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config_sh.PL
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config_sh.PL
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#!perl -w
use strict;
use FindExt;
# take a semicolon separated path list and turn it into a quoted
# list of paths that Text::Parsewords will grok
sub mungepath {
my $p = shift;
# remove leading/trailing semis/spaces
$p =~ s/^[ ;]+//;
$p =~ s/[ ;]+$//;
$p =~ s/'/"/g;
my @p = map { $_ = "\"$_\"" if /\s/ and !/^".*"$/; $_ } split /;/, $p;
return wantarray ? @p : join(' ', @p);
}
# check that the directories in the provided var exist
sub check_path {
my $opt = shift;
my $p = shift;
my @paths = mungepath($p);
my $header_seen = 0;
foreach my $path (@paths) {
$path =~ s/^"(.*)"$/$1/;
next, if -d $path;
if (not $header_seen++) {
print STDERR "'$opt' contains the following non-existing paths:\n";
}
print STDERR "\t$path\n";
}
if ($header_seen) {
print STDERR <<EOF;
Did you provide a correct value for the 'CCHOME' option?
(This check can be skipped by using the SKIP_CCHOME_CHECK=1 option)
EOF
exit 1;
}
}
# generate an array of option strings from command-line args
# or an option file
# -- added by BKS, 10-17-1999 to fix command-line overflow problems
sub loadopts {
if ($ARGV[0] =~ /--cfgsh-option-file/) {
shift @ARGV;
my $optfile = shift @ARGV;
local (*OPTF);
open OPTF, '<', $optfile or die "Can't open $optfile: $!\n";
my @opts;
chomp(my $line = <OPTF>);
my @vars = split(/\t+~\t+/, $line);
for (@vars) {
push(@opts, $_) unless (/^\s*$/);
}
close OPTF;
return \@opts;
}
else {
return \@ARGV;
}
}
sub replace_template {
my ($template, %opt) = @_;
open my $fh, "<", $template
or die "$0: Cannot open $template: $!\n";
my $result = '';
local $_;
while (<$fh>) {
s/~([\w_]+)~/exists $opt{$1} ? $opt{$1} : ''/eg;
if (/^([\w_]+)=(.*)$/) {
my($k,$v) = ($1,$2);
# this depends on cf_time being empty in the template (or we'll
# get a loop)
if (exists $opt{$k}) {
$_ = "$k='$opt{$k}'\n";
}
}
$result .= $_;
}
close $fh;
$result;
}
my $out = '-';
if (@ARGV >= 2 && $ARGV[0] eq '-o') {
shift;
$out = shift;
}
my $prebuilt; # are we making the prebuilt config used to bootstrap?
if (@ARGV && $ARGV[0] eq '--prebuilt') {
++$prebuilt;
shift;
}
my %opt;
my $optref = loadopts();
while (@{$optref} && $optref->[0] =~ /^([\w_]+)=(.*)$/) {
$opt{$1}=$2;
shift(@{$optref});
}
FindExt::scan_ext("../cpan");
FindExt::scan_ext("../dist");
FindExt::scan_ext("../ext");
FindExt::set_static_extensions(split ' ', $opt{static_ext});
$opt{nonxs_ext} = join(' ',FindExt::nonxs_ext()) || ' ';
$opt{static_ext} = join(' ',FindExt::static_ext()) || ' ';
$opt{dynamic_ext} = join(' ',FindExt::dynamic_ext()) || ' ';
$opt{extensions} = join(' ',FindExt::extensions()) || ' ';
$opt{known_extensions} = join(' ',FindExt::known_extensions()) || ' ';
my $pl_h = '../patchlevel.h';
