Difference between CPPFLAGS and CXXFLAGS in GNU Make
2013-05-10 13:35
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CPPFLAGSis
supposed to be for flags for the C PreProcessor;
CXXFLAGSis
for flags for the C++ compiler.
The default rules in make (on my machine, at any rate) pass
CPPFLAGSto
just about everything,
CFLAGSis
only passed when compiling and linking C, and
CXXFLAGSis
only passed when compiling and linking C++.
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