how to disable gcc warning “cc1: warning: command line option ‘-std=c++11’ is valid for C++/ObjC++ but not for C [enabled by default]”

﹥>﹥吖頭↗ 提交于 2019-12-03 02:52:54

Code issue warnings can be silenced with -Wno-xxx options because sometimes you don't have control over the source code. But a warning telling you that a command-line option is incorrect cannot be silenced with yet another command-line option — if you can affect compiler invocation, then why not just remove the incorrect option?

This particular warning tells you that you cannot set standard to C++11 when compiling C code. To get rid of it, find where -std=c++11 is defined in the build configuration, and make sure it is only applied to C++ compilation, and not for C. For example, move it from CFLAGS to CXXFLAGS, or cmake's equivalent thereof.

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