Revert Xcode sdk version from 11.6 to 10.2

.travis.yml

@@ -22,9 +22,9 @@ addons:
     ]
 matrix:
   include:
-    - name: OpenMW (all) on MacOS 10.15 with Xcode 11.6
+    - name: OpenMW (all) on MacOS 10.15 with Xcode 10.2
       os: osx
-      osx_image: xcode11.6
+      osx_image: xcode10.2
     - name: OpenMW (all) on Ubuntu Focal with GCC
       os: linux
       dist: focal

AUTHORS.md

@@ -152,6 +152,7 @@ Programmers
     Nathan Jeffords (blunted2night)
     NeveHanter
     Nialsy
+    Nick Crawford (nighthawk469)
     Nikolay Kasyanov (corristo)
     nobrakal
     Nolan Poe (nopoe)

CI/before_script.osx.sh

@@ -17,6 +17,7 @@ cmake \
 -D CMAKE_C_FLAGS_RELEASE="-g -O0" \
 -D CMAKE_CXX_FLAGS_RELEASE="-g -O0" \
 -D CMAKE_OSX_DEPLOYMENT_TARGET="10.14" \
+-D CMAKE_OSX_SYSROOT="macosx10.14" \
 -D CMAKE_BUILD_TYPE=RELEASE \
 -D OPENMW_OSX_DEPLOYMENT=TRUE \
 -D BUILD_OPENMW=TRUE \