use Getopt::Long;
use ExtUtils::Manifest qw(maniread);
use vars qw(%formats $VERBOSE $INCPATH $LIBPATH $NOLOG $DEBUG_MALLOC $MANUAL $CFLAGS $LFLAGS $DFLAGS);
+use lib 'inc';
+use Devel::CheckLib;
#
# IM_INCPATH colon seperated list of paths to extra include paths
# IM_DFLAGS Extra flags to pass to the preprocessor
# IM_SUPPRESS_PROMPT Suppress the prompt asking about gif support
+my $KEEP_FILES = $ENV{IMAGER_KEEP_FILES};
+
getenv(); # get environment variables
my $lext=$Config{'so'}; # Get extensions of libraries
if ($VERBOSE) { print Dumper(\%opts); }
mkdir('testout',0777); # since we cannot include it in the archive.
+-d "probe" and rmdir "probe";
+
WriteMakefile(%opts);
exit;
return map $path, @l;
}
-
-sub checkformat {
- my $frm=shift;
-
- print " checkformat($frm)\n" if $VERBOSE;
-
- my $probe_array = $formats{$frm}{'code'};
- if ($probe_array) {
- print " Calling probe function\n" if $VERBOSE;
- if (ref $probe_array ne 'ARRAY') {
- $probe_array = [ $probe_array ];
- }
- for my $func (@$probe_array) {
- return 1 if $func->($formats{$frm}, $frm);
- }
- }
+sub _probe_default {
+ my ($format, $frm) = @_;
my $lib_check=$formats{$frm}{'libcheck'};
my $inc_check=$formats{$frm}{'inccheck'};
return 0;
}
+sub checkformat {
+ my $frm=shift;
+
+ print " checkformat($frm)\n" if $VERBOSE;
+
+ my $format = $formats{$frm};
+
+ my @probes;
+ if (my $code = $format->{'code'}) {
+ if (ref $code eq 'ARRAY') {
+ push @probes, @$code;
+ }
+ else {
+ push @probes, $code;
+ }
+ }
+ push @probes, \&_probe_default;
+
+ print " Calling probe function\n" if $VERBOSE;
+ my $found;
+ for my $func (@probes) {
+ if ($func->($format, $frm)) {
+ ++$found;
+ last;
+ }
+ }
+
+ $found or return;
+
+ if ($format->{postcheck}) {
+ print " Calling postcheck function\n" if $VERBOSE;
+ $format->{postcheck}->($format, $frm)
+ or return;
+ }
+
+ return 1;
+}
+
sub pathcheck {
if ($VERBOSE) {
objfiles=>'tiff.o',
docs=>q{
In order to use tiff with this module you need to have libtiff
- installed on your computer}
+ installed on your computer},
+ postcheck => \&postcheck_tiff,
};
$formats{'png'}={
$path;
}
+sub postcheck_tiff {
+ my ($format, $frm) = @_;
+
+ -d "probe" or mkdir "probe";
+
+ my $tiffver_name = "probe/tiffver.txt";
+
+ my $good =
+ eval {
+ assert_lib
+ (
+ debug => $VERBOSE,
+ incpath => $format->{incdir},
+ libpath => $format->{libdir},
+ lib => "tiff",
+ header => [ qw(stdio.h tiffio.h) ],
+ function => <<FUNCTION,
+ {
+ const char *vers = TIFFGetVersion();
+ FILE *f = fopen("$tiffver_name", "wb");
+ if (!f)
+ return 1;
+ fputs(vers, f);
+ if (fclose(f))
+ return 1;
+ return 0;
+ }
+FUNCTION
+ );
+ 1;
+ };
+
+ unless ($good && -s $tiffver_name
+ && open(VERS, "< probe/tiffver.txt")) {
+ unlink $tiffver_name unless $KEEP_FILES;
+ print <<EOS;
+ **tiff: cannot determine libtiff version number
+ tiff: DISABLED
+EOS
+ return;
+ }
+
+ # version file seems to be there, load it up
+ my $ver_str = do { local $/; <VERS> };
+ close VERS;
+ unlink $tiffver_name unless $KEEP_FILES;
+
+ my ($version) = $ver_str =~ /(\d+\.\d+\.\d+)/;
+
+ if ($version eq '3.9.0') {
+ print <<EOS;
+ **tiff: libtiff 3.9.0 introduced a serious bug, please install 3.9.1
+ tiff: DISABLED
+EOS
+ return;
+ }
+
+ return 1;
