I am trying to update the Boost SPEC file to actually compile both the 32bit and 64bit versions, but I am seeing an error when rebuilding. It appears that the mingw_cmake macro is not expanding the way that I expect it to when I pass in arguments.

If my %build section looks like this, then it works.

%build
%mingw_cmake -DBUILD_TESTS=NONE
%mingw_make %{?_smp_mflags}


When it looks like this, I get an error.

%build
%mingw_cmake -DBUILD_TESTS=NONE
%mingw_make %{?_smp_mflags}


The error is
mingw_cmake: invalid option -- 'D'
error: Unknown option ? in mingw_cmake()

Can anyone offer up some pointers on what I should look at to try and debug this?

-Jay