treat warnings as errors only

Author: daantimmer

CMakeLists.txt

@@ -12,6 +12,7 @@ endif()
 if (CCR_STANDALONE)
     set(CCR_DEFAULTOPT On)
     set(CCR_EXCLUDE_FROM_ALL "")
+    set(CMAKE_COMPILE_WARNING_AS_ERROR On)
 else()
     set(CCR_DEFAULTOPT Off)
     set(CCR_EXCLUDE_FROM_ALL "EXCLUDE_FROM_ALL")
@@ -59,7 +60,7 @@ include(CTest)
 include(GoogleTest)
 
 if (CCR_FETCH_DEPS)
-    add_subdirectory(external)
+    add_subdirectory(external SYSTEM)
 else()
     find_package(CLI11 REQUIRED)
     find_package(nlohmann_json REQUIRED)
@@ -71,4 +72,7 @@ else()
 endif()
 
 add_subdirectory(cucumber_cpp)
-add_subdirectory(compatibility)
+
+if (CCR_STANDALONE)
+    add_subdirectory(compatibility)
+endif()

cucumber_cpp/CMakeLists.txt

@@ -1,7 +1,10 @@
 add_subdirectory(library)
 add_subdirectory(runner)
-add_subdirectory(example)
-add_subdirectory(acceptance_test)
+
+if (CCR_STANDALONE)
+    add_subdirectory(example)
+    add_subdirectory(acceptance_test)
+endif()
 
 add_library(cucumber_cpp INTERFACE)
 

cucumber_cpp/library/CMakeLists.txt

@@ -1,5 +1,3 @@
-set(CMAKE_COMPILE_WARNING_AS_ERROR On)
-
 add_library(cucumber_cpp.library ${CCR_EXCLUDE_FROM_ALL})
 
 target_sources(cucumber_cpp.library PRIVATE

cucumber_cpp/library/tag_expression/CMakeLists.txt

@@ -1,5 +1,3 @@
-set(CMAKE_COMPILE_WARNING_AS_ERROR On)
-
 add_library(cucumber_cpp.library.tag_expression ${CCR_EXCLUDE_FROM_ALL})
 
 target_sources(cucumber_cpp.library.tag_expression PRIVATE