ldns: add option to install with GOST support

By default, ldns is installed without support for the GOST family
of crypto algorithms, since that support requires a newer version
of OpenSSL than that included with OSX. This commit adds an
option to the recipe that turns on GOST support and adds a
dependency on Homebrew-provided OpenSSL.

Closes #25207.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 12 insertions, 3 deletions

diff --git a/Library/Formula/ldns.rb b/Library/Formula/ldns.rb
index e7504cb80..87da1ea17 100644
--- a/Library/Formula/ldns.rb
+++ b/Library/Formula/ldns.rb
@@ -5,18 +5,27 @@ class Ldns < Formula
   url 'http://nlnetlabs.nl/downloads/ldns/ldns-1.6.16.tar.gz'
   sha1 '5b4fc6c5c3078cd061905c47178478cb1015c62a'
 
+  option 'with-gost', 'Compile ldns with support for GOST algorithms in DNSSEC'
+
   depends_on :python => :optional
   depends_on 'swig' if build.with? 'python'
 
+  # gost requires OpenSSL >= 1.0.0
+  depends_on 'openssl' if build.with? 'gost'
+
   def install
-    # gost requires OpenSSL >= 1.0.0
     args = %W[
       --prefix=#{prefix}
-      --disable-gost
       --with-drill
-      --with-ssl=#{MacOS.sdk_path}/usr
     ]
 
+    if build.with? 'gost'
+      args << "--with-ssl=#{HOMEBREW_PREFIX}/opt/openssl"
+    else
+      args << "--disable-gost"
+      args << "--with-ssl=#{MacOS.sdk_path}/usr"
+    end
+
     if build.with? 'python'
       args << "--with-pyldns"
       ENV['PYTHON_SITE_PKG'] = python.site_packages