4.4BSD/usr/src/contrib/gcc-2.3.3/config/i386linux.h

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/* Definitions for Intel 386 running Linux
 * Copyright (C) 1992 Free Software Foundation, Inc.
 *
 * Written by H.J. Lu (hlu@eecs.wsu.edu)
 *
 * Linux is a POSIX.1 compatible UNIX clone for i386, which uses GNU
 * stuffs as the native stuffs.
 */

#if 0	/* The FSF has fixed the known bugs. But ....... */

/* Linux has a hacked gas 1.38.1, which can handle repz, repnz
 * and fildll.
 */

#define GOOD_GAS

#endif

/* This is tested by i386gas.h.  */
#define YES_UNDERSCORES

#include "i386gstabs.h"

/* Specify predefined symbols in preprocessor.  */

#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-Dunix -Di386 -Dlinux"

#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"

#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"

#undef WCHAR_TYPE
#define WCHAR_TYPE "long int"

#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD

#undef HAVE_ATEXIT
#define HAVE_ATEXIT

/* Linux uses ctype from glibc.a. I am not sure how complete it is.
 * For now, we play safe. It may change later.
 */
#if 0
#undef MULTIBYTE_CHARS
#define MULTIBYTE_CHARS	1
#endif

#undef LIB_SPEC
#define LIB_SPEC "%{g*:-lg} %{!g*:%{!p:%{!pg:-lc}}%{p:-lgmon -lc_p}%{pg:-lgmon -lc_p}}"


#undef STARTFILE_SPEC
#undef GPLUSPLUS_INCLUDE_DIR

#ifdef CROSS_COMPILE

/*
 * For cross-compile, we just need to search `$(tooldir)/lib'
 */

#define STARTFILE_SPEC  \
  "%{g*:crt0.o%s -static} %{!g*:%{pg:gcrt0.o%s -static} %{!pg:%{p:gcrt0.o%s -static} %{!p:crt0.o%s %{!static:%{nojump:-nojump}} %{static:-static}}}} -L"TOOLDIR"/lib"

/*
 *The cross-compile uses this.
 */
#define GPLUSPLUS_INCLUDE_DIR TOOLDIR"/g++-include"

#else

#define STARTFILE_SPEC  \
  "%{g*:crt0.o%s -static} %{!g*:%{pg:gcrt0.o%s -static} %{!pg:%{p:gcrt0.o%s -static} %{!p:crt0.o%s %{!static:%{nojump:-nojump}} %{static:-static}}}}"

/*
 *The native Linux system uses this.
 */
#define GPLUSPLUS_INCLUDE_DIR "/usr/g++-include"

#endif