#!/usr/bin/perl

use strict;
use warnings;
use IPC::Open2;
use Cwd;
use constant DOCKER => -e '/.dockerenv';

my $pwd = getcwd();
# how to run poldek
my @ignore = qw(vserver-packages python-devel-src);
my @poldek;
if (DOCKER) {
	push(@poldek, qw[poldek]);
} else {
	push(@poldek, qw[sudo poldek -n th-x86_64-ready],
		"--cachedir=$pwd/poldekcache",
		"--conf=$pwd/poldekconf/poldek.conf",
	);
}
push(@poldek, (
	"--skip-installed",
	"-O", "ignore=" . (join " ", @ignore)
));

# if multiple packages provide some funcionality those will be selected:
my %preferred = (
	"automake" => +1,
	"autoconf" => +1,
	"pkgconfig" => +1,

	"python" => +1,
	"python-modules" => +1,
	"python-setuptools" => +1,

	"perl-modules" => +1,
	"perl-Encode" => +2,

	"zlib-devel" => +1,
	"libstdc++-devel" => +1,
	"libusb-compat-devel" => +1,
	"libjpeg-devel" => +1,
	"libpng-devel" => +1,
	"libsamplerate-devel" => +1,
	"pulseaudio-devel" => +1,
	"xorg-lib-libXrandr-devel" => +1,
	"sqlite-devel" => +1,

	"ice-devel" => -1,
);

# translate package name to provides name
my %translate = (
	"gcc-c++" => "libstdc++-devel",
	"rarian-compat" => "scrollkeeper",
	"Mesa-libGL" => "OpenGL",
	"Mesa-libGL-devel" => "OpenGL-devel",
	"Mesa-libGLU-devel" => "OpenGL-GLU-devel",
);

my @skip = qw(hostname git svn svnversion mt gawk);
my %skip;
@skip{ @skip } = (1) x scalar @skip;

# for m4 in *.m4; do R=$(rpm -qf $m4); R=${R%-*-*}; \
#   awk -vr=$R '/^\s*(AC_DEFUN|AU_ALIAS)/ { gsub(/\].*/,""); gsub(/.*\[/,""); print r " " $0}' $m4; \
# done | sort | awk '{print "\t\"" $2 "\" => \"" $1 "\","}'
my %ac2br = do (DOCKER ? './cleanbuild/findbr-ac2br' : './findbr-ac2br');

my %cmake2br = (
	"findkde4:44" => "kde4-kdelibs",
	"findmsgfmt" => "gettext-tools",
	"findpythoninterp" => "python",
);

BEGIN {
	$SIG{__WARN__} = sub
	{
		local $_ = shift;
		chomp;
		print STDERR "\033[31;1m" . $_ . "\033[0m\n"
	};
}

my $builddir = shift @ARGV;
my @lines = <ARGV>;

my $reason;

my %out;
sub add_br
{
	my $pkg = shift;
	my $msg = shift || $reason;
	if ( ref $pkg ) {
		foreach my $p ( @$pkg ) {
			add_br( $p, $msg );
		}
		return;
	}

	$msg =~ s/\n/ # /sg;

	$pkg = $translate{ $pkg } || $pkg;

	return if exists $out{ $pkg };
	$out{ $pkg } = $msg;
	print STDERR "\033[33;1madding: $pkg => $msg\033[0m\n";
}

sub poldek_cmd
{
	my $cmd = shift;

	warn "Poldek: $cmd\n";

	my @cmd = (@poldek, "--shcmd=".$cmd);
	open my $fh, '-|', @cmd or die "$!: @cmd";
	my @read = <$fh>;
	close $fh or die $!;

	return wantarray ? @read : \@read;
}

my $check_ac = 0;
my $check_config_log = undef;
my $check_mkmf_log = undef;

my %checked_files;
sub poldek_file
{
	my @files;
	foreach ( @_ ) {
		next if $checked_files{ $_ };
		$checked_files{ $_ } = 1;
		push @files, $_;
	}
	return unless @files;

	my $search = join "; ", map "search -f $_", @files;
	warn "Reason: $reason\n";
	my @read = poldek_cmd( $search );

	local $_;
	my @found;
	while ( $_ = shift @read ) {
		if ( /(\d+) package\(s\) found:$/ ) {
			foreach my $i ( 1..$1 ) {
				$_ = shift @read;
				chomp;
				$_ =~ /^(.*)-.*?-.*?$/;
				push @found, $1;
			}
		}
	}

	return unless @found;

	my $found = $found[0];
	if ( @found > 1 ) {
		my $i = 0.0;
		my %pts = map { ( $_ => ( ($i += 0.001) + ( $preferred{ $_ } || 0 ) ) ) }
			reverse @found;
		my @pref = sort { $pts{$b} <=> $pts{$a} } @found;
		my $pref = join ", ", map "$_ => $pts{$_}", @pref;
		warn "Multiple found: $pref\n";
		$found = $pref[0];
	}

