/* * jconfig.doc * * Copyright (C) 1991-1994, Thomas G. Lane. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README file. * * This file documents the configuration options that are required to * customize the JPEG software for a particular system. * */ #include "GUI.h" /* Only needed for GUI_USE_PARA(xxx) */ /* * These symbols indicate the properties of your machine or compiler. * #define the symbol if yes, #undef it if no. */ /* Does your compiler support the declaration "unsigned char" ? * How about "unsigned short" ? */ #define HAVE_UNSIGNED_CHAR /* Define this if an ordinary "char" type is unsigned. * If you're not sure, leaving it undefined will work at some cost in speed. * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal. */ #ifdef CHAR_IS_UNSIGNED #undef CHAR_IS_UNSIGNED #endif #define HAVE_STDDEF_H /* Define this if your system has an ANSI-conforming file. */ #define HAVE_STDLIB_H /* Define this if your system has an ANSI-conforming file. */ #ifdef NEED_BSD_STRINGS #undef NEED_BSD_STRINGS /* Define this if your system does not have an ANSI/SysV , but does have a BSD-style . */ #endif /* Define this if your system does not provide typedef size_t in any of the * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in * instead. */ #ifdef NEED_SYS_TYPES_H #undef NEED_SYS_TYPES_H #endif /* For 80x86 machines, you need to define NEED_FAR_POINTERS, * unless you are using a large-data memory model or 80386 flat-memory mode. * On less brain-damaged CPUs this symbol must not be defined. * (Defining this symbol causes large data structures to be referenced through * "far" pointers and to be allocated with a special version of malloc.) */ #ifdef NEED_SYS_TYPES_H #undef NEED_FAR_POINTERS #endif /* Although a real ANSI C compiler can deal perfectly well with pointers to * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI * and pseudo-ANSI compilers get confused. To keep one of these bozos happy, * define INCOMPLETE_TYPES_BROKEN. This is not recommended unless you * actually get "missing structure definition" warnings or errors while * compiling the JPEG code. */ #ifdef INCOMPLETE_TYPES_BROKEN #undef INCOMPLETE_TYPES_BROKEN #endif /* * The following options affect code selection within the JPEG library, * but they don't need to be visible to applications using the library. * To minimize application namespace pollution, the symbols won't be * defined unless JPEG_INTERNALS has been defined. */ #ifdef JPEG_INTERNALS /* Define this if your compiler implements ">>" on signed values as a logical * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift, * which is the normal and rational definition. */ #ifdef RIGHT_SHIFT_IS_UNSIGNED #undef RIGHT_SHIFT_IS_UNSIGNED #endif #endif /* JPEG_INTERNALS */ #ifndef GUI_USE_PARA #define GUI_USE_PARA(x) #endif