6 # This script acts as a simple interface for building extensions.
7 # It primarily used by the perl Makefile:
9 # d_dummy $(dynamic_ext): miniperl preplibrary FORCE
10 # @$(RUN) ./miniperl make_ext.pl --target=dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
12 # It may be deleted in a later release of perl so try to
13 # avoid using it for other purposes.
15 my $is_Win32 = $^O eq 'MSWin32';
16 my $is_VMS = $^O eq 'VMS';
17 my $is_Unix = !$is_Win32 && !$is_VMS;
19 my (%excl, %incl, %opts, @extspec, @pass_through);
24 } elsif (/^\+(.*)$/) {
26 } elsif (/^--([\w\-]+)$/) {
28 } elsif (/^--([\w\-]+)=(.*)$/) {
31 push @pass_through, $_;
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)
42 # canonise into X/Y form (pname)
46 # Remove lib/auto prefix and /*.* suffix
50 # Remove ext/ prefix and /pm_to_blib suffix
61 my $makecmd = shift @pass_through; # Should be something like MAKE=make
62 unshift @pass_through, 'PERL_CORE=1';
64 my $target = $opts{target};
65 $target = 'all' unless defined $target;
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.
74 unless(defined $makecmd and $makecmd =~ /^MAKE=(.*)$/) {
75 die "$0: WARNING: Please include MAKE=\$(MAKE) in \@ARGV\n";
78 my $make = $1 || $Config{make} || $ENV{MAKE};
79 # Using an array of 0 or 1 elements makes the subsequent code simpler.
80 my @run = $Config{run};
81 @run = () if not defined $run[0] or $run[0] eq '';
84 die "$0: no extension specified\n";
88 die "make_ext: no make target specified (eg all or clean)\n";
89 } elsif ($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";
94 foreach my $pname (@extspec) {
98 $depth =~ s![^/]+!..!g;
99 # Always need one more .. for ext/
100 my $up = "../$depth";
101 my $perl = "$up/miniperl";
103 if ($Config{osname} eq 'catamount') {
104 # Snowball's chance of building extensions.
105 die "This is $Config{osname}, not building $mname, sorry.\n";
108 print "\tMaking $mname ($target)\n";
110 build_extension('ext', "ext/$pname", $up, $perl, "$up/lib",
114 sub build_extension {
115 my ($ext, $ext_dir, $return_dir, $perl, $lib_dir, $pass_through) = @_;
116 unless (chdir "$ext_dir") {
117 warn "Cannot cd to $ext_dir: $!";
121 if (!-f 'Makefile') {
122 print "\nRunning Makefile.PL in $ext_dir\n";
124 # Presumably this can be simplified
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
134 my @perl = (@run, $perl, "-I$lib_dir", @cross, 'Makefile.PL',
135 'INSTALLDIRS=perl', 'INSTALLMAN3DIR=none',
137 print join(' ', @perl), "\n";
138 my $code = system @perl;
139 warn "$code from $ext_dir\'s Makefile.PL" if $code;
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
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
154 foreach my $clean_target ('realclean', 'veryclean') {
155 my $file = "$return_dir/$clean_target$suffix";
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: $!";
162 if test ! -f Makefile -a -f Makefile.old; then
163 echo "Note: Using Makefile.old"
164 make -f Makefile.old $clean_target MAKE=$make @pass_through
166 if test ! -f Makefile ; then
167 echo "Warning: No Makefile!"
169 make $clean_target MAKE=$make @pass_through
173 close $fh or die "close $file: $!";
178 if (not -f 'Makefile') {
179 print "Warning: No Makefile!\n";
182 if (!$target or $target !~ /clean$/) {
183 # Give makefile an opportunity to rewrite itself.
184 # reassure users that life goes on...
185 my @config = (@run, $make, 'config', @$pass_through);
186 system @config and print "@config failed, continuing anyway...\n";
188 my @targ = (@run, $make, $target, @$pass_through);
189 print "Making $target in $ext_dir\n@targ\n";
190 my $code = system @targ;
191 die "Unsuccessful make($ext_dir): code=$code" if $code != 0;
193 chdir $return_dir || die "Cannot cd to $return_dir: $!";