minor code cleanups
- configure: Use
AC_SYS_LARGEFILEto enable large file support -
ClearFontStuff: avoid NULL pointer dereference -
FindKeysymsByName: avoid NULL pointer dereference - Variable scope reductions
- Use C99 struct initializers
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AC_SYS_LARGEFILE to enable large file supportClearFontStuff: avoid NULL pointer dereferenceFindKeysymsByName: avoid NULL pointer dereference