do some bash magic to rearrange CXX_FLAGS

CI/before_script.linux.sh

@@ -14,12 +14,7 @@ if [[ "${BUILD_TESTS_ONLY}" ]]; then
     BUILD_BENCHMARKS=ON
 fi
 
-CXX_FLAGS='-Werror -Wno-error=deprecated-declarations -Wno-error=nonnull -Wno-error=deprecated-copy'
-
-if [[ "${CXX}" == 'clang++' ]]; then
-    CXX_FLAGS="${CXX_FLAGS} -Wno-error=unused-lambda-capture -Wno-error=gnu-zero-variadic-macro-arguments -Wno-error=misleading-indentation"
-fi
-
+# setup our basic cmake build options
 declare -a CMAKE_CONF_OPTS=(
     -DCMAKE_C_COMPILER="${CC:-/usr/bin/cc}"
     -DCMAKE_CXX_COMPILER="${CXX:-/usr/bin/c++}"
@@ -29,10 +24,9 @@ declare -a CMAKE_CONF_OPTS=(
     -DCMAKE_BUILD_TYPE=RelWithDebInfo
     -DBUILD_SHARED_LIBS=OFF
     -DUSE_SYSTEM_TINYXML=ON
+    -DOPENMW_USE_SYSTEM_RECASTNAVIGATION=ON
     -DCMAKE_INSTALL_PREFIX=install
-    -DCMAKE_C_FLAGS="-Werror -Wno-error=misleading-indentation"
-    -DCMAKE_CXX_FLAGS="${CXX_FLAGS}"
-    -DOPENMW_CXX_FLAGS="-Werror=implicit-fallthrough"
+    -DOPENMW_CXX_FLAGS="-Werror -Werror=implicit-fallthrough"  # flags specific to OpenMW project
 )
 
 if [[ $CI_OPENMW_USE_STATIC_DEPS ]]; then
@@ -41,12 +35,13 @@ if [[ $CI_OPENMW_USE_STATIC_DEPS ]]; then
         -DOPENMW_USE_SYSTEM_OSG=OFF
         -DOPENMW_USE_SYSTEM_BULLET=OFF
         -DOPENMW_USE_SYSTEM_SQLITE3=OFF
+        -DOPENMW_USE_SYSTEM_RECASTNAVIGATION=OFF
     )
 fi
 
 if [[ $CI_CLANG_TIDY ]]; then
 	CMAKE_CONF_OPTS+=(
-	      -DCMAKE_CXX_CLANG_TIDY='clang-tidy;-checks=-*,boost-*,clang-analyzer-*,concurrency-*,performance-*,-header-filter=.*,bugprone-*,misc-definitions-in-headers,misc-misplaced-const,misc-redundant-expression,-bugprone-narrowing-conversions'
+	      -DCMAKE_CXX_CLANG_TIDY="clang-tidy;-checks=-*,boost-*,clang-analyzer-*,concurrency-*,performance-*,-header-filter=.*,bugprone-*,misc-definitions-in-headers,misc-misplaced-const,misc-redundant-expression,-bugprone-narrowing-conversions"
 	)
 fi
 
@@ -61,6 +56,16 @@ mkdir -p build
 cd build
 
 if [[ "${BUILD_TESTS_ONLY}" ]]; then
+
+    # flags specific to our test suite
+    CXX_FLAGS="-Wno-error=deprecated-declarations -Wno-error=nonnull -Wno-error=deprecated-copy"
+    if [[ "${CXX}" == 'clang++' ]]; then
+        CXX_FLAGS="${CXX_FLAGS} -Wno-error=unused-lambda-capture -Wno-error=gnu-zero-variadic-macro-arguments"
+    fi
+    CMAKE_CONF_OPTS+=(
+        -DCMAKE_CXX_FLAGS="${CXX_FLAGS}"
+    )
+
     ${ANALYZE} cmake \
         "${CMAKE_CONF_OPTS[@]}" \
         -DBUILD_OPENMW=OFF \