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revision 97 by ph10, Mon Mar 5 12:36:47 2007 UTC revision 851 by ph10, Thu Jan 5 17:57:28 2012 UTC
# Line 1  Line 1 
1  dnl Process this file with autoconf to produce a configure script.  dnl Process this file with autoconf to produce a configure script.
2    
3  m4_define(pcre_major, [7])  dnl NOTE FOR MAINTAINERS: Do not use minor version numbers 08 or 09 because
4  m4_define(pcre_minor, [1])  dnl the leading zeros may cause them to be treated as invalid octal constants
5  m4_define(pcre_prerelease, [-RC0])  dnl if a PCRE user writes code that uses PCRE_MINOR as a number. There is now
6  m4_define(pcre_date, [2006-12-18])  dnl a check further down that throws an error if 08 or 09 are used.
7    
8    dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might
9    dnl be defined as -RC2, for example. For real releases, it should be empty.
10    
11    m4_define(pcre_major, [8])
12    m4_define(pcre_minor, [30])
13    m4_define(pcre_prerelease, [-PT1])
14    m4_define(pcre_date, [2012-01-01])
15    
16  # Libtool shared library interface versions (current:revision:age)  # Libtool shared library interface versions (current:revision:age)
17  m4_define(libpcre_version, [0:1:0])  m4_define(libpcre_version, [1:0:0])
18    m4_define(libpcre16_version, [0:0:0])
19  m4_define(libpcreposix_version, [0:0:0])  m4_define(libpcreposix_version, [0:0:0])
20  m4_define(libpcrecpp_version, [0:0:0])  m4_define(libpcrecpp_version, [0:0:0])
21    
# Line 15  AC_INIT(PCRE, pcre_major.pcre_minor[]pcr Line 24  AC_INIT(PCRE, pcre_major.pcre_minor[]pcr
24  AC_CONFIG_SRCDIR([pcre.h.in])  AC_CONFIG_SRCDIR([pcre.h.in])
25  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
26  AC_CONFIG_HEADERS(config.h)  AC_CONFIG_HEADERS(config.h)
27    
28    # This was added at the suggestion of libtoolize (03-Jan-10)
29    AC_CONFIG_MACRO_DIR([m4])
30    
31    # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
32    # "-g" for any other compiler. There doesn't seem to be a standard way of
33    # getting rid of the -g (which I don't think is needed for a production
34    # library). This fudge seems to achieve the necessary. First, we remember the
35    # externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and
36    # AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not
37    # set, they will be set to Autoconf's defaults. Afterwards, if the original
38    # values were not set, remove the -g from the Autoconf defaults.
39    # (PH 02-May-07)
40    
41    remember_set_CFLAGS="$CFLAGS"
42    remember_set_CXXFLAGS="$CXXFLAGS"
43    
44  AC_PROG_CC  AC_PROG_CC
45  AC_PROG_CXX  AC_PROG_CXX
46    
47    if test "x$remember_set_CFLAGS" = "x"
48    then
49      if test "$CFLAGS" = "-g -O2"
50      then
51        CFLAGS="-O2"
52      elif test "$CFLAGS" = "-g"
53      then
54        CFLAGS=""
55      fi
56    fi
57    
58    if test "x$remember_set_CXXFLAGS" = "x"
59    then
60      if test "$CXXFLAGS" = "-g -O2"
61      then
62        CXXFLAGS="-O2"
63      elif test "$CXXFLAGS" = "-g"
64      then
65        CXXFLAGS=""
66      fi
67    fi
68    
69    # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
70    # Check for that case, and just disable c++ code if g++ doesn't run.
