Change OPENSSL_ROOT_DIR

.travis.yml

@@ -4,7 +4,7 @@ language: cpp
 before_install:
   - export CPPFLAGS="$CPPFLAGS -I/usr/local/opt/openssl/include"
   - export LDFLAGS="$LDFLAGS -L/usr/local/opt/openssl/lib"
-  - export OPENSSL_ROOT_DIR="/usr/local/opt/openssl"
+  - export OPENSSL_ROOT_DIR="/usr/local/opt"
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew outdated openssl || brew upgrade openssl; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew unlink protobuf; fi