force using cmake generator and set build folder manually

.gitlab-ci.yml

@@ -15,11 +15,10 @@ conan:
   stage: conan
   script:
     - mkdir -p build
-    - cd build
     - conan remote add bintray https://api.bintray.com/conan/lheili/LibConfig
     - conan user lukas-heiligenbrunner -r bintray -p $CONAN_KEY
     - conan remote add bincrafters https://api.bintray.com/conan/bincrafters/public-conan
-    - CONAN_SYSREQUIRES_MODE=enabled conan install .. --build=missing
+    - CONAN_SYSREQUIRES_MODE=enabled conan install . --build=missing -g cmake -if build
   allow_failure: true
 
 # Unix Build