if (-e $pl_h) {
open PL, "<", $pl_h or die "Can't open $pl_h: $!";
while (<PL>) {
if (/^#\s*define\s+(PERL_\w+)\s+([\d.]+)/) {
$opt{$1} = $2;
}
}
close PL;
}
else {
die "Can't find $pl_h: $!";
}
my $patch_file = '../.patch';
if (-e $patch_file) {
open my $fh, "<", $patch_file or die "Can't open $patch_file: $!";
chomp($opt{PERL_PATCHLEVEL} = <$fh>);
close $fh;
}
$opt{version} = "$opt{PERL_REVISION}.$opt{PERL_VERSION}.$opt{PERL_SUBVERSION}";
$opt{version_patchlevel_string} = "version $opt{PERL_VERSION} subversion $opt{PERL_SUBVERSION}";
$opt{version_patchlevel_string} .= " patch $opt{PERL_PATCHLEVEL}" if exists $opt{PERL_PATCHLEVEL};
my $ver = `ver 2>nul`;
$opt{osvers} = $ver =~ /\b(\d+(?:\.\d+)+)\b/ ? $1 : '4.0';
if (exists $opt{cc}) {
# cl version detection borrowed from Test::Smoke's configsmoke.pl
if ($opt{cc} =~ /\b(?:cl|icl)/) { #MSVC can come as clarm.exe, icl=Intel C
my $output = `$opt{cc} 2>&1`;
$opt{ccversion} = $output =~ /\b(\d+(?:\.\d+)+)\b/ ? $1 : '?';
}
elsif ($opt{cc} =~ /\bgcc\b/) {
chomp($opt{gccversion} = `$opt{cc} -dumpversion`);
chomp($opt{libc} = `$opt{cc} -o rt.exe configure/rt.c 1>nul 2>&1 && rt`);
if(-e 'rt.exe') { unlink 'rt.exe' } # rt.exe no longer needed
else { die "Failed to identify default runtime" }
}
}
$opt{cf_by} = $ENV{USERNAME} unless $opt{cf_by};
if (!$opt{cf_email}) {
my $computername = eval{(gethostbyname('localhost'))[0]};
# gethostbyname might not be implemented in miniperl
$computername = $ENV{COMPUTERNAME} if $@;
$opt{cf_email} = $opt{cf_by} . '@' . $computername;
}
$opt{usemymalloc} = 'y' if $opt{d_mymalloc} eq 'define';
unless ($opt{SKIP_CCHOME_CHECK}) {
check_path('CCLIBDIR', $opt{libpth});
check_path('CCINCDIR', $opt{incpath});
}
$opt{libpth} = mungepath($opt{libpth}) if exists $opt{libpth};
$opt{incpath} = mungepath($opt{incpath}) if exists $opt{incpath};
my $int64;
if ($opt{cc} =~ /\b(?:cl|icl)/) {
$int64 = '__int64';
}
elsif ($opt{cc} =~ /\bgcc\b/) {
$int64 = 'long long';
}
# set 64-bit options
if ($opt{WIN64} eq 'define') {
$opt{d_atoll} = 'define';
$opt{d_strtoll} = 'define';
$opt{d_strtoull} = 'define';
$opt{ptrsize} = 8;
$opt{sizesize} = 8;
$opt{ssizetype} = $int64;
$opt{st_ino_size} = 8;
}
else {
$opt{d_atoll} = 'undef';
$opt{d_strtoll} = 'undef';
$opt{d_strtoull} = 'undef';
$opt{ptrsize} = 4;
$opt{sizesize} = 4;
$opt{ssizetype} = 'int';
$opt{st_ino_size} = 4;
}
# set 64-bit-int options
if ($opt{use64bitint} eq 'define') {
if ($opt{uselongdouble} eq 'define' || $opt{usequadmath} eq 'define') {
$opt{d_nv_preserves_uv} = 'define';
$opt{nv_preserves_uv_bits} = 64;
}
else {
$opt{d_nv_preserves_uv} = 'undef';
$opt{nv_preserves_uv_bits} = 53;
}
$opt{ivdformat} = qq{"I64d"};
$opt{ivsize} = 8;
$opt{ivtype} = $int64;
$opt{sPRIXU64} = qq{"I64X"};
$opt{sPRId64} = qq{"I64d"};
$opt{sPRIi64} = qq{"I64i"};
$opt{sPRIo64} = qq{"I64o"};
