Using GCC -MM flag

[Charles Brown]

All,

  I want to use the GCC -MM flag to reduce the size of dependency 
files, and hopefully speed the build.  How best to get this to the g++ 
command line?

  I tried to pass to configure using;

    configure --prefix=$HOME/install/Debug CXXFLAGS="-MM -Wall -Werror 
-ggdb -O0"

but this yielded;

    configure: error: C++ compiler cannot create executables

--CB
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