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Date:	Sun, 18 Mar 2012 18:49:52 +0100
From:	marco atzeri <marco DOT atzeri AT gmail DOT com>
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Subject:	Re: Attempt to build aplus-fsf-4.22 (EnumTable)
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On 3/18/2012 5:46 PM, Tom Szczesny wrote:
> The current issue that I am facing is with an EnumTable.  (see code
> listing below).
> It exists in a file named  aplus-fsf-4.22/src/cxsys/eponymous.c
> LEXABUG is not defined in Cygwin.  As far as I can tell, it is not
> defined in Gentoo Linux either.
> The code builds OK in Gentoo Linux.
>
> In Cygwin, with LEXABUG not defined, I  get:
>      error: 'FIOCLEX' undeclared here (not in a function)
>
> In Cygwin, with LEXABUG defined, I get:
>      error 'FIOCLEX" undeclared (first use in this function)
>
> FIOCLEX is not declared (or mentioned) anywhere else in the source code package.

I suspect that FIOCLEX and FIONCLEX are not defined at all on cygwin.

On BSD they are defined on sys/filio.h as

  #define FIOCLEX         _IO('f', 1)
  #define FIONCLEX        _IO('f', 2)

see  http://fxr.watson.org/fxr/ident?im=10;i=FIOCLEX


While on Linux they are defined or
  #define FIOCLEX         _IO('f', 1)
  #define FIONCLEX        _IO('f', 2)
or
  #define FIONCLEX        0x5450
  #define FIOCLEX         0x5451

see http://lxr.free-electrons.com/ident?i=FIOCLEX


>
> I will continue to research EnumTable structures in C, but I thouht
> someone might have a recommendation.
> listing of code fragment begins here:
>
> #ifndef LEXABUG
> static EnumTable IoctlEnums[] = {
> { FIOCLEX,      "FIOCLEX",      0       },
> { FIONCLEX,     "FIONCLEX",     0       },
> { FIONREAD,     "FIONREAD",     0       },
> { FIONBIO,      "FIONBIO",      0       },
> { FIOASYNC,     "FIOASYNC",     0       },
> { FIOSETOWN,    "FIOSETOWN",    0       },
> { FIOGETOWN,    "FIOGETOWN",    0       },
> { TIOCGPGRP,    "TIOCGPGRP",    0       },
> { TIOCSPGRP,    "TIOCSPGRP",    0       },
> { TIOCOUTQ,     "TIOCOUTQ",     0       },
> { TIOCSTI,      "TIOCSTI",      0       },
> { TIOCGWINSZ,   "TIOCGWINSZ",   0       },
> { TIOCSWINSZ,   "TIOCSWINSZ",   0       },
> { TIOCMGET,     "TIOCMGET",     0       },
> { TIOCMBIS,     "TIOCMBIS",     0       },
> { TIOCMBIC,     "TIOCMBIC",     0       },
> { TIOCMSET,     "TIOCMSET",     0       },
> { 0,            (char *)0,      0       }
> };
> #else
> static EnumTable IoctlEnums[] = {
> { 0,  "FIOCLEX",        0       },
> { 0,  "FIONCLEX",       0       },
> { 0,  "FIONREAD",       0       },
> { 0,  "FIONBIO",        0       },
> { 0,  "FIOASYNC",       0       },
> { 0,  "FIOSETOWN",      0       },
> { 0,  "FIOGETOWN",      0       },
> { 0,  "TCGETS", 0       },
> { 0,  "TCSETS", 0       },
> { 0,  "TCSETSW",        0       },
> { 0,  "TCSETSF",        0       },
> { 0,  "TCXONC", 0       },
> { 0,  "TCFLSH", 0       },
> { 0,  "TIOCSCTTY",      0       },
> { 0,  "TIOCGPGRP",      0       },
>
> { 0,  "TIOCSPGRP",      0       },
> { 0,  "TIOCOUTQ",       0       },
> { 0,  "TIOCSTI",        0       },
> { 0,  "TIOCGWINSZ",     0       },
> { 0,  "TIOCSWINSZ",     0       },
> { 0,  "TIOCMGET",       0       },
> { 0,  "TIOCMBIS",       0       },
> { 0,  "TIOCMBIC",       0       },
> { 0,  "TIOCMSET",       0       },
> { 0,  "TIOCGSOFTCAR",   0       },
> { 0,  "TIOCSSOFTCAR",   0       },
> { 0,            (char *)0,      0       }
> };
>
> int initIoctlTable(void)
> {
>    EnumTable *EnumTablePtr = IoctlEnums;
>    EnumTablePtr->value = FIOCLEX; EnumTablePtr ++;
>    EnumTablePtr->value = FIONCLEX; EnumTablePtr ++;
>    EnumTablePtr->value = FIONREAD; EnumTablePtr ++;
>    EnumTablePtr->value = FIONBIO; EnumTablePtr ++;
>    EnumTablePtr->value = FIOASYNC; EnumTablePtr ++;
>    EnumTablePtr->value = FIOSETOWN; EnumTablePtr ++;
>    EnumTablePtr->value = FIOGETOWN; EnumTablePtr ++;
>    EnumTablePtr->value = TCGETS; EnumTablePtr ++;
>    EnumTablePtr->value = TCSETS; EnumTablePtr ++;
>    EnumTablePtr->value = TCSETSW; EnumTablePtr ++;
>    EnumTablePtr->value = TCSETSF; EnumTablePtr ++;
>    EnumTablePtr->value = TCXONC; EnumTablePtr ++;
>    EnumTablePtr->value = TCFLSH; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCSCTTY; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCGPGRP; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCSPGRP; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCOUTQ; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCSTI; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCGWINSZ; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCSWINSZ; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCMGET; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCMBIS; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCMBIC; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCMSET; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCGSOFTCAR; EnumTablePtr ++;
>    EnumTablePtr->value = TIOCSSOFTCAR;
>    return 0;
>
> }
> #endif
>

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