Update configure.ac

[ghost]

Fix linking issue on MSYS2

[ghost]

@chrisws

[chrisws]

Hi iahung3,

Thanks for your patch. Unfortunately this breaks cross compiling the windows version under linux.

On my system pkg-config -libs -static freetype2 gives Unknown option -libs

You could try changing it to pkg-config freetype2 --libs --static or alternatively this:

     if test $build_os = 'linux-gnu'; then
       PACKAGE_LIBS="${PACKAGE_LIBS} `sdl2-config --static-libs` `pkg-config freetype2 --libs`"
     else        
       PACKAGE_LIBS="${PACKAGE_LIBS} `sdl2-config --static-libs` `pkg-config -libs -static freetype2`"
     fi  

[ghost]

You could try changing it to pkg-config freetype2 --libs --static

Done. Thank you.

[chrisws]

That seems fine now.