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 my $makecmd = shift @pass_through; # Should be something like MAKE=make
38 unshift @pass_through, 'PERL_CORE=1';
40 my $target = $opts{target};
41 $target = 'all' unless defined $target;
42 my $extspec = $extspec[0];
44 # Previously, $make was taken from config.sh. However, the user might
45 # instead be running a possibly incompatible make. This might happen if
46 # the user types "gmake" instead of a plain "make", for example. The
47 # correct current value of MAKE will come through from the main perl
48 # makefile as MAKE=/whatever/make in $makecmd. We'll be cautious in
49 # case third party users of this script (are there any?) don't have the
50 # MAKE=$(MAKE) argument, which was added after 5.004_03.
52 if (defined($makecmd) and $makecmd =~ /^MAKE=(.*)$/) {
56 print "ext/util/make_ext: WARNING: Please include MAKE=\$(MAKE)\n";
57 print "\tin your call to make_ext. See ext/util/make_ext for details.\n";
61 # fallback to config.sh's MAKE
62 $make ||= $Config{make} || $ENV{MAKE};
63 my @run = $Config{run};
64 @run = () if not defined $run[0] or $run[0] eq '';
66 if (!defined($extspec) or $extspec eq '') {
67 print "make_ext: no extension specified\n";
72 print "make_ext: no make target specified (eg all or clean)\n";
75 elsif ($target !~ /(?:^all|clean)$/) {
76 # for the time being we are strict about what make_ext is used for
77 print "make_ext: unknown make target '$target'\n";
81 # The Perl Makefile.SH will expand all extensions to
82 # lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested)
83 # A user wishing to run make_ext might use
84 # X (or X/Y or X::Y if nested)
86 # canonise into X/Y form (pname)
89 if ($extspec =~ /^lib/) {
90 # Remove lib/auto prefix and /*.* suffix
91 $pname =~ s{^lib/auto/}{};
92 $pname =~ s{[^/]*\.[^/]*$}{};
94 elsif ($extspec =~ /^ext/) {
95 # Remove ext/ prefix and /pm_to_blib suffix
97 $pname =~ s{/pm_to_blib$}{};
99 elsif ($extspec =~ /::/) {
101 $pname =~ s{::}{\/}g;
103 elsif ($extspec =~ /\..*o$/) {
110 $depth =~ s![^/]+!..!g;
111 # Always need one more .. for ext/
112 my $up = "../$depth";
113 my $perl = "$up/miniperl";
115 if (not -d "ext/$pname") {
116 print "\tSkipping $extspec (directory does not exist)\n";
117 exit(0); # not an error ?
120 if ($Config{osname} eq 'catamount') {
121 # Snowball's chance of building extensions.
122 print "This is $Config{osname}, not building $mname, sorry.\n";
126 print "\tMaking $mname ($target)\n";
128 build_extension('ext', "ext/$pname", $up, "$up/lib", \@pass_through);
130 sub build_extension {
131 my ($ext, $ext_dir, $return_dir, $lib_dir, $pass_through) = @_;
132 unless (chdir "$ext_dir") {
133 warn "Cannot cd to $ext_dir: $!";
137 if (!-f 'Makefile') {
138 print "\nRunning Makefile.PL in $ext_dir\n";
140 # Presumably this can be simplified
142 if (defined $::Cross::platform) {
143 # Inherited from win32/buildext.pl
144 @cross = "-MCross=$::Cross::platform";
145 } elsif ($opts{cross}) {
146 # Inherited from make_ext.pl
150 my @perl = (@run, $perl, "-I$lib_dir", @cross, 'Makefile.PL',
151 'INSTALLDIRS=perl', 'INSTALLMAN3DIR=none',
153 print join(' ', @perl), "\n";
154 my $code = system @perl;
155 warn "$code from $ext_dir\'s Makefile.PL" if $code;
157 # Right. The reason for this little hack is that we're sitting inside
158 # a program run by ./miniperl, but there are tasks we need to perform
159 # when the 'realclean', 'distclean' or 'veryclean' targets are run.
160 # Unfortunately, they can be run *after* 'clean', which deletes
162 # So we do our best to leave a set of instructions identical to what
163 # we would do if we are run directly as 'realclean' etc
164 # Whilst we're perfect, unfortunately the targets we call are not, as
165 # some of them rely on a $(PERL) for their own distclean targets.
166 # But this always used to be a problem with the old /bin/sh version of
170 foreach my $clean_target ('realclean', 'veryclean') {
171 my $file = "../$depth/$clean_target$suffix";
172 open my $fh, '>>', $file or die "open $file: $!";
173 # Quite possible that we're being run in parallel here.
174 # Can't use Fcntl this early to get the LOCK_EX
175 flock $fh, 2 or warn "flock $file: $!";
178 if test ! -f Makefile -a -f Makefile.old; then
179 echo "Note: Using Makefile.old"
180 make -f Makefile.old $clean_target MAKE=$make @pass_through
182 if test ! -f Makefile ; then
183 echo "Warning: No Makefile!"
185 make $clean_target MAKE=$make @pass_through
189 close $fh or die "close $file: $!";
194 if (not -f 'Makefile') {
195 print "Warning: No Makefile!\n";
198 if (!$target or $target !~ /clean$/) {
199 # Give makefile an opportunity to rewrite itself.
200 # reassure users that life goes on...
201 my @config = (@run, $make, 'config', @$pass_through);
202 system @config and print "@config failed, continuing anyway...\n";
204 my @targ = (@run, $make, $target, @$pass_through);
205 print "Making $target in $ext_dir\n$@targ\n";
206 my $code = system @targ;
207 die "Unsuccessful make($ext_dir): code=$code" if $code != 0;
209 chdir $return_dir || die "Cannot cd to $return_dir: $!";