fix compilation error due to obstack.h issue https://bugs.gentoo.org/269638 --- a2ps-4.14/lib/obstack.h 2007-12-29 09:37:59.000000000 +0800 +++ a2ps-4.14.test/lib/obstack.h 2009-06-10 18:49:45.000000000 +0900 @@ -138,9 +138,9 @@ #define __need_ptrdiff_t #endif #endif +#endif #include -#endif #if defined (__STDC__) && __STDC__ #define PTR_INT_TYPE ptrdiff_t