diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/miscellany/patch-2.0.12u8/config.h.SH

   1 case $CONFIG in
   2 '')
   3     if test ! -f config.sh; then
   4         ln ../config.sh . || \
   5         ln ../../config.sh . || \
   6         ln ../../../config.sh . || \
   7         (echo "Can't find config.sh."; exit 1)
   8         echo "Using config.sh from above..."
   9     fi
  10     . ./config.sh
  11     ;;
  12 esac
  13 echo "Extracting config.h (with variable substitutions)"
  14 cat <<!GROK!THIS! >config.h
  15 /* config.h
  16  * This file was produced by running the config.h.SH script, which
  17  * gets its values from config.sh, which is generally produced by
  18  * running Configure.
  19  *
  20  * Feel free to modify any of this as the need arises.  Note, however,
  21  * that running config.h.SH again will wipe out any changes you've made.
  22  * For a more permanent change edit config.sh and rerun config.h.SH.
  23  */
  24
  25
  26 /* EUNICE:
  27  *      This symbol, if defined, indicates that the program is being compiled
  28  *      under the EUNICE package under VMS.  The program will need to handle
  29  *      things like files that don't go away the first time you unlink them,
  30  *      due to version numbering.  It will also need to compensate for lack
  31  *      of a respectable link() command.
  32  */
  33 /* VMS:
  34  *      This symbol, if defined, indicates that the program is running under
  35  *      VMS.  It is currently only set in conjunction with the EUNICE symbol.
  36  */
  37 #$d_eunice      EUNICE          /**/
  38 #$d_eunice      VMS             /**/
  39
  40 /* CPPSTDIN:
  41  *      This symbol contains the first part of the string which will invoke
  42  *      the C preprocessor on the standard input and produce to standard
  43  *      output.  Typical value of "cc -E" or "/lib/cpp".
  44  */
  45 /* CPPMINUS:
  46  *      This symbol contains the second part of the string which will invoke
  47  *      the C preprocessor on the standard input and produce to standard
  48  *      output.  This symbol will have the value "-" if CPPSTDIN needs a minus
  49  *      to specify standard input, otherwise the value is "".
  50  */
  51 #define CPPSTDIN "$cppstdin"
  52 #define CPPMINUS "$cppminus"
  53
  54 /* CHARSPRINTF:
  55  *      This symbol is defined if this system declares "char *sprintf()" in
  56  *      stdio.h.  The trend seems to be to declare it as "int sprintf()".  It
  57  *      is up to the package author to declare sprintf correctly based on the
  58  *      symbol.
  59  */
  60 /* #$d_charsprf CHARSPRINTF     /**/
  61
  62 /* FLEXFILENAMES:
  63  *      This symbol, if defined, indicates that the system supports filenames
  64  *      longer than 14 characters.
  65  */
  66 #$d_flexfnam    FLEXFILENAMES           /**/
  67
  68 /* index:
  69  *      This preprocessor symbol is defined, along with rindex, if the system
  70  *      uses the strchr and strrchr routines instead.
  71  */
  72 /* rindex:
  73  *      This preprocessor symbol is defined, along with index, if the system
  74  *      uses the strchr and strrchr routines instead.
  75  */
  76 #$d_index       index strchr    /* cultural */
  77 #$d_index       rindex strrchr  /*  differences? */
  78
  79 /* VOIDSIG:
  80  *      This symbol is defined if this system declares "void (*signal())()" in
  81  *      signal.h.  The old way was to declare it as "int (*signal())()".  It
  82  *      is up to the package author to declare things correctly based on the
  83  *      symbol.
  84  */
  85 #$d_voidsig     VOIDSIG         /**/
  86
  87 /* DIRHEADER:
  88  *      This definition indicates which directory library header to use.
  89  */
  90 $d_dirheader
  91
  92 /* HAVE_UNISTD_H:
  93  *      This is defined if the system has unistd.h.
  94  */
  95 #$d_unistd      HAVE_UNISTD_H   /**/
  96
  97 /* Reg1:
  98  *      This symbol, along with Reg2, Reg3, etc. is either the word "register"
  99  *      or null, depending on whether the C compiler pays attention to this
 100  *      many register declarations.  The intent is that you don't have to
 101  *      order your register declarations in the order of importance, so you
 102  *      can freely declare register variables in sub-blocks of code and as
 103  *      function parameters.  Do not use Reg<n> more than once per routine.
 104  */
 105
 106 #define Reg1 $reg1              /**/
 107 #define Reg2 $reg2              /**/
 108 #define Reg3 $reg3              /**/
 109 #define Reg4 $reg4              /**/
 110 #define Reg5 $reg5              /**/
 111 #define Reg6 $reg6              /**/
 112 #define Reg7 $reg7              /**/
 113 #define Reg8 $reg8              /**/
 114 #define Reg9 $reg9              /**/
 115 #define Reg10 $reg10            /**/
 116 #define Reg11 $reg11            /**/
 117 #define Reg12 $reg12            /**/
 118 #define Reg13 $reg13            /**/
 119 #define Reg14 $reg14            /**/
 120 #define Reg15 $reg15            /**/
 121 #define Reg16 $reg16            /**/
 122
 123 /* VOIDFLAGS:
 124  *      This symbol indicates how much support of the void type is given by this
 125  *      compiler.  What various bits mean:
 126  *
 127  *          1 = supports declaration of void
 128  *          2 = supports arrays of pointers to functions returning void
 129  *          4 = supports comparisons between pointers to void functions and
 130  *                  addresses of void functions
 131  *
 132  *      The package designer should define VOIDUSED to indicate the requirements
 133  *      of the package.  This can be done either by #defining VOIDUSED before
 134  *      including config.h, or by defining defvoidused in Myinit.U.  If the
 135  *      level of void support necessary is not present, defines void to int.
 136  */
 137 #ifndef VOIDUSED
 138 #define VOIDUSED $defvoidused
 139 #endif
 140 #define VOIDFLAGS $voidflags
 141 #if (VOIDFLAGS & VOIDUSED) != VOIDUSED
 142 #$define void int               /* is void to be avoided? */
 143 #$define M_VOID         /* Xenix strikes again */
 144 #endif
 145
 146 !GROK!THIS!