$opt{sPRIu64} = qq{"I64u"};
$opt{sPRIx64} = qq{"I64x"};
$opt{uvXUformat} = qq{"I64X"};
$opt{uvoformat} = qq{"I64o"};
$opt{uvsize} = 8;
$opt{uvtype} = qq{unsigned $int64};
$opt{uvuformat} = qq{"I64u"};
$opt{uvxformat} = qq{"I64x"};
}
else {
$opt{d_nv_preserves_uv} = 'define';
$opt{ivdformat} = '"ld"';
$opt{ivsize} = 4;
$opt{ivtype} = 'long';
$opt{nv_preserves_uv_bits} = 32;
$opt{sPRIXU64} = '"lX"';
$opt{sPRId64} = '"ld"';
$opt{sPRIi64} = '"li"';
$opt{sPRIo64} = '"lo"';
$opt{sPRIu64} = '"lu"';
$opt{sPRIx64} = '"lx"';
$opt{uvXUformat} = '"lX"';
$opt{uvoformat} = '"lo"';
$opt{uvsize} = 4;
$opt{uvtype} = 'unsigned long';
$opt{uvuformat} = '"lu"';
$opt{uvxformat} = '"lx"';
}
unless ($opt{cc} =~ /\bcl/) {
if ($opt{WIN64} eq 'define') {
$opt{longdblsize} = 16;
$opt{longdblinfbytes} = '0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00';
$opt{longdblnanbytes} = '0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00';
}
else {
$opt{longdblsize} = 12;
$opt{longdblinfbytes} = '0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xff, 0x7f, 0x00, 0x00';
$opt{longdblnanbytes} = '0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xff, 0xff, 0x00, 0x00';
}
}
# set long double options
if ($opt{uselongdouble} eq 'define') {
$opt{d_Gconvert} = 'sprintf((b),"%.*""Lg",(n),(x))';
$opt{d_PRIEUldbl} = 'define';
$opt{d_PRIFUldbl} = 'define';
$opt{d_PRIGUldbl} = 'define';
$opt{d_modflproto} = 'define';
$opt{d_strtold} = 'define';
$opt{d_PRIeldbl} = 'define';
$opt{d_PRIfldbl} = 'define';
$opt{d_PRIgldbl} = 'define';
$opt{d_SCNfldbl} = 'define';
$opt{nvsize} = $opt{longdblsize};
$opt{nvtype} = 'long double';
$opt{nv_overflows_integers_at} = '256.0*256.0*256.0*256.0*256.0*256.0*256.0*2.0*2.0*2.0*2.0*2.0*2.0*2.0*2.0';
$opt{nvEUformat} = '"LE"';
$opt{nvFUformat} = '"LF"';
$opt{nvGUformat} = '"LG"';
$opt{nveformat} = '"Le"';
$opt{nvfformat} = '"Lf"';
$opt{nvgformat} = '"Lg"';
$opt{nvmantbits} = 64;
$opt{longdblkind} = 3;
$opt{longdblmantbits} = 64;
}
# set __float128 options
elsif ($opt{usequadmath} eq 'define') {
$opt{d_Gconvert} = 'sprintf((b),"%.*""Lg",(n),(x))';
$opt{d_PRIEUldbl} = 'define';
$opt{d_PRIFUldbl} = 'define';
$opt{d_PRIGUldbl} = 'define';
$opt{d_modflproto} = 'define';
$opt{d_strtold} = 'define';
$opt{d_PRIeldbl} = 'define';
$opt{d_PRIfldbl} = 'define';
$opt{d_PRIgldbl} = 'define';
$opt{d_SCNfldbl} = 'define';
$opt{nv_overflows_integers_at} = '256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*256.0*2.0';
$opt{nvsize} = 16;
$opt{nvtype} = '__float128';
$opt{nvEUformat} = '"QE"';
$opt{nvFUformat} = '"QF"';
$opt{nvGUformat} = '"QG"';
$opt{nveformat} = '"Qe"';
$opt{nvfformat} = '"Qf"';
$opt{nvgformat} = '"Qg"';
$opt{nvmantbits} = 112;
$opt{longdblkind} = 3;
$opt{longdblmantbits} = 64;
$opt{i_quadmath} = 'define';
}
else {
$opt{d_Gconvert} = 'sprintf((b),"%.*g",(n),(x))';
$opt{d_PRIEUldbl} = 'undef';
