Re: [Mingw-users] Suppressing warnings in make? (displaying errors only)

[Greg C. <gch...@sb...>]

On 2009-07-08 05:21Z, John Martin wrote:
> I'm trying to use 'make' to build from a Makefile (automatically
> generated by Qt, which uses MinGW).
> 
> I'd like to suppress miscellaneous warnings, such as:
> -warning: converting to `int' from `float'
> -unused variable 'i'
> 
> Basically anything that isn't an actual error that is causing compile
> to fail. I often get bombarded with dozens of warnings and it takes a
> while to find the actual error.

Those warnings come from the compiler. The makefile presumably
invokes the compiler with options that enable those warnings;
to disable them, change those options.

Makefiles normally are written to let you override C++ compiler
options, most commonly by setting a variable CXXFLAGS. If Qt
follows that convention, then
  make CXXFLAGS='-Wno-conversion -Wno-unused' [...]
ought to inhibit those warnings.

It's generally better to fix the cause of such warnings, but
that's not always practicable if they stem from a framework
(e.g., Qt).