71    AC_LANG_PUSH(C++)
72    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],, CXX=""; CXXCP=""; CXXFLAGS="")
73    AC_LANG_POP
74    
75    # Check for a 64-bit integer type
76    AC_TYPE_INT64_T
77    
78  AC_PROG_INSTALL  AC_PROG_INSTALL
79  AC_LIBTOOL_WIN32_DLL  AC_LIBTOOL_WIN32_DLL
80  AC_PROG_LIBTOOL  LT_INIT
81    AC_PROG_LN_S
82    
83  PCRE_MAJOR="pcre_major"  PCRE_MAJOR="pcre_major"
84  PCRE_MINOR="pcre_minor"  PCRE_MINOR="pcre_minor"
85  PCRE_PRERELEASE="pcre_prerelease"  PCRE_PRERELEASE="pcre_prerelease"
86  PCRE_DATE="pcre_date"  PCRE_DATE="pcre_date"
87    
88    if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09"
89    then
90      echo "***"
91      echo "*** Minor version number $PCRE_MINOR must not be used. ***"
92      echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***"
93      echo "***"
94      exit 1
95    fi
96    
97  AC_SUBST(PCRE_MAJOR)  AC_SUBST(PCRE_MAJOR)
98  AC_SUBST(PCRE_MINOR)  AC_SUBST(PCRE_MINOR)
99  AC_SUBST(PCRE_PRERELEASE)  AC_SUBST(PCRE_PRERELEASE)
# Line 37  then Line 105  then
105    htmldir='${docdir}/html'    htmldir='${docdir}/html'
106  fi  fi
107    
108  # Handle --disable-cpp  # Handle --disable-pcre8 (enabled by default)
109    AC_ARG_ENABLE(pcre8,
110                  AS_HELP_STRING([--disable-pcre8],
111                                 [enable 8 bit character support]),
112                  , enable_pcre8=unset)
113    AC_SUBST(enable_pcre8)
114    
115    # Handle --enable-pcre16 (disabled by default)
116    AC_ARG_ENABLE(pcre16,
117                  AS_HELP_STRING([--enable-pcre16],
118                                 [enable 16 bit character support]),
119                  , enable_pcre16=unset)
120    AC_SUBST(enable_pcre16)
121    
122    # Handle --disable-cpp. The substitution of enable_cpp is needed for use in
123    # pcre-config.
124  AC_ARG_ENABLE(cpp,  AC_ARG_ENABLE(cpp,
125                AS_HELP_STRING([--disable-cpp],                AS_HELP_STRING([--disable-cpp],
126                               [disable C++ support]),                               [disable C++ support]),
127                , enable_cpp=yes)                , enable_cpp=unset)
128    AC_SUBST(enable_cpp)
129    
130    # Handle --enable-jit (disabled by default)
131    AC_ARG_ENABLE(jit,
132                  AS_HELP_STRING([--enable-jit],
133                                 [enable Just-In-Time compiling support]),
134                  , enable_jit=no)
135    
136    # Handle --disable-pcregrep-jit (enabled by default)
137    AC_ARG_ENABLE(pcregrep-jit,
138                  AS_HELP_STRING([--disable-pcregrep-jit],
139                                 [disable JIT support in pcregrep]),
140                  , enable_pcregrep_jit=yes)
141    
142    # Handle --enable-rebuild-chartables
143    AC_ARG_ENABLE(rebuild-chartables,
144                  AS_HELP_STRING([--enable-rebuild-chartables],
145                                 [rebuild character tables in current locale]),
146                  , enable_rebuild_chartables=no)
147    
148  # Handle --enable-utf8 (disabled by default)  # Handle --enable-utf8 (disabled by default)
149  AC_ARG_ENABLE(utf8,  AC_ARG_ENABLE(utf8,
150                AS_HELP_STRING([--enable-utf8],                AS_HELP_STRING([--enable-utf8],
151                               [enable UTF-8 support]),                               [another name for --enable-utf. Kept only for compatibility reasons]),
152                , enable_utf8=unset)                , enable_utf8=unset)
153    
154    # Handle --enable-utf (disabled by default)
155    AC_ARG_ENABLE(utf,
156                  AS_HELP_STRING([--enable-utf],
157                                 [enable UTF-8/16 support (incompatible with --enable-ebcdic)]),
158                  , enable_utf=unset)
159    
160  # Handle --enable-unicode-properties  # Handle --enable-unicode-properties
