pcre-config.h

   1 /* config.h.  Generated by configure.  */
   2
   3 /* On Unix systems config.in is converted by configure into config.h. PCRE is
   4 written in Standard C, but there are a few non-standard things it can cope
   5 with, allowing it to run on SunOS4 and other "close to standard" systems.
   6
   7 On a non-Unix system you should just copy this file into config.h, and set up
   8 the macros the way you need them. You should normally change the definitions of
   9 HAVE_STRERROR and HAVE_MEMMOVE to 1. Unfortunately, because of the way autoconf
  10 works, these cannot be made the defaults. If your system has bcopy() and not
  11 memmove(), change the definition of HAVE_BCOPY instead of HAVE_MEMMOVE. If your
  12 system has neither bcopy() nor memmove(), leave them both as 0; an emulation
  13 function will be used. */
  14
  15 /* If you are compiling for a system that uses EBCDIC instead of ASCII
  16 character codes, define this macro as 1. On systems that can use "configure",
  17 this can be done via --enable-ebcdic. */
  18
  19 #ifndef EBCDIC
  20 #define EBCDIC 0
  21 #endif
  22
  23 /* If you are compiling for a system that needs some magic to be inserted
  24 before the definition of an exported function, define this macro to contain the
  25 relevant magic. It apears at the start of every exported function. */
  26
  27 #define EXPORT
  28
  29 /* Define to empty if the "const" keyword does not work. */
  30
  31 /* #undef const */
  32
  33 /* Define to "unsigned" if <stddef.h> doesn't define size_t. */
  34
  35 /* #undef size_t */
  36
  37 /* The following two definitions are mainly for the benefit of SunOS4, which
  38 doesn't have the strerror() or memmove() functions that should be present in
  39 all Standard C libraries. The macros HAVE_STRERROR and HAVE_MEMMOVE should
  40 normally be defined with the value 1 for other systems, but unfortunately we
  41 can't make this the default because "configure" files generated by autoconf
  42 will only change 0 to 1; they won't change 1 to 0 if the functions are not
  43 found. */
  44
  45 #define HAVE_STRERROR 1
  46 #define HAVE_MEMMOVE 1
  47
  48 /* There are some non-Unix systems that don't even have bcopy(). If this macro
  49 is false, an emulation is used. If HAVE_MEMMOVE is set to 1, the value of
  50 HAVE_BCOPY is not relevant. */
  51
  52 #define HAVE_BCOPY 1
  53
  54 /* The value of NEWLINE determines the newline character. The default is to
  55 leave it up to the compiler, but some sites want to force a particular value.
  56 On Unix systems, "configure" can be used to override this default. */
  57
  58 #ifndef NEWLINE
  59 #define NEWLINE '\n'
  60 #endif
  61
  62 /* The value of LINK_SIZE determines the number of bytes used to store
  63 links as offsets within the compiled regex. The default is 2, which allows for
  64 compiled patterns up to 64K long. This covers the vast majority of cases.
  65 However, PCRE can also be compiled to use 3 or 4 bytes instead. This allows for
  66 longer patterns in extreme cases. On Unix systems, "configure" can be used to
  67 override this default. */
  68
  69 #ifndef LINK_SIZE
  70 #define LINK_SIZE   2
  71 #endif
  72
  73 /* The value of MATCH_LIMIT determines the default number of times the match()
  74 function can be called during a single execution of pcre_exec(). (There is a
  75 runtime method of setting a different limit.) The limit exists in order to
  76 catch runaway regular expressions that take for ever to determine that they do
  77 not match. The default is set very large so that it does not accidentally catch
  78 legitimate cases. On Unix systems, "configure" can be used to override this
  79 default default. */
  80
  81 #ifndef MATCH_LIMIT
  82 #define MATCH_LIMIT 10000000
  83 #endif
  84
  85 /* When calling PCRE via the POSIX interface, additional working storage is
  86 required for holding the pointers to capturing substrings because PCRE requires
  87 three integers per substring, whereas the POSIX interface provides only two. If
  88 the number of expected substrings is small, the wrapper function uses space on
  89 the stack, because this is faster than using malloc() for each call. The
  90 threshold above which the stack is no longer use is defined by POSIX_MALLOC_
  91 THRESHOLD. On Unix systems, "configure" can be used to override this default.
  92 */
  93
  94 #ifndef POSIX_MALLOC_THRESHOLD
  95 #define POSIX_MALLOC_THRESHOLD 10
  96 #endif
  97
  98 /* PCRE uses recursive function calls to handle backtracking while matching.
  99 This can sometimes be a problem on systems that have stacks of limited size.
 100 Define NO_RECURSE to get a version that doesn't use recursion in the match()
 101 function; instead it creates its own stack by steam using pcre_recurse_malloc
 102 to get memory. For more detail, see comments and other stuff just above the
 103 match() function. On Unix systems, "configure" can be used to set this in the
 104 Makefile (use --disable-stack-for-recursion). */
 105
 106 /* #define NO_RECURSE */
 107
 108 /* End */