GCC：使用c ++ 11时发出警告

Question

Given

Cross-platform C++ project that has to build on some ancient windows mobile platforms. However the development is done with GCC.

Problem

Every time that C++11 feature is used it will build locally but fail on the build server (mobile windows).

Question

Is it possible to configure GCC to somehow warn if C++11 feature is used in our code-base (excluding other source-dependencies).

What have you tried?

I know about using -std=c++98 -pedantic , but:

1. I would like to use the latest compiler standard on Linux platform
2. There are some linux-only third-party dependencies (build from the source) that require C++11

Answer 1

Build the code you need to be C++98 compatible using C++98 flags.

Build the code you need to be C++11 compatible using C++11 flags.

Examine the documentation of the compiler and standard library used to ensure ABI compatibility between code built with C++98 and C++11; you may have to (for example) use C++98 strings in your C++11 code in order to have ABI compatibility, assuming you pass std::string s between the C++98 and C++11 code bases.

You cannot both use C++11 and not use C++11 when building the same file, unless you build it twice. Which is also an option; build the C++98 compatible stuff twice, once with C++latest and once with C++98. Throw away the C++98 build after halting on errors and warnings.