161  AC_ARG_ENABLE(unicode-properties,  AC_ARG_ENABLE(unicode-properties,
162                AS_HELP_STRING([--enable-unicode-properties],                AS_HELP_STRING([--enable-unicode-properties],
163                               [enable Unicode properties support (implies --enable-utf8)]),                               [enable Unicode properties support (implies --enable-utf)]),
164                , enable_unicode_properties=no)                , enable_unicode_properties=no)
165    
166  # Handle --enable-newline=NL  # Handle --enable-newline=NL
167  dnl AC_ARG_ENABLE(newline,  dnl AC_ARG_ENABLE(newline,
168  dnl               AS_HELP_STRING([--enable-newline=NL],  dnl               AS_HELP_STRING([--enable-newline=NL],
169  dnl                              [use NL as newline (lf, cr, crlf, any; default=lf)]),  dnl                              [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]),
170  dnl               , enable_newline=lf)  dnl               , enable_newline=lf)
171    
172  # Separate newline options  # Separate newline options
# Line 75  AC_ARG_ENABLE(newline-is-crlf, Line 183  AC_ARG_ENABLE(newline-is-crlf,
183                AS_HELP_STRING([--enable-newline-is-crlf],                AS_HELP_STRING([--enable-newline-is-crlf],
184                               [use CRLF as newline sequence]),                               [use CRLF as newline sequence]),
185                ac_pcre_newline=crlf)                ac_pcre_newline=crlf)
186    AC_ARG_ENABLE(newline-is-anycrlf,
187                  AS_HELP_STRING([--enable-newline-is-anycrlf],
188                                 [use CR, LF, or CRLF as newline sequence]),
189                  ac_pcre_newline=anycrlf)
190  AC_ARG_ENABLE(newline-is-any,  AC_ARG_ENABLE(newline-is-any,
191                AS_HELP_STRING([--enable-newline-is-any],                AS_HELP_STRING([--enable-newline-is-any],
192                               [use any valid Unicode newline sequence]),                               [use any valid Unicode newline sequence]),
193                ac_pcre_newline=any)                ac_pcre_newline=any)
194  enable_newline="$ac_pcre_newline"  enable_newline="$ac_pcre_newline"
195    
196    # Handle --enable-bsr-anycrlf
197    AC_ARG_ENABLE(bsr-anycrlf,
198                  AS_HELP_STRING([--enable-bsr-anycrlf],
199                                 [\R matches only CR, LF, CRLF by default]),
200                  , enable_bsr_anycrlf=no)
201    
202  # Handle --enable-ebcdic  # Handle --enable-ebcdic
203  AC_ARG_ENABLE(ebcdic,  AC_ARG_ENABLE(ebcdic,
204                AS_HELP_STRING([--enable-ebcdic],                AS_HELP_STRING([--enable-ebcdic],
205                               [assume EBCDIC coding rather than ASCII]),                               [assume EBCDIC coding rather than ASCII; incompatible with --enable-utf; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
206                , enable_ebcdic=no)                , enable_ebcdic=no)
207    
208  # Handle --disable-stack-for-recursion  # Handle --disable-stack-for-recursion
# Line 93  AC_ARG_ENABLE(stack-for-recursion, Line 211  AC_ARG_ENABLE(stack-for-recursion,
211                               [don't use stack recursion when matching]),                               [don't use stack recursion when matching]),
212                , enable_stack_for_recursion=yes)                , enable_stack_for_recursion=yes)
213    
214    # Handle --enable-pcregrep-libz
215    AC_ARG_ENABLE(pcregrep-libz,
216                  AS_HELP_STRING([--enable-pcregrep-libz],
217                                 [link pcregrep with libz to handle .gz files]),
218                  , enable_pcregrep_libz=no)
219    
220    # Handle --enable-pcregrep-libbz2
221    AC_ARG_ENABLE(pcregrep-libbz2,
222                  AS_HELP_STRING([--enable-pcregrep-libbz2],
