From fb6a375b75de221e5023346b6b40b4b16131617d Mon Sep 17 00:00:00 2001
From: anonimal <anonimal@i2pmail.org>
Date: Thu, 6 Oct 2016 19:44:46 +0000
Subject: [PATCH] OSX: update OpenSSL detection. Closes #690

- Cherry-pick's acb020b 0.13-release
- References #691
---
 CMakeLists.txt | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 937a29eed..e5f3c68f1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,23 @@ set(Boost_USE_MULTI_THREADED ON)
 find_package(Boost 1.58.0 REQUIRED COMPONENTS system)
 
 if (CPP-NETLIB_ENABLE_HTTPS)
-  find_package( OpenSSL )
+  if (APPLE)
+    # If we're on OSX check for Homebrew's copy of OpenSSL instead of Apple's
+    if (NOT OpenSSL_DIR)
+      find_program(HOMEBREW brew)
+      if (HOMEBREW STREQUAL "HOMEBREW-NOTFOUND")
+        message(WARNING "Homebrew not found: not using Homebrew's OpenSSL")
+        if (NOT OPENSSL_ROOT_DIR)
+          message(WARNING "Use -DOPENSSL_ROOT_DIR for non-Apple OpenSSL")
+        endif()
+      else()
+        execute_process(COMMAND brew --prefix openssl
+          OUTPUT_VARIABLE OPENSSL_ROOT_DIR
+          OUTPUT_STRIP_TRAILING_WHITESPACE)
+      endif()
+    endif()
+  endif()
+  find_package(OpenSSL)
 endif()
 
 find_package( Threads )