RUN) ./miniperl make_ext.pl --target=dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
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11#
12# It may be deleted in a later release of perl so try to
13# avoid using it for other purposes.
14
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15my $is_Win32 = $^O eq 'MSWin32';
16my $is_VMS = $^O eq 'VMS';
17my $is_Unix = !$is_Win32 && !$is_VMS;
18
fc678412 19my (%excl, %incl, %opts, @extspec, @pass_through);
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20
21foreach (@ARGV) {
22 if (/^!(.*)$/) {
23 $excl{$1} = 1;
24 } elsif (/^\+(.*)$/) {
25 $incl{$1} = 1;
26 } elsif (/^--([\w\-]+)$/) {
27 $opts{$1} = 1;
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28 } elsif (/^--([\w\-]+)=(.*)$/) {
29 $opts{$1} = $2;
e2fabae1 30 } elsif (/=/) {
fc678412 31 push @pass_through, $_;
ca5de986 32 } elsif (length) {
e2fabae1 33 push @extspec, $_;
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34 }
35}
36
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37# The Perl Makefile.SH will expand all extensions to
38# lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested)
39# A user wishing to run make_ext might use
40# X (or X/Y or X::Y if nested)
41
42# canonise into X/Y form (pname)
43
44foreach (@extspec) {
45 if (/^lib/) {
46 # Remove lib/auto prefix and /*.* suffix
47 s{^lib/auto/}{};
48 s{[^/]*\.[^/]*$}{};
49 } elsif (/^ext/) {
50 # Remove ext/ prefix and /pm_to_blib suffix
51 s{^ext/}{};
52 s{/pm_to_blib$}{};
53 } elsif (/::/) {
54 # Convert :: to /
55 s{::}{\/}g;
56 } elsif (/\..*o$/) {
57 s/\..*o//;
58 }
59}
60
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61my $makecmd = shift @pass_through; # Should be something like MAKE=make
62unshift @pass_through, 'PERL_CORE=1';
63
e2fabae1 64my $target = $opts{target};
07f3cc2a 65$target = 'all' unless defined $target;
a0d0e21e 66
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67# Previously, $make was taken from config.sh. However, the user might
68# instead be running a possibly incompatible make. This might happen if
69# the user types "gmake" instead of a plain "make", for example. The
70# correct current value of MAKE will come through from the main perl
71# makefile as MAKE=/whatever/make in $makecmd. We'll be cautious in
72# case third party users of this script (are there any?) don't have the
73# MAKE=$(MAKE) argument, which was added after 5.004_03.
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74unless(defined $makecmd and $makecmd =~ /^MAKE=(.*)$/) {
75 die "$0: WARNING: Please include MAKE=\$(MAKE) in \@ARGV\n";
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76}
77
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78my $make = $1 || $Config{make} || $ENV{MAKE};
79# Using an array of 0 or 1 elements makes the subsequent code simpler.
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80my @run = $Config{run};
81@run = () if not defined $run[0] or $run[0] eq '';
a2f19a19 82
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83if (!@extspec) {
84 die "$0: no extension specified\n";
a2f19a19 85}
a0d0e21e 86
07f3cc2a 87if ($target eq '') {
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88 die "make_ext: no make target specified (eg all or clean)\n";
89} elsif ($target !~ /(?:^all|clean)$/) {
90 # for the time being we are strict about what make_ext is used for
91 die "$0: unknown make target '$target'\n";
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92}
93
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94foreach my $pname (@extspec) {
95 my $mname = $pname;
96 $mname =~ s!/!::!g;
97 my $depth = $pname;
98 $depth =~ s![^/]+!..!g;
99 # Always need one more .. for ext/
100 my $up = "../$depth";
101 my $perl = "$up/miniperl";
a2f19a19 102
ca5de986 103 if ($Config{osname} eq 'catamount') {
a2f19a19 104 # Snowball's chance of building extensions.