223                                 [link pcregrep with libbz2 to handle .bz2 files]),
224                  , enable_pcregrep_libbz2=no)
225    
226    # Handle --with-pcregrep-bufsize=N
227    AC_ARG_WITH(pcregrep-bufsize,
228                  AS_HELP_STRING([--with-pcregrep-bufsize=N],
229                                 [pcregrep buffer size (default=20480)]),
230                  , with_pcregrep_bufsize=20480)
231    
232    # Handle --enable-pcretest-libreadline
233    AC_ARG_ENABLE(pcretest-libreadline,
234                  AS_HELP_STRING([--enable-pcretest-libreadline],
235                                 [link pcretest with libreadline]),
236                  , enable_pcretest_libreadline=no)
237    
238  # Handle --with-posix-malloc-threshold=NBYTES  # Handle --with-posix-malloc-threshold=NBYTES
239  AC_ARG_WITH(posix-malloc-threshold,  AC_ARG_WITH(posix-malloc-threshold,
240              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
# Line 124  AC_ARG_WITH(match-limit-recursion, Line 266  AC_ARG_WITH(match-limit-recursion,
266                             [default limit on internal recursion (default=MATCH_LIMIT)]),                             [default limit on internal recursion (default=MATCH_LIMIT)]),
267              , with_match_limit_recursion=MATCH_LIMIT)              , with_match_limit_recursion=MATCH_LIMIT)
268    
269  # Make sure that if enable_unicode_properties was set, that UTF-8 support  # Copy enable_utf8 value to enable_utf for compatibility reasons
270  # is enabled.  if test "x$enable_utf8" != "xunset"
271  #  then
272      if test "x$enable_utf" != "xunset"
273      then
274        AC_MSG_ERROR([--enable/disable-utf8 is kept only for compatibility reasons and its value is copied to --enable/disable-utf. Newer code must use --enable/disable-utf alone.])
275      fi
276      enable_utf=$enable_utf8
277    fi
278    
279    # Set the default value for pcre8
280    if test "x$enable_pcre8" = "xunset"
281    then
282      enable_pcre8=yes
283    fi
284    
285    # Set the default value for pcre16
286    if test "x$enable_pcre16" = "xunset"
287    then
288      enable_pcre16=no
289    fi
290    
291    # Make sure enable_pcre8 or enable_pcre16 was set
292    if test "x$enable_pcre8$enable_pcre16" = "xnono"
293    then
294      AC_MSG_ERROR([Either 8 or 16 bit (or both) pcre library must be enabled])
295    fi
296    
297    # Make sure that if enable_unicode_properties was set, that UTF support is enabled.
298  if test "x$enable_unicode_properties" = "xyes"  if test "x$enable_unicode_properties" = "xyes"
299  then  then
300    if test "x$enable_utf8" = "xno"    if test "x$enable_utf" = "xno"
301    then    then
302      AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])      AC_MSG_ERROR([support for Unicode properties requires UTF-8/16 support])
303    fi    fi
304    enable_utf8=yes    enable_utf=yes
305  fi  fi
306    
307  if test "x$enable_utf8" = "xunset"  # enable_utf is disabled by default.
308    if test "x$enable_utf" = "xunset"
309  then  then
310    enable_utf8=no    enable_utf=no
311    fi
312    
313    # enable_cpp copies the value of enable_pcre8 by default
314    if test "x$enable_cpp" = "xunset"
315    then
316      enable_cpp=$enable_pcre8
317    fi
318    
319    # Make sure that if enable_cpp was set, that enable_pcre8 support is enabled
320    if test "x$enable_cpp" = "xyes"
321    then
322      if test "x$enable_pcre8" = "xno"
323      then
324        AC_MSG_ERROR([C++ library requires pcre library with 8 bit characters])
325      fi
326    fi
327    
328    # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
329    # Also check that UTF support is not requested, because PCRE cannot handle
330    # EBCDIC and UTF in the same build. To do so it would need to use different
331    # character constants depending on the mode.