+}
+
# This isn't a module, but some broken tools, like
# Module::Depends::Instrusive insist on treating it like one.
#
--- /dev/null
+# $Id: CheckLib.pm,v 1.25 2008/10/27 12:16:23 drhyde Exp $
+
+package #
+Devel::CheckLib;
+
+use strict;
+use vars qw($VERSION @ISA @EXPORT);
+$VERSION = '0.699_001';
+use Config;
+
+use File::Spec;
+use File::Temp;
+
+require Exporter;
+@ISA = qw(Exporter);
+@EXPORT = qw(assert_lib check_lib_or_exit);
+
+# localising prevents the warningness leaking out of this module
+local $^W = 1; # use warnings is a 5.6-ism
+
+_findcc(); # bomb out early if there's no compiler
+
+=head1 NAME
+
+Devel::CheckLib - check that a library is available
+
+=head1 DESCRIPTION
+
+Devel::CheckLib is a perl module that checks whether a particular C
+library and its headers are available.
+
+=head1 SYNOPSIS
+
+ use Devel::CheckLib;
+
+ check_lib_or_exit( lib => 'jpeg', header => 'jpeglib.h' );
+ check_lib_or_exit( lib => [ 'iconv', 'jpeg' ] );
+
+ # or prompt for path to library and then do this:
+ check_lib_or_exit( lib => 'jpeg', libpath => $additional_path );
+
+=head1 USING IT IN Makefile.PL or Build.PL
+
+If you want to use this from Makefile.PL or Build.PL, do
+not simply copy the module into your distribution as this may cause
+problems when PAUSE and search.cpan.org index the distro. Instead, use
+the use-devel-checklib script.
+
+=head1 HOW IT WORKS
+
+You pass named parameters to a function, describing to it how to build
+and link to the libraries.
+
+It works by trying to compile some code - which defaults to this:
+
+ int main(void) { return 0; }
+
+and linking it to the specified libraries. If something pops out the end
+which looks executable, it gets executed, and if main() returns 0 we know
+that it worked. That tiny program is
+built once for each library that you specify, and (without linking) once
+for each header file.
+
+If you want to check for the presence of particular functions in a
+library, or even that those functions return particular results, then
+you can pass your own function body for main() thus:
+
+ check_lib_or_exit(
+ function => 'foo();if(libversion() > 5) return 0; else return 1;'
+ incpath => ...
+ libpath => ...
+ lib => ...
+ header => ...
+ );
+
+In that case, it will fail to build if either foo() or libversion() don't
+exist, and main() will return the wrong value if libversion()'s return
+value isn't what you want.
+
+=head1 FUNCTIONS
+
+All of these take the same named parameters and are exported by default.
+To avoid exporting them, C<use Devel::CheckLib ()>.
+
+=head2 assert_lib
+
+This takes several named parameters, all of which are optional, and dies
+with an error message if any of the libraries listed can
+not be found. B<Note>: dying in a Makefile.PL or Build.PL may provoke
+a 'FAIL' report from CPAN Testers' automated smoke testers. Use
+C<check_lib_or_exit> instead.
+
+The named parameters are:
+
+=over
+
+=item lib
+
+Must be either a string with the name of a single
+library or a reference to an array of strings of library names. Depending
+on the compiler found, library names will be fed to the compiler either as
+C<-l> arguments or as C<.lib> file names. (E.g. C<-ljpeg> or C<jpeg.lib>)
+
+=item libpath
+
+a string or an array of strings
+representing additional paths to search for libraries.