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105 die "This is $Config{osname}, not building $mname, sorry.\n";
106 }
a2f19a19 107
ca5de986 108 print "\tMaking $mname ($target)\n";
a2f19a19 109
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110 build_extension('ext', "ext/$pname", $up, $perl, "$up/lib",
111 \@pass_through);
112}
a0d0e21e 113
fc678412 114sub build_extension {
ca5de986 115 my ($ext, $ext_dir, $return_dir, $perl, $lib_dir, $pass_through) = @_;
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116 unless (chdir "$ext_dir") {
117 warn "Cannot cd to $ext_dir: $!";
118 return;
119 }
120
121 if (!-f 'Makefile') {
122 print "\nRunning Makefile.PL in $ext_dir\n";
123
124 # Presumably this can be simplified
125 my @cross;
126 if (defined $::Cross::platform) {
127 # Inherited from win32/buildext.pl
128 @cross = "-MCross=$::Cross::platform";
129 } elsif ($opts{cross}) {
130 # Inherited from make_ext.pl
131 @cross = '-MCross';
a2f19a19 132 }
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133
134 my @perl = (@run, $perl, "-I$lib_dir", @cross, 'Makefile.PL',
135 'INSTALLDIRS=perl', 'INSTALLMAN3DIR=none',
136 @$pass_through);
137 print join(' ', @perl), "\n";
138 my $code = system @perl;
139 warn "$code from $ext_dir\'s Makefile.PL" if $code;
140
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141 # Right. The reason for this little hack is that we're sitting inside
142 # a program run by ./miniperl, but there are tasks we need to perform
143 # when the 'realclean', 'distclean' or 'veryclean' targets are run.
144 # Unfortunately, they can be run *after* 'clean', which deletes
145 # ./miniperl
146 # So we do our best to leave a set of instructions identical to what
147 # we would do if we are run directly as 'realclean' etc
148 # Whilst we're perfect, unfortunately the targets we call are not, as
149 # some of them rely on a $(PERL) for their own distclean targets.
150 # But this always used to be a problem with the old /bin/sh version of
151 # this.
e3b84025 152 if ($is_Unix) {
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153 my $suffix = '.sh';
154 foreach my $clean_target ('realclean', 'veryclean') {
ca5de986 155 my $file = "$return_dir/$clean_target$suffix";
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156 open my $fh, '>>', $file or die "open $file: $!";
157 # Quite possible that we're being run in parallel here.
158 # Can't use Fcntl this early to get the LOCK_EX
159 flock $fh, 2 or warn "flock $file: $!";
160 print $fh <<"EOS";
161cd $ext_dir
162if test ! -f Makefile -a -f Makefile.old; then
61edc683 163 echo "Note: Using Makefile.old"
fc678412 164 make -f Makefile.old $clean_target MAKE=$make @pass_through
61edc683 165else
fc678412 166 if test ! -f Makefile ; then
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167 echo "Warning: No Makefile!"
168 fi
fc678412 169 make $clean_target MAKE=$make @pass_through
61edc683 170fi
fc678412 171cd $return_dir
61edc683 172EOS
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173 close $fh or die "close $file: $!";
174 }
61edc683 175 }
fc678412 176 }
a2f19a19 177
fc678412 178 if (not -f 'Makefile') {
a2f19a19 179 print "Warning: No Makefile!\n";
fc678412 180 }
a2f19a19 181
fc678412 182 if (!$target or $target !~ /clean$/) {
a2f19a19 183 # Give makefile an opportunity to rewrite itself.
75f92628 184 # reassure users that life goes on...
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185 my @config = (@run, $make, 'config', @$pass_through);
186 system @config and print "@config failed, continuing anyway...\n";
187 }
188 my @targ = (@run, $make, $target, @$pass_through);
a79902b1 189 print "Making $target in $ext_dir\n@targ\n";
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190 my $code = system @targ;
191 die "Unsuccessful make($ext_dir): code=$code" if $code != 0;
a2f19a19 192
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193 chdir $return_dir || die "Cannot cd to $return_dir: $!";
194}