332    #
333    if test "x$enable_ebcdic" = "xyes"
334    then
335      enable_rebuild_chartables=yes
336      if test "x$enable_utf" = "xyes"
337      then
338        AC_MSG_ERROR([support for EBCDIC and UTF-8/16 cannot be enabled at the same time])
339      fi
340  fi  fi
341    
342  # Convert the newline identifier into the appropriate integer value.  # Convert the newline identifier into the appropriate integer value.
343  case "$enable_newline" in  case "$enable_newline" in
344    lf)   ac_pcre_newline_value=10   ;;    lf)      ac_pcre_newline_value=10   ;;
345    cr)   ac_pcre_newline_value=13   ;;    cr)      ac_pcre_newline_value=13   ;;
346    crlf) ac_pcre_newline_value=3338 ;;    crlf)    ac_pcre_newline_value=3338 ;;
347    any)  ac_pcre_newline_value=-1   ;;    anycrlf) ac_pcre_newline_value=-2   ;;
348      any)     ac_pcre_newline_value=-1   ;;
349    *)    *)
350    AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])    AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
351    ;;    ;;
# Line 161  case "$with_link_size" in Line 360  case "$with_link_size" in
360  esac  esac
361    
362  AH_TOP([  AH_TOP([
363  /* On Unix-like systems config.in is converted by "configure" into  /* On Unix-like systems config.h.in is converted by "configure" into config.h.
364  config.h.  Some other environments also support the use of "configure".  Some other environments also support the use of "configure". PCRE is written in
365  PCRE is written in Standard C, but there are a few non-standard things  Standard C, but there are a few non-standard things it can cope with, allowing
366  it can cope with, allowing it to run on SunOS4 and other "close to  it to run on SunOS4 and other "close to standard" systems.
367  standard" systems.  
368    If you are going to build PCRE "by hand" on a system without "configure" you
369  On a non-Unix-like system you should just copy this file into config.h,  should copy the distributed config.h.generic to config.h, and then set up the
370  and set up the macros the way you need them.  You should normally change  macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to
371  the definitions of HAVE_STRERROR and HAVE_MEMMOVE to 1.  Unfortunately,  all of your compile commands, so that config.h is included at the start of
372  because of the way autoconf works, these cannot be made the defaults.  every source.
373  If your system has bcopy() and not memmove(), change the definition of  
374  HAVE_BCOPY instead of HAVE_MEMMOVE.  If your system has neither bcopy()  Alternatively, you can avoid editing by using -D on the compiler command line
375  nor memmove(), leave them both as 0; an emulation function will be  to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
376  used. */])  
377    PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
378    HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
379    them both to 0; an emulation function will be used. */])
380    
381  # Checks for header files.  # Checks for header files.
382  AC_HEADER_STDC  AC_HEADER_STDC
# Line 187  if test "x$enable_cpp" = "xyes" -a -n "$ Line 389  if test "x$enable_cpp" = "xyes" -a -n "$
389  then  then
390  AC_LANG_PUSH(C++)  AC_LANG_PUSH(C++)
391    
392    # Older versions of pcre defined pcrecpp::no_arg, but in new versions
393    # it's called pcrecpp::RE::no_arg.  For backwards ABI compatibility,
394    # we want to make one an alias for the other.  Different systems do
395    # this in different ways.  Some systems, for instance, can do it via
396    # a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
397    OLD_LDFLAGS="$LDFLAGS"
398    for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
399                "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
400      AC_MSG_CHECKING([for alias support in the linker])
401      LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
402      # We try to run the linker with this new ld flag.  If the link fails,
403      # we give up and remove the new flag from LDFLAGS.
404      AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace pcrecpp {
405                                        class RE { static int no_arg; };
406                                        int RE::no_arg;
407                                      }],
408                                     [])],
409                     [AC_MSG_RESULT([yes]);
410                      EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
411                      break;],
412                     AC_MSG_RESULT([no]))
413    done
414    LDFLAGS="$OLD_LDFLAGS"
415    
416  # We could be more clever here, given we're doing AC_SUBST with this  # We could be more clever here, given we're doing AC_SUBST with this
417  # (eg set a var to be the name of the include file we want).  But we're not  # (eg set a var to be the name of the include file we want). But we're not
418  # so it's easy to change back to 'regular' autoconf vars if we needed to.  # so it's easy to change back to 'regular' autoconf vars if we needed to.
