From e2383485cdbfbc3cc0ccf2e1278b7fa89c6bafa9 Mon Sep 17 00:00:00 2001
From: Wilfried Goesgens <willi@arangodb.com>
Date: Thu, 13 Oct 2016 15:23:23 +0200
Subject: [PATCH] try to locate brew installations of openssl

---
 CMakeLists.txt          |  1 +
 cmake/FindOpenSSL.cmake | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6b09bdf5b6..9ab0599396 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -219,6 +219,7 @@ elseif (APPLE)
   elseif (CMAKE_SYSTEM_NAME MATCHES ".*MacOS.*")
     set(MACOSX TRUE)
   endif ()
+  find_program(BREW brew)
 endif ()
 
 ################################################################################
diff --git a/cmake/FindOpenSSL.cmake b/cmake/FindOpenSSL.cmake
index 01586506b7..58518b8f75 100644
--- a/cmake/FindOpenSSL.cmake
+++ b/cmake/FindOpenSSL.cmake
@@ -54,6 +54,16 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+if (APPLE AND BREW AND NOT OPENSSL_ROOT_DIR)
+  message("searching openssl with brew (${BREW})")
+  # if we have a brew openssl, prefer it over the elderly system one.
+  execute_process(OUTPUT_VARIABLE BREW_ROOT
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    COMMAND ${BREW} --prefix)
+  set(OPENSSL_ROOT_DIR "${BREW_ROOT}/opt/openssl")
+  message("auto-set OPENSSL_ROOT_DIR to: ${OPENSSL_ROOT_DIR}")
+endif ()
+
 if (UNIX)
   find_package(PkgConfig QUIET)
   pkg_check_modules(_OPENSSL openssl)