Building: make it possible to force linking with static OpenSSL libs

Very simply, support having the .a extension to denote depending on
static libraries.  Note that this is not supported on native Windows
when building shared libraries, as there is not static library then,
just an import library with the same name.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1889)

1 files changed, 11 insertions, 3 deletions

diff --git a/Configurations/common.tmpl b/Configurations/common.tmpl
index d811a2a144..5fd6b9729c 100644
--- a/Configurations/common.tmpl
+++ b/Configurations/common.tmpl
@@ -9,15 +9,22 @@
  # there are no duplicate dependencies and that they are in the
  # right order.  This is especially used to sort the list of
  # libraries that a build depends on.
+ sub extensionlesslib {
+     my @result = map { $_ =~ /(\.a)?$/; $` } @_;
+     return @result if wantarray;
+     return $result[0];
+ }
  sub resolvedepends {
      my $thing = shift;
+     my $extensionlessthing = extensionlesslib($thing);
      my @listsofar = @_;    # to check if we're looping
-     my @list = @{$unified_info{depends}->{$thing}};
+     my @list = @{$unified_info{depends}->{$extensionlessthing}};
      my @newlist = ();
      if (scalar @list) {
          foreach my $item (@list) {
+             my $extensionlessitem = extensionlesslib($item);
              # It's time to break off when the dependency list starts looping
-             next if grep { $_ eq $item } @listsofar;
+             next if grep { extensionlesslib($_) eq $extensionlessitem } @listsofar;
              push @newlist, $item, resolvedepends($item, @listsofar, $item);
          }
      }
@@ -28,8 +35,9 @@
      my @newlist = ();
      while (@list) {
          my $item = shift @list;
+         my $extensionlessitem = extensionlesslib($item);
          push @newlist, $item
-             unless grep { $item eq $_ } @list;
+             unless grep { $extensionlessitem eq extensionlesslib($_) } @list;
      }
      @newlist;
  }