419  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
420                           [pcre_have_cpp_headers="0"])                           [pcre_have_cpp_headers="0"])
# Line 196  AC_CHECK_HEADERS(bits/type_traits.h, [pc Line 422  AC_CHECK_HEADERS(bits/type_traits.h, [pc
422                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
423  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
424                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
425    
426    # (This isn't c++-specific, but is only used in pcrecpp.cc, so try this
427    # in a c++ context.  This matters becuase strtoimax is C99 and may not
428    # be supported by the C++ compiler.)
429    # Figure out how to create a longlong from a string: strtoll and
430    # equiv.  It's not enough to call AC_CHECK_FUNCS: hpux has a
431    # strtoll, for instance, but it only takes 2 args instead of 3!
432    # We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex.
433    AH_TEMPLATE(HAVE_STRTOQ, [Define to 1 if you have `strtoq'.])
434    AH_TEMPLATE(HAVE_STRTOLL, [Define to 1 if you have `strtoll'.])
435    AH_TEMPLATE(HAVE__STRTOI64, [Define to 1 if you have `_strtoi64'.])
436    AH_TEMPLATE(HAVE_STRTOIMAX, [Define to 1 if you have `strtoimax'.])
437    have_strto_fn=0
438    for fn in strtoq strtoll _strtoi64 strtoimax; do
439      AC_MSG_CHECKING([for $fn])
440      if test "$fn" = strtoimax; then
441        include=stdint.h
442      else
443        include=stdlib.h
444      fi
445      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <$include>],
446                                        [char* e; return $fn("100", &e, 10)])],
447                        [AC_MSG_RESULT(yes)
448                         AC_DEFINE_UNQUOTED(HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`, 1,
449                                            [Define to 1 if you have `$fn'.])
450                         have_strto_fn=1
451                         break],
452                        [AC_MSG_RESULT(no)])
453    done
454    
455    if test "$have_strto_fn" = 1; then
456      AC_CHECK_TYPES([long long],
457                     [pcre_have_long_long="1"],
458                     [pcre_have_long_long="0"])
459      AC_CHECK_TYPES([unsigned long long],
460                     [pcre_have_ulong_long="1"],
461                     [pcre_have_ulong_long="0"])
462    else
463      pcre_have_long_long="0"
464      pcre_have_ulong_long="0"
465    fi
466    AC_SUBST(pcre_have_long_long)
467    AC_SUBST(pcre_have_ulong_long)
468    
469  AC_LANG_POP  AC_LANG_POP
470  fi  fi
471  # Using AC_SUBST eliminates the need to include config.h in a public .h file  # Using AC_SUBST eliminates the need to include config.h in a public .h file
# Line 203  AC_SUBST(pcre_have_type_traits) Line 473  AC_SUBST(pcre_have_type_traits)
473  AC_SUBST(pcre_have_bits_type_traits)  AC_SUBST(pcre_have_bits_type_traits)
474    
475  # Conditional compilation  # Conditional compilation
476    AM_CONDITIONAL(WITH_PCRE8, test "x$enable_pcre8" = "xyes")
477    AM_CONDITIONAL(WITH_PCRE16, test "x$enable_pcre16" = "xyes")
478  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
479    AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
480    AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
481    AM_CONDITIONAL(WITH_UTF, test "x$enable_utf" = "xyes")
482    
483  # Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
484    
485  AC_C_CONST  AC_C_CONST
486  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
487    
 AC_CHECK_TYPES([long long],  
                [pcre_have_long_long="1"],  
                [pcre_have_long_long="0"])  
 AC_CHECK_TYPES([unsigned long long],  
                [pcre_have_ulong_long="1"],  
                [pcre_have_ulong_long="0"])  
 AC_SUBST(pcre_have_long_long)  
 AC_SUBST(pcre_have_ulong_long)  
   
488  # Checks for library functions.  # Checks for library functions.
