| 1 | #!/usr/bin/perl |
| 2 | |
| 3 | ############################################################################## |
| 4 | # |
| 5 | # generate_config_sh |
| 6 | # Process that takes an automatically generated config.sh |
| 7 | # file and allows the environment to overload the values |
| 8 | # automatically discovered by Configure on our target platform. |
| 9 | # |
| 10 | # Author Redvers Davies <red@criticalintegration.com> |
| 11 | # |
| 12 | ############################################################################## |
| 13 | |
| 14 | my $config = shift; |
| 15 | |
| 16 | my $sys = $ENV{SYS}; |
| 17 | |
| 18 | my $callbacks = {}; |
| 19 | $callbacks->{'ar'} = [\&simple_process, ["AR", "arm-linux-ar"]]; |
| 20 | $callbacks->{'archname'} = [\&simple_process, ["SYS", "armv4l-linux"]]; |
| 21 | $callbacks->{'cc'} = [\&simple_process, ["CC", "arm-linux-gcc"]]; |
| 22 | $callbacks->{'cccdlflags'} = [\&simple_process, ["CFLAGS", ""]]; |
| 23 | $callbacks->{'ccdlflags'} = [\&simple_process, ["CFLAGS", ""]]; |
| 24 | $callbacks->{'ccflags'} = [\&simple_process, ["CFLAGS", "-fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"]]; |
| 25 | $callbacks->{'ccflags_uselargefiles'} = [\&simple_process, ["CFLAGS", "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"]]; |
| 26 | $callbacks->{'ccname'} = [\&simple_process, ["CC", "arm-linux-gcc"]]; |
| 27 | $callbacks->{'cpp'} = [\&simple_process, ["CCP", "arm-linux-cpp"]]; |
| 28 | $callbacks->{'cppflags'} = [\&simple_process, ["CCPFLAGS", "-fno-strict-aliasing"]]; |
| 29 | $callbacks->{'cpprun'} = [\&simple_process_append, ["CC", "arm-linux-gcc -E", "-E"]]; |
| 30 | $callbacks->{'cppstdin'} = [\&simple_process_append, ["CC", "arm-linux-gcc -E", "-E"]]; |
| 31 | $callbacks->{'full_ar'} = [\&backtick, ["AR", "which $ENV{AR}", "/usr/local/arm/2.95.3/bin/arm-linux-ar"]]; |
| 32 | $callbacks->{'ld'} = [\&simple_process, ["LD", "arm-linux-ld"]]; |
| 33 | $callbacks->{'ldflags'} = [\&simple_process, ["LDFLAGS", ""]]; |
| 34 | $callbacks->{'ldflags_uselargefiles'} = [\&simple_process, ["LDFLAGS", ""]]; |
| 35 | $callbacks->{'myarchname'} = [\&simple_process, ["SYS", "armv4l-linux"]]; |
| 36 | $callbacks->{'archlib'} = [\&library_munge, ["SYS", "armv4l-linux"]]; |
| 37 | $callbacks->{'archlibexp'} = [\&library_munge, ["SYS", "armv4l-linux"]]; |
| 38 | $callbacks->{'installarchlib'} = [\&library_munge, ["SYS", "armv4l-linux"]]; |
| 39 | $callbacks->{'installsitearch'} = [\&library_munge, ["SYS", "armv4l-linux"]]; |
| 40 | $callbacks->{'sitearch'} = [\&library_munge, ["SYS", "armv4l-linux"]]; |
| 41 | $callbacks->{'sitearchexp'} = [\&library_munge, ["SYS", "armv4l-linux"]]; |
| 42 | |
| 43 | if ($config eq "") { |
| 44 | die("Please run me as generate_config_sh path/to/original/config.sh"); |
| 45 | } |
| 46 | |
| 47 | open(FILE, "$config") || die("Unable to open $config"); |
| 48 | |
| 49 | my $line_in; |
| 50 | while ($line_in = <FILE>) { |
| 51 | if ($line_in =~ /^#/) { |
| 52 | next; |
| 53 | } |
| 54 | |
| 55 | if ($line_in !~ /./) { |
| 56 | next; |
| 57 | } |
| 58 | |
| 59 | $line_in =~ /^([^=]+)=(.*)/; |
| 60 | my $key = $1; |
| 61 | my $value = $2; |
| 62 | if (ref($callbacks->{$key}) eq "ARRAY") { |
| 63 | ($callbacks->{$key}[0])->($key,$value); |
| 64 | } else { |
| 65 | print($line_in); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | sub backtick { |
| 70 | my $key = shift; |
| 71 | my $value = shift; |
| 72 | my $envvar = $callbacks->{$key}->[1][0]; |
| 73 | |
| 74 | if ($ENV{$envvar}) { |
| 75 | my $rawtext = `$callbacks->{$key}->[1][1]`; |
| 76 | chomp($rawtext); |
| 77 | print("$key=\'$rawtext\'\n"); |
| 78 | } else { |
| 79 | print("$key=\'$callbacks->{$key}->[1][2]\'\n"); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | |
| 84 | sub simple_process { |
| 85 | my $key = shift; |
| 86 | my $envvar = $callbacks->{$key}->[1][0]; |
| 87 | |
| 88 | if ($ENV{$envvar}) { |
| 89 | print("$key=\"$ENV{$envvar}\"\n"); |
| 90 | } else { |
| 91 | print("$key=\'$callbacks->{$key}->[1][1]\'\n"); |
| 92 | } |
| 93 | |
| 94 | } |
| 95 | |
| 96 | sub simple_process_append { |
| 97 | my $key = shift; |
| 98 | my $envvar = $callbacks->{$key}->[1][0]; |
| 99 | |
| 100 | if ($ENV{$envvar}) { |
| 101 | print("$key=\"$ENV{$envvar} $callbacks->{$key}->[1][2]\"\n"); |
| 102 | } else { |
| 103 | print("$key=\'$callbacks->{$key}->[1][1]\'\n"); |
| 104 | } |
| 105 | |
| 106 | } |
| 107 | |
| 108 | sub library_munge { |
| 109 | my $key = shift; |
| 110 | my $value = shift; |
| 111 | my $envvar = $callbacks->{$key}->[1][0]; |
| 112 | |
| 113 | if ($ENV{$envvar}) { |
| 114 | $value =~ s/$callbacks->{$key}->[1][1]/$ENV{$envvar}/g; |
| 115 | print("$key=$value\n"); |
| 116 | } else { |
| 117 | print("$key=$value\n"); |
| 118 | } |
| 119 | |
| 120 | } |
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