| 1 | /* > whichos.h |
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| 2 | * Determines which OS Survex will try to compile for |
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| 3 | * Copyright (C) 1993-1995 Olly Betts |
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| 4 | */ |
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| 5 | |
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| 6 | /* |
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| 7 | 1993.06.30 LF only eols |
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| 8 | incore filename above -> lower case |
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| 9 | 1993.07.02 added comment about makefiles |
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| 10 | 1993.07.19 "common.h" -> "osdepend.h" |
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| 11 | 1993.08.08 added missing linefeed in comment above |
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| 12 | 1993.08.12 recoded to try to auto-detect |
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| 13 | 1993.08.13 __MSDOS__ okay under Borland C++ |
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| 14 | 1993.08.15 should cope if UNIX defined on entry and DOS -> MSDOS |
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| 15 | 1993.08.16 corrected "indentify" to "identify"; fettled |
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| 16 | 1993.08.18 changed "don't" to "do not" in #error for GCC |
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| 17 | 1993.12.09 adjusted 'cos DJGPP defines UNIX and __GO32__ |
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| 18 | #undef MSDOS before #define-ing it |
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| 19 | 1993.12.11 added some support for Microsoft C |
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| 20 | 1993.12.13 tidied up |
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| 21 | 1994.03.30 msc defines _MSDOS (and not MSDOS) in ANSI mode |
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| 22 | 1994.04.10 added TOS |
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| 23 | 1994.04.27 only include once |
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| 24 | 1994.06.20 more Norcroft macros |
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| 25 | 1994.08.26 more Borland macros |
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| 26 | 1995.10.10 added __DJGPP__ to DJGPP macro list |
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| 27 | */ |
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| 28 | |
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| 29 | /* Built-in #define-s that identify compilers: (initals => checked) |
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| 30 | * __arm (Acorn) Norcroft RISC OS ARM C vsn 4.00 (OJWB) |
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| 31 | * also __CC_NORCROFT __riscos __acorn |
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| 32 | * unix,UNIX Unix systems (?) |
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| 33 | * __MSDOS__ Borland C++ (OJWB) |
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| 34 | * [also __BORLANDC__ (version num) __TURBOC__ (version num)] |
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| 35 | * __TURBOC__ Turbo C |
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| 36 | * __GO32__,unix,MSDOS,__DJGPP__ DJGPP (W) (also GO32, __MSDOS__) |
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| 37 | * _MSDOS, (MSDOS not ANSI) Microsoft C (OJWB) |
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| 38 | * MC68000, mc68000, SOZOBON, ATARI_ST, TOS|MINIX |
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| 39 | * Sozobon C (OJWB from MM's docs) |
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| 40 | */ |
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| 41 | |
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| 42 | #ifndef WHICHOS_H |
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| 43 | # define WHICHOS_H |
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| 44 | |
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| 45 | /* if OS has been defined, then assume they know what they're up to */ |
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| 46 | # ifndef OS |
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| 47 | /* Okay, let's try to be clever and auto-detect - if OS gets defined more |
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| 48 | * than once, compiler should barf and warn user |
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| 49 | */ |
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| 50 | # ifdef __arm |
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| 51 | # define OS RISCOS /* RISCiX too? */ |
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| 52 | # endif |
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| 53 | # if (defined (_MSDOS) || defined(MSDOS) || defined(__MSDOS__)) |
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| 54 | # undef unix /* DJGPP defines this */ |
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| 55 | # undef MSDOS |
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| 56 | # define OS MSDOS |
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| 57 | # endif |
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| 58 | # if (defined(unix) || defined(UNIX)) |
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| 59 | # undef UNIX /* to stop it causing problems later */ |
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| 60 | # define OS UNIX |
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| 61 | # endif |
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| 62 | # if (defined(ATARI_ST) || defined(TOS)) |
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| 63 | # undef TOS |
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| 64 | # define OS TOS |
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| 65 | # endif |
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| 66 | # if (defined(__WIN32__)) |
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| 67 | # undef WIN32 |
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| 68 | # define OS WIN32 |
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| 69 | # endif |
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| 70 | /* etc ... */ |
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| 71 | # endif /*!defined(OS)*/ |
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| 72 | |
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| 73 | /* predefine OS to be one of these (eg in the make file) to force a compile |
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| 74 | * for an OS/compiler combination not support or that clashes somehow. |
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| 75 | * eg with -DOS=AMIGA to predefine OS as AMIGA |
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| 76 | */ |
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| 77 | # define RISCOS 1 |
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| 78 | # define MSDOS 2 |
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| 79 | # define UNIX 3 |
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| 80 | # define AMIGA 4 |
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| 81 | # define TOS 5 |
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| 82 | # define WIN32 6 |
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| 83 | /* Just numbers, not a rating system ;) */ |
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| 84 | |
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| 85 | /* One last check, in case nothing worked */ |
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| 86 | # ifndef OS |
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| 87 | # error Sorry, do not know what OS to compile for - look at whichos.h |
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| 88 | # endif |
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| 89 | #endif |
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