Add CMake target not using RCT2, use it for linux64 job

.travis.yml

@@ -48,7 +48,7 @@ matrix:
             - zip -r openrct2-osx.zip OpenRCT2.app
             - if [[ "z$OPENRCT2_ORG_TOKEN" != "z" && ("${TRAVIS_BRANCH}" =~ ^(develop|push/) || "z${TRAVIS_TAG}" != "z") ]] ; then curl -o - -v --form "key=$OPENRCT2_ORG_TOKEN" --form "fileName=OpenRCT2-${OPENRCT2_VERSION}-${TRAVIS_BRANCH}-${TRAVIS_COMMIT:0:7}-osx.zip" --form "version=${OPENRCT2_VERSION}" --form "gitHash=$TRAVIS_COMMIT" --form "gitBranch=$TRAVIS_BRANCH" --form "flavourId=3" --form "file=@openrct2-osx.zip" "https://openrct2.org/altapi/?command=push-build"; else curl --progress-bar --upload-file openrct2-osx.zip https://transfer.sh/openrct2-osx.zip -o link && cat link; fi
         - os: linux
-          env: OPENRCT2_CMAKE_OPTS="-DFORCE64=ON" TARGET=linux64
+          env: OPENRCT2_CMAKE_OPTS="-DFORCE64=ON -DDISABLE_RCT2=ON" TARGET=linux64
         # Following entries used to be included in testing, but they only proved useful while changing things in CMake setup.
         # They are meant to be used when there are changes to CMakeLists.txt
         # - os: linux

CMakeLists.txt

@@ -44,6 +44,7 @@ option(DISABLE_NETWORK "Disable multiplayer functionality. Mainly for testing.")
 option(STATIC "Create a static build.")
 option(FORCE64 "Force native (x86-64) build. Do not use, for experimental purposes only.")
 option(DISABLE_OPENGL "Disable OpenGL support.")
+option(DISABLE_RCT2 "WIP: Try building without using code and data segments from vanilla.")
 
 if (FORCE64)
 	set(TARGET_M "-m64")
@@ -74,6 +75,10 @@ else (DISABLE_NETWORK)
 	PKG_CHECK_MODULES(SSL REQUIRED openssl>=1.0.0)
 endif (DISABLE_NETWORK)
 
+if (DISABLE_RCT2)
+	add_definitions(-DNO_RCT2)
+endif (DISABLE_RCT2)
+
 # Start of library checks
 
 PKG_CHECK_MODULES(PNG libpng>=1.6)