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Annotation of gcc/config/lynx-ng.h, revision 1.1

1.1     ! root        1: /* Target independent definitions for LynxOS, using Lynx's old as and ld.
        !             2:    Copyright (C) 1993 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU CC.
        !             5: 
        !             6: GNU CC is free software; you can redistribute it and/or modify
        !             7: it under the terms of the GNU General Public License as published by
        !             8: the Free Software Foundation; either version 2, or (at your option)
        !             9: any later version.
        !            10: 
        !            11: GNU CC is distributed in the hope that it will be useful,
        !            12: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: GNU General Public License for more details.
        !            15: 
        !            16: You should have received a copy of the GNU General Public License
        !            17: along with GNU CC; see the file COPYING.  If not, write to
        !            18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            19: 
        !            20: /* This is for backwards compatibility with older Lynx tools, which use
        !            21:    a version of a.out format. */
        !            22: 
        !            23: #undef ASM_SPEC
        !            24: #define ASM_SPEC "%{mcoff:-C}"
        !            25: 
        !            26: #undef CPP_SPEC
        !            27: #define CPP_SPEC "%{mthreads:-D_MULTITHREADED}  \
        !            28:   %{mposix:-D_POSIX_SOURCE}  \
        !            29:   %{msystem-v:-I/usr/include_v}"
        !            30: 
        !            31: /* Provide required defaults for linker switches.  */
        !            32: 
        !            33: #undef LINK_SPEC
        !            34: #define LINK_SPEC "%{msystem-v:-V} %{mcoff:-k}"
        !            35: 
        !            36: #undef LIB_SPEC
        !            37: #define LIB_SPEC "%{mthreads:-L/lib/thread/}%{msystem-v:-lc_v}%{!msystem-v:%{mposix:-lc_p} -lc}"
        !            38: 
        !            39: #undef STARTFILE_SPEC
        !            40: #define STARTFILE_SPEC "%{p:%{mcoff:pinit1.o%s}%{!mcoff:pinit.o%s}}%{!p:%{msystem-v:%{mcoff:vinit1.o%s}%{!mcoff:vinit.o%s}}%{!msystem-v:%{mcoff:init1.o%s}%{!mcoff:init.o%s}}}"
        !            41: 
        !            42: #undef ENDFILE_SPEC
        !            43: #define ENDFILE_SPEC "%{mcoff:initn.o%s} %{p:_etext.o%s}"
        !            44: 
        !            45: #undef SIZE_TYPE
        !            46: #define SIZE_TYPE "unsigned int"
        !            47: 
        !            48: #undef WCHAR_TYPE
        !            49: #define WCHAR_TYPE "int"
        !            50: 
        !            51: #undef PTRDIFF_TYPE
        !            52: #define PTRDIFF_TYPE "long int"
        !            53: 
        !            54: /* We want to output DBX debugging information.  */
        !            55: 
        !            56: #define DBX_DEBUGGING_INFO
        !            57: #undef PREFERRED_DEBUGGING_TYPE
        !            58: #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
        !            59: 
        !            60: /* We optionally want to be able to produce SDB debugging output so that
        !            61:    we can create debuggable SDB/coff files.  This won't be needed when
        !            62:    stabs-in-coff works.  */
        !            63: 
        !            64: #define SDB_DEBUGGING_INFO
        !            65: 
        !            66: /* Generate calls to memcpy, memcmp and memset.  */
        !            67: 
        !            68: #define TARGET_MEM_FUNCTIONS
        !            69: 
        !            70: /* Handle #pragma pack and sometimes #pragma weak.  */
        !            71: 
        !            72: #define HANDLE_SYSV_PRAGMA
        !            73: 
        !            74: #define TARGET_THREADS (target_flags & MASK_THREADS)
        !            75: #define MASK_THREADS   0x40000000
        !            76: 
        !            77: #define TARGET_POSIX   (target_flags & MASK_POSIX)
        !            78: #define MASK_POSIX     0x20000000
        !            79: 
        !            80: #define TARGET_SYSTEM_V        (target_flags & MASK_SYSTEM_V)
        !            81: #define MASK_SYSTEM_V  0x10000000
        !            82: 
        !            83: #define TARGET_COFF    (target_flags & MASK_COFF)
        !            84: #define MASK_COFF      0x08000000
        !            85: 
        !            86: #undef SUBTARGET_SWITCHES
        !            87: #define SUBTARGET_SWITCHES \
        !            88:     {"threads",                MASK_THREADS},          \
        !            89:     {"posix",          MASK_POSIX},            \
        !            90:     {"system-v",       MASK_SYSTEM_V},         \
        !            91:     {"coff",           MASK_COFF},
        !            92: 
        !            93: #undef SUBTARGET_OVERRIDE_OPTIONS
        !            94: #define SUBTARGET_OVERRIDE_OPTIONS \
        !            95: { if (TARGET_SYSTEM_V && profile_flag)                 \
        !            96:     warning ("-msystem-v and -p are incompatible");            \
        !            97:   if (TARGET_SYSTEM_V && TARGET_THREADS)                       \
        !            98:     warning ("-msystem-v and -mthreads are incompatible"); }
        !            99: 
        !           100: /* Define this so that C++ destructors will use atexit.  */
        !           101: 
        !           102: #define HAVE_ATEXIT
        !           103: 
        !           104: /* This is defined only so that we can find the assembler.  Everything else
        !           105:    is in /bin.  */
        !           106: 
        !           107: #define MD_EXEC_PREFIX "/usr/local/lib/gcc-"
        !           108: 
        !           109: /* This is needed because /bin/ld does not handle -L options correctly. */
        !           110: 
        !           111: #define LINK_LIBGCC_SPECIAL_1
        !           112: 
        !           113: /* The Lynx linker considers __main to be a possible entry point, so we
        !           114:    must use a different name.  */
        !           115: 
        !           116: #define NAME__MAIN "____main"
        !           117: #define SYMBOL__MAIN ____main

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