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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)
This commit is contained in:
Richard Levitte 2018-01-09 19:51:19 +01:00
parent 8e403a79b0
commit 225f980d22
2 changed files with 16 additions and 1 deletions
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6
Configurations/README
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@ -18,10 +18,14 @@ configuration in diverse ways:
Configurations of OpenSSL target platforms
==========================================
Target configurations are a collection of facts that we know about
Configuration targets are a collection of facts that we know about
different platforms and their capabilities. We organise them in a
hash table, where each entry represent a specific target.
Note that configuration target names must be unique across all config
files. The Configure script does check that a config file doesn't
have config targets that shadow config targets from other files.
In each table entry, the following keys are significant:
inherit_from => Other targets to inherit values from.

11
Configure
View File

@ -2381,6 +2381,17 @@ sub read_config {
%targets = read_eval_file($fname);
}
my %preexisting = ();
foreach (sort keys %targets) {
$preexisting{$_} = 1 if $table{$_};
}
die <<"EOF",
The following config targets from $fname
shadow pre-existing config targets with the same name:
EOF
map { " $_\n" } sort keys %preexisting
if %preexisting;
# For each target, check that it's configured with a hash table.
foreach (keys %targets) {