Wine hasn't got a header called math.h
If you will look again at what you sent, you will see that the error is being thrown by <wine>/tools/makedep, which might not behave exactly the same as a compiler WRT header files. It might have ts own reasons to distinguish system headers from wine headers, FI. #include "math.h" is wrong if the .c file wants <math.h>.
So look at the following : - wine doesn't have math.h, so the right code is "#include <math.h>" - then #include <> must know where to look for system headers. If it doesn't, this is an installation problem.
What if the C header files are in /usr/local/include? Last time I built libc from source, that is where it wanted to install its header files, I think.
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