- strip -Werror to fix sparc64 build

Index: tools/cpp/CMakeLists.txt
--- tools/cpp/CMakeLists.txt.orig
+++ tools/cpp/CMakeLists.txt
@@ -26,30 +26,7 @@ project (generate_geocoding_data)
 # Helper functions dealing with finding libraries and programs this library
 # depends on.
 include (gtest.cmake)
-include (FetchContent)
 
-# Downloading the abseil sources.
-FetchContent_Declare(
-    abseil-cpp
-    GIT_REPOSITORY  https://github.com/abseil/abseil-cpp.git
-    GIT_TAG         origin/master
-)
-
-# Building the abseil binaries
-FetchContent_GetProperties(abseil-cpp)
-if (NOT abseil-cpp_POPULATED)
-    FetchContent_Populate(abseil-cpp)
-endif ()
-
-if (NOT abseil-cpp_POPULATED)
-   message (FATAL_ERROR "Could not build abseil-cpp binaries.")
-endif ()
-
-# Safeguarding against any potential link errors as mentioned in
-# https://github.com/abseil/abseil-cpp/issues/225
-set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
-add_subdirectory(${abseil-cpp_SOURCE_DIR} ${abseil-cpp_BINARY_DIR})
-
 find_or_build_gtest ()
 set (
   SOURCES
@@ -58,7 +35,7 @@ set (
 )
 
 if (NOT WIN32)
-  add_definitions ("-Wall -Werror")
+  add_definitions ("-Wall")
 endif ()
 
 include_directories ("src")