+
+=item LIBS
+
+a C<ExtUtils::MakeMaker>-style space-seperated list of
+libraries (each preceded by '-l') and directories (preceded by '-L').
+
+This can also be supplied on the command-line.
+
+=back
+
+And libraries are no use without header files, so ...
+
+=over
+
+=item header
+
+Must be either a string with the name of a single
+header file or a reference to an array of strings of header file names.
+
+=item incpath
+
+a string or an array of strings
+representing additional paths to search for headers.
+
+=item INC
+
+a C<ExtUtils::MakeMaker>-style space-seperated list of
+incpaths, each preceded by '-I'.
+
+This can also be supplied on the command-line.
+
+=back
+
+=head2 check_lib_or_exit
+
+This behaves exactly the same as C<assert_lib()> except that instead of
+dieing, it warns (with exactly the same error message) and exits.
+This is intended for use in Makefile.PL / Build.PL
+when you might want to prompt the user for various paths and
+things before checking that what they've told you is sane.
+
+If any library or header is missing, it exits with an exit value of 0 to avoid
+causing a CPAN Testers 'FAIL' report. CPAN Testers should ignore this
+result -- which is what you want if an external library dependency is not
+available.
+
+=cut
+
+sub check_lib_or_exit {
+ eval 'assert_lib(@_)';
+ if($@) {
+ warn $@;
+ exit;
+ }
+}
+
+sub assert_lib {
+ my %args = @_;
+ my (@libs, @libpaths, @headers, @incpaths);
+
+ # FIXME: these four just SCREAM "refactor" at me
+ @libs = (ref($args{lib}) ? @{$args{lib}} : $args{lib})
+ if $args{lib};
+ @libpaths = (ref($args{libpath}) ? @{$args{libpath}} : $args{libpath})
+ if $args{libpath};
+ @headers = (ref($args{header}) ? @{$args{header}} : $args{header})
+ if $args{header};
+ @incpaths = (ref($args{incpath}) ? @{$args{incpath}} : $args{incpath})
+ if $args{incpath};
+
+ # work-a-like for Makefile.PL's LIBS and INC arguments
+ # if given as command-line argument, append to %args
+ for my $arg (@ARGV) {
+ for my $mm_attr_key qw(LIBS INC) {
+ if (my ($mm_attr_value) = $arg =~ /\A $mm_attr_key = (.*)/x) {
+ # it is tempting to put some \s* into the expression, but the
+ # MM command-line parser only accepts LIBS etc. followed by =,
+ # so we should not be any more lenient with whitespace than that
+ $args{$mm_attr_key} .= " $mm_attr_value";
+ }
+ }
+ }
+
+ # using special form of split to trim whitespace
+ if(defined($args{LIBS})) {
+ foreach my $arg (split(' ', $args{LIBS})) {
+ die("LIBS argument badly-formed: $arg\n") unless($arg =~ /^-l/i);
+ push @{$arg =~ /^-l/ ? \@libs : \@libpaths}, substr($arg, 2);
+ }
+ }
+ if(defined($args{INC})) {
+ foreach my $arg (split(' ', $args{INC})) {
+ die("INC argument badly-formed: $arg\n") unless($arg =~ /^-I/);
+ push @incpaths, substr($arg, 2);
+ }
+ }
+
+ my @cc = _findcc();
+ my @missing;
+ my @wrongresult;
+
+ # first figure out which headers we can't find ...