	$found = $translate{ $found } if $translate{ $found };

	add_br( $found );
}

my $pkglist;
sub get_pkglist
{
	my %pkglist;
	my $read = poldek_cmd( "ls" );
	foreach ( @$read ) {
		chomp;
		next unless /(\S+)-.*?-.*?\.[a-z0-9_]+$/;
		my $pkg = $1;
		$pkglist{ lc $pkg } = $pkg;
	}
	$pkglist = \%pkglist;
}

sub guess_package
{
	my $origname = shift;
	get_pkglist() unless $pkglist;
	return unless defined $origname;
	my $name = lc $origname;
	my @try = (
		"lib$name-devel",
		"$name-devel",
		"$name",
		"lib$name-.*-devel",
		"$name-.*-devel",
		".*-lib$name-devel",
		".*-$name-devel",
		".*-lib$name-.*-devel",
		".*-$name-.*-devel",
	);
	my @select;
	for my $k ( keys %$pkglist ) {
		if ( $k =~ /$name/ ) {
			push @select, $k;
		}
	}
	@select = sort @select;

	foreach my $try ( @try ) {
		foreach my $pkg ( @select ) {
			if ( $pkg =~ /^$try$/ ) {
				warn "guessed: $origname => $pkglist->{ $pkg }\n";
				return $pkglist->{ $pkg };
			}
		}
	}
	warn "$origname not guessed\n";
	return undef;
}

start_check:

my %checked;
my $cmake_get_call = 0;
my $cmake_pkg_list = 0;
my $py_ver = undef;
while ( $_ = shift @lines ) {
	chomp;
	#next if $checked{ $_ };
	#$checked{ $_ } = 1;

	# try to extract current python version from setup.py run
	if (m{^copying .+ -> build-(\d+)/lib/}) {
		$py_ver = $1;
		warn "py_ver set to '$py_ver'\n";
	}

	$reason = $_;
	if ( /^\S+: (\S+): (?:Command )?not found$/ or /.*configure\[\d+\]: (\S+): not found$/
			or m{which: no (\S+) in \(.*/bin.*\)}
			or m{\S+: (\S+): command not found$}
			or m{(?:/usr/bin/)?env: (\S+): No such file or directory}
			or m{flock: (\S+): No such file or directory}
			or m{Can't exec "(\S+)": No such file or directory} ) {
		my $exec = $1;
		$exec = $1 if $exec =~ m{^"(.*)"$};
		next if $skip{ $exec };
		warn "Looking for executable $exec\n";
		if ( $exec =~ m#^/# ) {
			poldek_file( $exec );
		}
		poldek_file( "/usr/bin/$exec", "/bin/$exec" );
	}

	if ( /\S+\.[ch](?:pp|xx|c)?:\d+:\d+: error: (\S+): No such file or directory$/ or
		/\S+\.[ch](?:pp|xx|c)?:\d+:\d+: fatal error: (\S+): No such file or directory$/ or
		/Can't find the '(\S+\.h)'? header/
	) {
		my $h = $1;
		warn "Looking for C(++) header $h\n";
		poldek_file( "/usr/include*/$h" );
	}

