[Bug driver/30491] behaviour with -MMD and -c / -E causes differring behaviours.

[fang at csl dot cornell dot edu]

------- Comment #1 from fang at csl dot cornell dot edu  2007-01-17 20:39 -------
The problem with passing -E -o ... is that gcc has to assume the default output
object as the target, which strips the directory from the name, since -o is
used for the resulting .i file.  That is what -MT is for, as you've found.  

Usually when I generate .i files, I don't care what .o file it assumes (or its
deps), and just redirect the result: gcc -E file.c > file.i

If you want to generate both .o and .i at the same time, you could pass
-save-temps?


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fang at csl dot cornell dot edu changed:

           What    |Removed                     |Added
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                 CC|                            |fang at csl dot cornell dot
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30491