import libs are not deleted

[Prince213]

The import libs are not deleted in the clean target.
MWE:
mwe.zip
Steps to reproduce:

premake5 gmake2 # or premake5 gmake
make all clean

a file named test.lib can be found in bin\build

[tdesveauxPKFX]

Here is a quick override that 'fix' the issue.

require("gmake2)
premake.override(p.modules.gmake2.cpp, "cleanRules", function(oldFn, cfg, toolset)

require("gmake2)
premake.override(p.modules.gmake2.cpp, "cleanRules", function(oldFn, cfg, toolset)
    oldFn(cfg, toolset)
    if cfg.kind == p.SHAREDLIB and cfg.system == p.WINDOWS and not cfg.flags.NoImportLib then
        _p('ifeq (posix,$(SHELLTYPE))')
        _p('\t$(SILENT) rm -f  $(subst .dll,.lib,$(TARGET))')
        _p('else')
        _p('\t$(SILENT) if exist $(subst .dll,.lib,$(subst /,\\,$(TARGET))) del $(subst .dll,.lib,$(subst /,\\,$(TARGET)))')
        _p('endif')
    end
end)

However, as a more long term solution, we could have toolsets define a function that returns a list of additional output they generate.

function gcc.additionalOutputsList(cfg)
    local outputList = {}
    if cfg.kind == p.SHAREDLIB and cfg.system == p.WINDOWS and not cfg.flags.NoImportLib then
        table.insert(outputList, cfg.linktarget.relpath)
    end
    return outputList
end