	if (m{^ImportError: No module named (\S+)$}
		or m{^ERROR: Cannot find .+: No module named (\S+)$}
		or m{^ERROR: Failed to import the ".+" module: No module named (\S+)$}
		or m{^distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse\('([^'>=]+).*'\)}
		or                           m{^error: Could not find suitable distribution for Requirement.parse\('([^'>=]+).*'\)}
		or m{^Couldn't find index page for '(\S+)'}
		) {
		my $mod = $1;
		$mod =~ s#\.#/#g;
		warn "Looking for Python$py_ver module $mod\n";
		poldek_file(
				"/usr/share/python$py_ver*/site-packages/$mod/__init__.py*",
				"/usr/share/python$py_ver*/$mod/__init__.py*",
				"/usr/share/python$py_ver*/site-packages/$mod.py*",
				"/usr/share/python$py_ver*/$mod.py*",
				"/usr/lib*/python$py_ver*/site-packages/$mod/__init__.py*",
				"/usr/lib*/python$py_ver*/$mod/__init__.py*",
				"/usr/lib*/python$py_ver*/site-packages/$mod.py*",
				"/usr/lib*/python$py_ver*/$mod.py*",
				"/usr/lib*/python$py_ver*/site-packages/_$mod.so",
				"/usr/lib*/python$py_ver*/_$mod.so",
				"/usr/lib*/python$py_ver*/site-packages/$mod.so",
				"/usr/lib*/python$py_ver*/$mod.so",
		);
	}

	if (
		m{^-- Could NOT find Sphinx \(missing:  SPHINX_EXECUTABLE\)}
	) {
		add_br("sphinx-pdg");
		next;
	}

	if (
		m{^You need to install the (\S+) module} or
		m{\*\*\*Error\*\*\*: You must have (\S+) >= (\S+) installed}
	) {
		add_br($1);
		next;
	}

	if (
		m{^cannot load such file -- (\S+)} or
		m{in `require': cannot load such file -- (\S+) \(LoadError\)}
	) {
		my $mod = $1;
		warn "Looking for ruby module $mod\n";
		poldek_file(
			"/usr/share/ruby/*/$mod.rb",
			"/usr/share/ruby/vendor_ruby/*/$mod.rb",
			"/usr/lib64/ruby/vendor_ruby/*/$mod.so",
		);
	}

	if ( /configure(?:\.in|\.ac)?:\d+: error: possibly undefined macro: (\S+)/
			or m{configure(?:\.in|\.ac)?:\d+: error: m4 macro `(\S+)' is not defined}
			or m{warning: macro `(\S+)' not found in library} ) {
		my $macro = $1;
		warn "Looking for autotools macro $macro\n";
		if ( my $br = $ac2br{ $macro } ) {
			add_br( $br );
			next;
		} else {
			$check_ac = 1;
		}
	}
	if ( /^No package '(\S+)' found$/ or
			/Package (\S+) was not found in the pkg-config search path/
				or m{None of the required '(\S+?)(?:[<>=].*)?' found}
				or m{--\s+package '(\S+?)(?:[<>=].*)?' not found}
				or m{ERROR: cannot find a valid pkg-config package for \['(\S+?)(?:[<>=].*)?'\]}
		) {
		my $pkg = $1;
		warn "Looking for package $pkg\n";
		poldek_file( "/usr/lib*/pkgconfig/$pkg.pc", "/usr/share/pkgconfig/$pkg.pc" );
	}

	if (/^ocamlfind: Package `(\S+)' not found - required by/
		or m{Camlp4: Uncaught exception: DynLoader.Error \("(\S+)", "file not found in path"\)}
		) {
		my $pkg = $1;
		warn "Looking for ocaml package $pkg\n";
		poldek_file( "/usr/lib*/ocaml/*/$pkg.a", "/usr/lib*/ocaml/*/$pkg");
	}

	if ( m{^cp: cannot stat `(/.*)': No such file or directory$} ) {
		my $f = $1;
		warn "Looking for file $f\n";
		poldek_file( $f );
	}

	if ( m{ERROR: Could not find KDE4 (kde4-config)}) {
		my $f = "/usr/bin/$1";
		warn "Looking for file $f\n";
		poldek_file( $f );
	}

	if (m{Ragel State Machine Compiler not found}) {
		add_br( "ragel" );
		next;
	}

	if (m{ERROR: CMake is required to build}) {
		add_br("cmake");
		next;
	}

	# lucky guessing
	if (m{'yum install (\S+)'}) {
		add_br($1);
		next;
	}

	if ( m{^find-lang.sh: Error: international files not found for '}
			or m{ gettext tools not found}
			) {
		add_br( "gettext-tools" );
		next;
	}

	if ( m{ pkg-config .*not .*found}
		or m{^checking for pkg-config\.\.\. no}
		or m{^pkg-config unavailable, build terminated}
		or m{^\*\*\*Error\*\*\*: You must have pkg-config >= .* installed}
		or m{^-- Could NOT find PkgConfig \(missing:  PKG_CONFIG_EXECUTABLE\)}
		or m{exec: "pkg-config": executable file not found in \$PATH}
	) {
		add_br( "pkgconfig" );
		next;
	}

