Enable -Wall (#1644)

CMakeLists.txt

@@ -815,7 +815,9 @@ endif()
 if (HAVE_PARALLEL_JOBS)
   target_compile_options(rccl PRIVATE -parallel-jobs=12)
 endif()
-target_compile_options(rccl PRIVATE -Werror=uninitialized -Werror=sometimes-uninitialized)
+target_compile_options(rccl PRIVATE -Werror=uninitialized)
+target_compile_options(rccl PRIVATE -Werror=sometimes-uninitialized)
+target_compile_options(rccl PRIVATE -Wall)
 target_compile_options(rccl PRIVATE -Wno-format-nonliteral)
 target_compile_options(rccl PRIVATE -fgpu-rdc)               # Generate relocatable device code (required for extern __shared__)
 target_compile_options(rccl PRIVATE -fvisibility=hidden)     # Set symbol visibility to hidden by default