+ for my $header (@headers) {
+ my($ch, $cfile) = File::Temp::tempfile(
+ 'assertlibXXXXXXXX', SUFFIX => '.c'
+ );
+ print $ch qq{#include <$header>\nint main(void) { return 0; }\n};
+ close($ch);
+ my $exefile = File::Temp::mktemp( 'assertlibXXXXXXXX' ) . $Config{_exe};
+ my @sys_cmd;
+ # FIXME: re-factor - almost identical code later when linking
+ if ( $Config{cc} eq 'cl' ) { # Microsoft compiler
+ require Win32;
+ @sys_cmd = (
+ @cc,
+ $cfile,
+ "/Fe$exefile",
+ (map { '/I'.Win32::GetShortPathName($_) } @incpaths)
+ );
+ } elsif($Config{cc} =~ /bcc32(\.exe)?/) { # Borland
+ @sys_cmd = (
+ @cc,
+ (map { "-I$_" } @incpaths),
+ "-o$exefile",
+ $cfile
+ );
+ } else { # Unix-ish: gcc, Sun, AIX (gcc, cc), ...
+ @sys_cmd = (
+ @cc,
+ $cfile,
+ (map { "-I$_" } @incpaths),
+ "-o", "$exefile"
+ );
+ }
+ warn "# @sys_cmd\n" if $args{debug};
+ my $rv = $args{debug} ? system(@sys_cmd) : _quiet_system(@sys_cmd);
+ push @missing, $header if $rv != 0 || ! -x $exefile;
+ _cleanup_exe($exefile);
+ unlink $cfile;
+ }
+
+ # now do each library in turn with headers
+ my($ch, $cfile) = File::Temp::tempfile(
+ 'assertlibXXXXXXXX', SUFFIX => '.c'
+ );
+ print $ch qq{#include <$_>\n} foreach (@headers);
+ print $ch "int main(void) { ".($args{function} || 'return 0;')." }\n";
+ close($ch);
+ for my $lib ( @libs ) {
+ my $exefile = File::Temp::mktemp( 'assertlibXXXXXXXX' ) . $Config{_exe};
+ my @sys_cmd;
+ if ( $Config{cc} eq 'cl' ) { # Microsoft compiler
+ require Win32;
+ my @libpath = map {
+ q{/libpath:} . Win32::GetShortPathName($_)
+ } @libpaths;
+ @sys_cmd = (
+ @cc,
+ $cfile,
+ "${lib}.lib",
+ "/Fe$exefile",
+ "/link",
+ (map {'/libpath:'.Win32::GetShortPathName($_)} @libpaths),
+ (map { '/I'.Win32::GetShortPathName($_) } @incpaths)
+ );
+ } elsif($Config{cc} eq 'CC/DECC') { # VMS
+ } elsif($Config{cc} =~ /bcc32(\.exe)?/) { # Borland
+ @sys_cmd = (
+ @cc,
+ "-o$exefile",
+ "-l$lib",
+ (map { "-I$_" } @incpaths),
+ (map { "-L$_" } @libpaths),
+ $cfile);
+ } else { # Unix-ish
+ # gcc, Sun, AIX (gcc, cc)
+ @sys_cmd = (
+ @cc,
+ $cfile,
+ "-o", "$exefile",
+ "-l$lib",
+ (map { "-I$_" } @incpaths),
+ (map { "-L$_" } @libpaths)
+ );
+ }
+ warn "# @sys_cmd\n" if $args{debug};
+ my $rv = $args{debug} ? system(@sys_cmd) : _quiet_system(@sys_cmd);
+ push @missing, $lib if $rv != 0 || ! -x $exefile;
+ push @wrongresult, $lib if $rv == 0 && -x $exefile && system(File::Spec->rel2abs($exefile)) != 0;
+ _cleanup_exe($exefile);
+ }
+ unlink $cfile;
+
+ my $miss_string = join( q{, }, map { qq{'$_'} } @missing );
+ die("Can't link/include $miss_string\n") if @missing;
+ my $wrong_string = join( q{, }, map { qq{'$_'} } @wrongresult);
+ die("wrong result: $wrong_string\n") if @wrongresult;
+}
+
+sub _cleanup_exe {
+ my ($exefile) = @_;
+ my $ofile = $exefile;
+ $ofile =~ s/$Config{_exe}$/$Config{_o}/;
+ unlink $exefile if -f $exefile;
+ unlink $ofile if -f $ofile;
+ unlink "$exefile\.manifest" if -f "$exefile\.manifest";
