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8.9 C++ Support

Automake includes full support for C++.

Any package including C++ code must define the output variable CXX in; the simplest way to do this is to use the AC_PROG_CXX macro (see Particular Program Checks).

A few additional variables are defined when a C++ source file is seen:

The name of the C++ compiler.
Any flags to pass to the C++ compiler.
The maintainer's variant of CXXFLAGS.
The command used to actually compile a C++ source file. The file name is appended to form the complete command line.
The command used to actually link a C++ program.