Header-only mode broken when including fmt/printf.h

[ghost]

This problem occurs in the latest master, since the change where the printf function declarations were pulled out into a separate header (fmt/printf.h).

In trying to use the fmt::printf function in header-only mode (by defining FMT_HEADER_ONLY), I get the following error (using clang on OS X):

format.cc:507:10: error: out-of-line definition of 'fprintf' does not match any declaration in namespace 'fmt'

The problem is that while fmt/printf.h provides the required declaration, format.cc ends up being included before the declaration via fmt/format.h (which is included near the top of fmt/printf.h).

I tried to work a fix but anything I come up with ends up being quite complicated. Hopefully there's a simple solution for this.

[vitaut]

Fixed in 0d5ef5c.

[vitaut]

Thanks for reporting!