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1 | #!/usr/bin/perl |
2 | |
3 | ############################################################################## |
4 | # |
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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. |
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9 | # |
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10 | # Author Redvers Davies <red@criticalintegration.com> |
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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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