Index: rapidjson-1.1.0/CMakeLists.txt
===================================================================
--- rapidjson-1.1.0/CMakeLists.txt
+++ rapidjson-1.1.0/CMakeLists.txt	2018-01-26 21:23:59.814522583 +0100
@@ -50,7 +50,7 @@
 endif(CCACHE_FOUND)
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wall -Wextra -Werror")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wall -Wextra")
     if (RAPIDJSON_BUILD_CXX11)
         if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.7.0")
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
@@ -73,7 +73,7 @@
         endif()
     endif()
 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wall -Wextra -Werror -Wno-missing-field-initializers")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wall -Wextra -Wno-missing-field-initializers")
     if (RAPIDJSON_BUILD_CXX11)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
     endif()
Index: rapidjson-1.1.0/test/unittest/CMakeLists.txt
===================================================================
--- rapidjson-1.1.0/test/unittest/CMakeLists.txt
+++ rapidjson-1.1.0/test/unittest/CMakeLists.txt	2018-01-26 21:24:50.484535624 +0100
@@ -37,9 +37,9 @@
 endif(CCACHE_FOUND)
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal")
 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal -Wimplicit-fallthrough -Weverything")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal -Wimplicit-fallthrough -Weverything")
     # If the user is running a newer version of Clang that includes the
     # -Wdouble-promotion, we will ignore that warning.
     if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 3.7)
Index: rapidjson-1.1.0/example/CMakeLists.txt
===================================================================
--- rapidjson-1.1.0/example/CMakeLists.txt
+++ rapidjson-1.1.0/example/CMakeLists.txt	2018-01-26 21:24:24.404528910 +0100
@@ -26,9 +26,9 @@
 add_definitions(-D__STDC_FORMAT_MACROS)
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -Werror -Wall -Wextra -Weffc++ -Wswitch-default")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -Wall -Wextra -Weffc++ -Wswitch-default")
 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal -Wimplicit-fallthrough -Weverything")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Weffc++ -Wswitch-default -Wfloat-equal -Wimplicit-fallthrough -Weverything")
 endif()
 
 foreach (example ${EXAMPLES})