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Configure: try to make sure every config target name is unique
Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/5047)
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@ -18,10 +18,14 @@ configuration in diverse ways:
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Configurations of OpenSSL target platforms
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==========================================
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Target configurations are a collection of facts that we know about
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Configuration targets are a collection of facts that we know about
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different platforms and their capabilities. We organise them in a
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hash table, where each entry represent a specific target.
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Note that configuration target names must be unique across all config
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files. The Configure script does check that a config file doesn't
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have config targets that shadow config targets from other files.
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In each table entry, the following keys are significant:
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inherit_from => Other targets to inherit values from.
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11
Configure
11
Configure
@ -2381,6 +2381,17 @@ sub read_config {
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%targets = read_eval_file($fname);
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}
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my %preexisting = ();
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foreach (sort keys %targets) {
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$preexisting{$_} = 1 if $table{$_};
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}
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die <<"EOF",
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The following config targets from $fname
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shadow pre-existing config targets with the same name:
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EOF
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map { " $_\n" } sort keys %preexisting
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if %preexisting;
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# For each target, check that it's configured with a hash table.
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foreach (keys %targets) {
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