	if ( m{Can't locate (.*?\.pm) in \@INC} ) {
		my $mod = $1;
		warn "Looking for perl module $mod\n";
		poldek_file( "/usr/lib*/perl*/$mod", "/usr/share/perl*/$mod" );
	}

	if (
		m{^(?:/usr/bin/ld: )?cannot find -l(.*?)$}
	) {
		my $lib = $1;
		warn "Looking for library $lib\n";
		poldek_file( "/usr/lib64/lib$lib.so", "/usr/lib/lib$lib.so",
			"/usr/lib*/lib$lib.so" );
	}

	# full path to ldd files
	if (
		m{^WARNING; can.*t resolve .* dependency: (.*?)$}
	) {
		my $lib = $1;
		warn "Looking for library '$lib'\n";
		poldek_file( "/usr/lib64/$lib", "/usr/lib/$lib", "/lib64/$lib", "/lib/$lib");
	}

	if ( m{^error: Couldn't exec (/\S+): No such file or directory$}
			or m{^Can't open perl script "(/\S+)": No such file or directory$}
			or m{unable to open (/\S+) \(No such file or directory\)$}
			or m{GConf-CRITICAL \*\*: No such file `(/.\S+?)'$}
			or m{make.*: \*\*\* No rule to make target `(/\S+)'}
			or m{g(?:cc|\+\+): (/\S+): No such file or directory$}
			or m{env: (/\S+): No such file or directory$}
			) {
		my $file = $1;
		warn "Looking for file $file\n";
		poldek_file( $file );
	}

	if ( m{^ValueError: Couldn't find include '(.*\.gir)'} ) {
		my $file = $1;
		warn "Looking for gir file $file\n";
		poldek_file( "/usr/share/gir-1.0/" . $file );
	}

	if ( m{^error: Package `(\S+)' not found in specified Vala API directories or GObject-Introspection GIR directories}
	) {
		my $file = $1;
		warn "Looking for gir file $file\n";
		poldek_file( "/usr/share/vala/vapi/$file.vapi");
	}

	if ( m{failed.*http://www\.oasis-open\.org/docbook/xml/([\d\.]+/\S+\.dtd)} ) {
		my $dtd = $1;
		warn "Looking for docbook file $dtd\n";
		poldek_file( "/usr/share/sgml/docbook/xml-dtd-$dtd" );
	}
	if ( m{http://docbook.sourceforge.net/release/xsl/current/(\S+\.xsl)} ) {
		my $db = $1;
		next if m{^\s*(/usr/bin/)?xsltproc };
		warn "Looking for docbook file $db\n";
		poldek_file( "/usr/share/sgml/*/$db" );
	}
	if (m{Could not find HTML docbook.xsl}) {
		add_br("docbook-style-xsl");
	}

	if ( m{LaTeX Error: File `(\S+)' not found} ) {
		my $tex = $1;
		warn "Looking for tex file $tex\n";
		poldek_file( "/usr/share/tex*/$tex" );
	}
	if ( m{mv: cannot move `\S+' to `(/var/lib/texmf.*?)':} ) {
		my $tex = $1;
		warn "Looking for tex file $tex\n";
		poldek_file( $tex );
	}

	if ( m{configure: error: C\+\+ preprocessor "/lib/cpp" fails sanity check} ) {
		add_br( "gcc-c++", "try: %undefine\t__cxx" );
	}
	if ( m{configure: error: C\+\+ compiler cannot create executables} ) {
		add_br( "libstdc++-devel", "maybe try: %undefine\t__cxx" );
	}
	if ( m{ccache: error: Could not find compiler ".+-g\+\+" in PATH}) {
		add_br("libstdc++-devel");
	}
	if ( m{configure: error: XML::Parser perl module is required for intltool} ) {
		add_br( "perl-XML-Parser" );
	}
	if ( m{iconv: conversion from `\S+' is not supported} ) {
		add_br( "iconv" );
	}

	if (m{rst2man \(python-docutils\) is required to build man pages}) {
		add_br("docutils");
	}

	if ( m{ (\S+) does not appear in AM_CONDITIONAL$} ) {
		my $macro = $1;
		warn "Looking for autotools macro $macro\n";
		if ( my $br = $ac2br{ $macro } ) {
			add_br( $br );
			next;
		} else {
			$check_ac = 1;
		}
	}