+ return
+}
+
+sub _findcc {
+ my @paths = split(/$Config{path_sep}/, $ENV{PATH});
+ my @cc = split(/\s+/, $Config{cc});
+ return @cc if -x $cc[0];
+ foreach my $path (@paths) {
+ my $compiler = File::Spec->catfile($path, $cc[0]) . $Config{_exe};
+ return ($compiler, @cc[1 .. $#cc]) if -x $compiler;
+ }
+ die("Couldn't find your C compiler\n");
+}
+
+# code substantially borrowed from IPC::Run3
+sub _quiet_system {
+ my (@cmd) = @_;
+
+ # save handles
+ local *STDOUT_SAVE;
+ local *STDERR_SAVE;
+ open STDOUT_SAVE, ">&STDOUT" or die "CheckLib: $! saving STDOUT";
+ open STDERR_SAVE, ">&STDERR" or die "CheckLib: $! saving STDERR";
+
+ # redirect to nowhere
+ local *DEV_NULL;
+ open DEV_NULL, ">" . File::Spec->devnull
+ or die "CheckLib: $! opening handle to null device";
+ open STDOUT, ">&" . fileno DEV_NULL
+ or die "CheckLib: $! redirecting STDOUT to null handle";
+ open STDERR, ">&" . fileno DEV_NULL
+ or die "CheckLib: $! redirecting STDERR to null handle";
+
+ # run system command
+ my $rv = system(@cmd);
+
+ # restore handles
+ open STDOUT, ">&" . fileno STDOUT_SAVE
+ or die "CheckLib: $! restoring STDOUT handle";
+ open STDERR, ">&" . fileno STDERR_SAVE
+ or die "CheckLib: $! restoring STDERR handle";
+
+ return $rv;
+}
+
+=head1 PLATFORMS SUPPORTED
+
+You must have a C compiler installed. We check for C<$Config{cc}>,
+both literally as it is in Config.pm and also in the $PATH.
+
+It has been tested with varying degrees on rigourousness on:
+
+=over
+
+=item gcc (on Linux, *BSD, Mac OS X, Solaris, Cygwin)
+
+=item Sun's compiler tools on Solaris
+
+=item IBM's tools on AIX
+
+=item SGI's tools on Irix 6.5
+
+=item Microsoft's tools on Windows
+
+=item MinGW on Windows (with Strawberry Perl)
+
+=item Borland's tools on Windows
+
+=item QNX
+
+=back
+
+=head1 WARNINGS, BUGS and FEEDBACK
+
+This is a very early release intended primarily for feedback from
+people who have discussed it. The interface may change and it has
+not been adequately tested.
+
+Feedback is most welcome, including constructive criticism.
+Bug reports should be made using L<http://rt.cpan.org/> or by email.
+
+When submitting a bug report, please include the output from running:
+
+ perl -V
+ perl -MDevel::CheckLib -e0
+
+=head1 SEE ALSO
+
+L<Devel::CheckOS>
+
+L<Probe::Perl>
+
+=head1 AUTHORS
+
+David Cantrell E<lt>david@cantrell.org.ukE<gt>
+
+David Golden E<lt>dagolden@cpan.orgE<gt>
+
+Thanks to the cpan-testers-discuss mailing list for prompting us to write it
+in the first place;
+
+to Chris Williams for help with Borland support.
+
+=head1 COPYRIGHT and LICENCE
+
+Copyright 2007 David Cantrell. Portions copyright 2007 David Golden.
+
+This module is free-as-in-speech software, and may be used, distributed,
+and modified under the same conditions as perl itself.
+
+=head1 CONSPIRACY
+
+This module is also free-as-in-mason software.
+
+=cut
+
+1;
projects / imager.git / commitdiff