$opt{d_PRIFUldbl} = 'undef';
$opt{d_PRIGUldbl} = 'undef';
if($opt{cc} =~ /\b(?:cl|icl)/) {
$opt{d_modflproto} = 'undef';
}
else {
$opt{d_modflproto} = 'define';
}
$opt{d_strtold} = 'undef';
$opt{d_PRIeldbl} = 'undef';
$opt{d_PRIfldbl} = 'undef';
$opt{d_PRIgldbl} = 'undef';
$opt{d_SCNfldbl} = 'undef';
$opt{nvsize} = 8;
$opt{nvtype} = 'double';
$opt{nv_overflows_integers_at} = '256.0*256.0*256.0*256.0*256.0*256.0*2.0*2.0*2.0*2.0*2.0';
$opt{nvEUformat} = '"E"';
$opt{nvFUformat} = '"F"';
$opt{nvGUformat} = '"G"';
$opt{nveformat} = '"e"';
$opt{nvfformat} = '"f"';
$opt{nvgformat} = '"g"';
}
# change some configuration variables based on compiler version
if ($opt{cc} =~ /\bcl/ and $opt{ccversion} =~ /^(\d+)/) {
my $ccversion = $1;
if ($ccversion >= 14) { # VC8+
$opt{sGMTIME_max} = 32535291599;
$opt{sLOCALTIME_max} = 32535244799;
}
if ($ccversion >= 16 && !$prebuilt) { # VC10+
$opt{i_stdint} = 'define';
}
if ($ccversion >= 19) { # VC14+
$opt{i_stdbool} = 'define' unless $prebuilt;
}
}
# find out which MSVC this ICC is using
elsif ($opt{cc} =~ /\bicl/) {
my $output = `cl 2>&1`;
my $num_ver = $output =~ /\b(\d+(?:\.\d+)+)\b/ ? $1 : '?';
if ($num_ver =~ /^(\d+)/ && $1 >= 14) { # VC8+
$opt{sGMTIME_max} = 32535291599;
$opt{sLOCALTIME_max} = 32535244799;
}
if ($num_ver =~ /^(\d+)/ && $1 >= 16) { # VC10+
$opt{i_stdint} = 'define';
}
if ($num_ver =~ /^(\d+)/ && $1 >= 19) { # VC14+
$opt{i_stdbool} = 'define';
}
$opt{ar} ='xilib';
}
# win32.h always defines these, and those definitions
# depend on the current CRT
$opt{stdio_base} = 'PERLIO_FILE_base(fp)';
$opt{stdio_bufsiz} = '(PERLIO_FILE_cnt(fp) + PERLIO_FILE_ptr(fp) - PERLIO_FILE_base(fp))';
$opt{stdio_cnt} = 'PERLIO_FILE_cnt(fp)';
$opt{stdio_ptr} = 'PERLIO_FILE_ptr(fp)';
if ($opt{useithreads} eq 'define' && $opt{ccflags} =~ /-DPERL_IMPLICIT_SYS\b/) {
$opt{d_pseudofork} = 'define';
}
if ($opt{usecplusplus} eq 'define') {
$opt{d_cplusplus} = 'define';
$opt{extern_C} = 'extern "C"';
}
#if the fields above are defined, they override the defaults in the premade
#config file
my $template = shift
or die "$0: No template supplied\n";
if ($out ne '-') {
# preserve cf_time to avoid generating a new config.sh with no changes
my $cf_time;
if (open my $fh, "<", $out) {
my $old = '';
# scan for cf_time while reading in the whole file
while (<$fh>) {
$old .= $_;
if (/^cf_time='(.*)'/) {
$cf_time = $1;
}
}
close $fh;
my $replaced = replace_template($template, %opt, cf_time => $cf_time);
if ($replaced eq $old) {
# no configuration change, skip updating
print "$0: No changes for $out\n";
exit;
}
}
open my $fh, ">", $out
or die "$0: Cannot create $out: $!\n";
print $fh replace_template($template, %opt, cf_time => scalar localtime);
close $fh
or die "$0: Failed to close $template: $!\n";
}
else {
print replace_template($template, %opt, cf_time => scalar localtime);
}