	if ( m{configure\[\d+\]: syntax error: }
			or m{\./configure\[\d+\]: \S+_\S+: not found}
			or m{./configure\[\d+\]: .*unexpected}
			or m{does not appear in AM_CONDITIONAL$}
			) {
		warn "Need to check configure source: $reason\n";
		$check_ac = 1;
	}
	if ( m{^configure: error:} ) {
		$check_config_log = 1 unless defined $check_config_log;
	}

	if ( m{Check the mkmf.log file for more details} ) {
		$check_mkmf_log = 1 unless defined $check_mkmf_log;
	}

	if ( m{^CMake (?:Error|Warning) at (?:\S+/)?(\S+?)\.cmake:(\d+) } ) {
		my ( $module, $line ) = ( lc $1, $2 );
		my $br;
		if ( $module eq "findqt4" ) {
			my $l = $lines[0];
			chomp $l;
			if ( $l =~ /qmake/ ) {
				add_br( "qt4-qmake", $l );
			} elsif ( $l =~ /rcc/ ) {
				add_br( "qt4-build", $l );
			} elsif ( $l =~ /Could NOT find (Qt\S+) header/ ) {
				add_br( "$1-devel", $l );
			} else {
				warn "unrecognized Qt requirement: $l\n";
			}
		} elsif ( $module eq "qt5coreconfig" ) {
			my $l = $lines[2];
			chomp $l;
			if ( $l =~ /qmake/ ) {
				add_br( "qt5-qmake", $l );
			} elsif ( $l =~ /moc/) {
				add_br( "qt5-build", $l );
			} else {
				warn "Unrecognized Qt requirement: $l\n";
			}
		} elsif ( $module eq "cmakedeterminecxxcompiler" ) {
			add_br( "libstdc++-devel",
				'"try: -DCMAKE_CXX_COMPILER_WORKS=1 -DCMAKE_CXX_COMPILER="%{__cc}"' );
		} elsif ( $br = $cmake2br{ $module . ":" . $line } ) {
			add_br( $br );
		} elsif ( $br = $cmake2br{ $module } ) {
			add_br( $br );
		} elsif ( $br = guess_package( $module =~ /find(.+)/ ) ) {
			add_br( $br );
		} else {
			$cmake_get_call = 1;
			warn "Unrecognized cmake error: $reason\n";
		}
	}

	if ( m{^CMake Error at (?:\S+/)?(\S+?):(\d+) \(find_package\):} ) {
		my ($file, $line) = (lc $1, $2);

		#CMake Error at CMakeLists.txt:29 (find_package):
		#  Could not find a package configuration file provided by "LLVM" with any of the following names:
		#
		#    LLVMConfig.cmake
		#    llvm-config.cmake
		my @files = grep { /\.cmake$/ } @lines;
		my @find = map { chomp; s/^\s+//; "/usr/*/cmake/*/$_" } @files;
		poldek_file(@find);
	}

	if ( m{^\s*ERROR: (?:\S+/)?(\S+?\.cmake) not found} ) {
		my $cmake = $1;
		warn "Looking for cmake file: $cmake\n";
		poldek_file( "/usr/*/cmake/*/$cmake" )
	}
	if ( $cmake_get_call ) {
		if ( m{^\s*/\S+/(\S+)\.cmake:(\d+) } ) {
			my ( $module, $line ) = ( lc $1, $2 );
			my $br;
			if ( $br = $cmake2br{ $module . ":" . $line } ) {
				add_br( $br );
				$cmake_get_call = 0;
			} elsif ( $br = $cmake2br{ $module } ) {
				add_br( $br );
				$cmake_get_call = 0;
			} elsif ( $br = guess_package( $module =~ /find(.+)/ ) ) {
				add_br( $br );
				$cmake_get_call = 0;
			}
		} elsif (m{Can not use "(.+)" module which has not yet been found}
			or m{Could not find a package configuration file provided by "(.+)"}) {
			my $cmake = $1;

