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6a809565 JH |
1 | #!/usr/bin/perl |
2 | ||
3 | ############################################################################## | |
4 | # | |
136febd5 JH |
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. | |
6a809565 | 9 | # |
136febd5 | 10 | # Author Redvers Davies <red@criticalintegration.com> |
6a809565 JH |
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 | } | |
121 | ||
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