name of object compiled by current translation unit in C

is there a macro or a global variable which through which I can learn about the n开发者_开发技巧ame of the object file the current translation unit will be used for in C? I am only aware of the source file macro.

Thanks.

Not in standard C.

The preprocessor may be implemented as a separate program that has no knowledge of object files, so it can't be a built-in macro.

A compiler could in theory produce a symbol with the object file name, but that would be invalidated as soon as the object file is renamed by the user.

You can get the build system to #define the object name:

# Compile ${module}.c to ${module}.o
cc ${CPPFLAGS} ${CFLAGS} -DOBJNAME=${module}.o -c -o ${module.o} ${module}.c

but the point about renaming still stands.

(This is just a snippet of shell code, but it could be turned into a Makefile rule, I suppose.)

I don't think this exists. The only thing I can come up with is you could use the ## glue macro to combine __FILE__ with ".o"... But even that isn't exactly what your asking for as you'd get foo.c.o.