			warn "Looking for cmake file: $cmake\n";
			poldek_file(
				"/usr/*/cmake/*/$cmake.cmake",
				"/usr/*/cmake/*/${cmake}Config.cmake",
				"/usr/*/cmake/*/${cmake}-config.cmake",
			);
			$cmake_get_call = 0;
		}
	}
	if ( m{^-- WARNING: you are using the obsolete 'PKGCONFIG' macro} ) {
		add_br( "pkgconfig" );
	}
	if ( m{QT_(QT\S+)_LIBRARY \(ADVANCED\)}
			or m{X11_(\S+)_LIB \(ADVANCED\)}
			or m{Qt (\S+) library not found} ) {
		my $find = $1;
		my $pkg = guess_package( $find );
		if ( $pkg ) {
			add_br( $pkg );
		} else {
			warn "Cannot quess qt package: $find\n";
		}
	}

	if ( m{Unable to find a javac compiler;$} ) {
		add_br( "jdk" );
	}
	if ( m{Could not find (\S+) Java extension for this JVM$} ) {
		my $jar = $1;
		warn "Looking for jar file: $jar\n";
		poldek_file( "/usr/share/java/$jar.jar", "*/$jar.jar" )
	}


	if ( m{^-- The following OPTIONAL packages could NOT be located on your system} ) {
		$cmake_pkg_list = 1;
	}
	if ( $cmake_pkg_list ) {
		if ( /\s+\* (\S+) / ) {
			my $find = $1;
			my $pkg = guess_package( $find );
			if ( $pkg ) {
				add_br( $pkg );
			} else {
				warn "Cannot quess optional package: $find\n";
			}
		} elsif ( /^\s*$/ ) {
			$cmake_pkg_list = 0;
		}
	}

	if (m{By not providing "Find(.+)\.cmake" in CMAKE_MODULE_PATH}
		or m{Could not find a package configuration file provided by "(.+)"
		}) {
		my $cmake = $1;
		my $lcmake = lc $cmake;

		warn "Looking for cmake file: $cmake\n";
		poldek_file(
			"/usr/*/cmake/*/$cmake.cmake",
			"/usr/*/cmake/*/${cmake}Config.cmake",
			"/usr/*/cmake/*/${cmake}-config.cmake",
			"/usr/*/cmake/*/${lcmake}Config.cmake",
			"/usr/*/cmake/*/${lcmake}-config.cmake",
		)
	}

	if ( m{^configure:\d+: checking for (?:"(\S+)"|(\S+))$} ) {
		my $exec = $1 || $2;
		if ( @lines and $lines[0] =~ m{^configure:\d+: result: no$} ) {
			next if $skip{ $exec };
			warn "Looking for executable $exec\n";
			poldek_file( $exec ) if $exec =~ m#^/#;
			poldek_file( "/usr/bin/$exec", "/bin/$exec" );
		}
	}


	if (
		m{Could not find (\S+)}
	) {
		my $exec = $1;
		poldek_file("/usr/bin/$exec", "/bin/$exec" );
	}
}



sub find_configure
{
	return unless /^configure(\.(?:ac|in|in\.in))?$/;
	return unless -r;

	warn "$File::Find::name\n";
	open F_IN, "<", $_;
	my $file = $_;
	while ( <F_IN> ) {
		chomp;
		if ( m{^\s*([A-Za-z0-9_]+)\s*(\(.*)?$} ) {
			my $def = $1;
			if ( my $br = $ac2br{ $def } ) {
				add_br( $br, "$file: $_" );
			} elsif ( $def !~ /^A[CM]_/ and $def =~ /^_?[A-Z]+_[A-Z_0-9a-z]+$/ ) {
				#warn "Possible macro unrecognized: $def [[[$_]]]\n";
			}
		}
	}
	close F_IN;
}

use File::Find;
if ( $check_ac ) {
	find( \&find_configure, $builddir );
}

sub find_config_log
{
	return unless /^config\.log$/;
	return unless -r;

	warn "$File::Find::name\n";
	open F_IN, "<", $_;
	push @lines, <F_IN>;
	close F_IN;
}

if ( $check_config_log ) {
	$check_config_log = 0;
	find( \&find_config_log, $builddir );
	goto start_check if @lines;
}

if ($check_mkmf_log) {
	$check_mkmf_log = 0;
	find(sub {
		return unless /^mkmf\.log$/;
		return unless -r;

		warn "$File::Find::name\n";
		open F_IN, "<", $_;
		push @lines, <F_IN>;
		close F_IN;
	}, $builddir);
	goto start_check if @lines;
}

foreach my $pkg ( sort keys %out ) {
	print "$pkg -- $out{$pkg}\n";
}
# vim: ts=4 sw=4