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Patric Stout

Add: '-X' option to ignore global folders in the search path (#9341)

This is extreme useful for automated testing. Without this, OpenTTD
will always look in your personal-dir (like ~/.local/share/openttd
or %USER%\Documents\OpenTTD). For most users this is exactly what
we want, that there is a shared place for all their files.

However, for automated testing this is rather annoying, as your
local development files influence the automated test. As such,
'-X' counters this, and only gives the local folders. This is
especially useful in combination with '-x' and '-c'.

# Set static linking if the platform requires it.
#
# set_static()
#
function(set_static_if_needed)
     if(MINGW)
        # Let exectutables run outside MinGW environment
        # Force searching static libs
        set(CMAKE_FIND_LIBRARY_SUFFIXES ".a" PARENT_SCOPE)

        # Force static linking
        link_libraries(-static -static-libgcc -static-libstdc++)
    endif()
endfunction()