Googletest export

Remove -Werror from the CMake compiler flags

We should not force warnings as errors on users.
Sometimes compilers introduce new warnings which
will break builds.

Instead, we manually turn this flag on in our continuous integration
scripts so we can catch these errors, but not force them on our users.

Fixes #3447

PiperOrigin-RevId: 380241852

Author: derekmauro

googletest/cmake/internal_utils.cmake

@@ -84,13 +84,13 @@ macro(config_compiler_and_linker)
     # Ensure MSVC treats source files as UTF-8 encoded.
     set(cxx_base_flags "${cxx_base_flags} -utf-8")
   elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-    set(cxx_base_flags "-Wall -Wshadow -Werror -Wconversion")
+    set(cxx_base_flags "-Wall -Wshadow -Wconversion")
     set(cxx_exception_flags "-fexceptions")
     set(cxx_no_exception_flags "-fno-exceptions")
     set(cxx_strict_flags "-W -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wredundant-decls")
     set(cxx_no_rtti_flags "-fno-rtti")
   elseif (CMAKE_COMPILER_IS_GNUCXX)
-    set(cxx_base_flags "-Wall -Wshadow -Werror")
+    set(cxx_base_flags "-Wall -Wshadow")
     if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0.0)
       set(cxx_base_flags "${cxx_base_flags} -Wno-error=dangling-else")
     endif()