489    
490  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror)
491    
492    # Check for the availability of libz (aka zlib)
493    
494    AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
495    AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
496    
497    # Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
498    # as for libz. However, this had the following problem, diagnosed and fixed by
499    # a user:
500    #
501    #   - libbz2 uses the Pascal calling convention (WINAPI) for the functions
502    #     under Win32.
503    #   - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
504    #     therefore missing the function definition.
505    #   - The compiler thus generates a "C" signature for the test function.
506    #   - The linker fails to find the "C" function.
507    #   - PCRE fails to configure if asked to do so against libbz2.
508    #
509    # Solution:
510    #
511    #   - Replace the AC_CHECK_LIB test with a custom test.
512    
513    AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
514    # Original test
515    # AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
516    #
517    # Custom test follows
518    
519    AC_MSG_CHECKING([for libbz2])
520    OLD_LIBS="$LIBS"
521    LIBS="$LIBS -lbz2"
522    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
523    #ifdef HAVE_BZLIB_H
524    #include <bzlib.h>
525    #endif]],
526    [[return (int)BZ2_bzopen("conftest", "rb");]])],
527    [AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;],
528    AC_MSG_RESULT([no]))
529    LIBS="$OLD_LIBS"
530    
531    # Check for the availabiity of libreadline
532    
533    AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
534    AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
535    AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1])
536    
537  # This facilitates -ansi builds under Linux  # This facilitates -ansi builds under Linux
538  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
539    
540    PCRE_STATIC_CFLAG=""
541  if test "x$enable_shared" = "xno" ; then  if test "x$enable_shared" = "xno" ; then
542    AC_DEFINE([PCRE_STATIC], [1], [    AC_DEFINE([PCRE_STATIC], [1], [
543      Define if linking statically (TODO: make nice with Libtool)])      Define if linking statically (TODO: make nice with Libtool)])
544      PCRE_STATIC_CFLAG="-DPCRE_STATIC"
545  fi  fi
546    AC_SUBST(PCRE_STATIC_CFLAG)
547    
548  # Here is where pcre specific defines are handled  # Here is where pcre specific defines are handled
549    
550  if test "$enable_utf8" = "yes"; then  if test "$enable_pcre8" = "yes"; then
551    AC_DEFINE([SUPPORT_UTF8], [], [    AC_DEFINE([SUPPORT_PCRE8], [], [
552      Define to enable support for the UTF-8 Unicode encoding.])      Define to enable the 8 bit PCRE library.])
553    fi
554    
555    if test "$enable_pcre16" = "yes"; then
556      AC_DEFINE([SUPPORT_PCRE16], [], [
557        Define to enable the 16 bit PCRE library.])
558    fi
559    
560    if test "$enable_jit" = "yes"; then
561      AC_DEFINE([SUPPORT_JIT], [], [
562        Define to enable support for Just-In-Time compiling.])
563    else
564      enable_pcregrep_jit="no"
565    fi
566    
567    if test "$enable_pcregrep_jit" = "yes"; then
568      AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [
569        Define to enable JIT support in pcregrep.])
570    fi
571    
572    if test "$enable_utf" = "yes"; then
573      AC_DEFINE([SUPPORT_UTF], [], [
574        Define to enable support for the UTF-8/16 Unicode encoding. This
575        will work even in an EBCDIC environment, but it is incompatible
576        with the EBCDIC macro. That is, PCRE can support *either* EBCDIC
577        code *or* ASCII/UTF-8/16, but not both at once.])
578  fi  fi
579    
580  if test "$enable_unicode_properties" = "yes"; then  if test "$enable_unicode_properties" = "yes"; then
581    AC_DEFINE([SUPPORT_UCP], [], [    AC_DEFINE([SUPPORT_UCP], [], [
582      Define to enable support for Unicode properties])      Define to enable support for Unicode properties.])
583  fi  fi
584    
585  if test "$enable_stack_for_recursion" = "no"; then  if test "$enable_stack_for_recursion" = "no"; then
586    AC_DEFINE([NO_RECURSE], [], [    AC_DEFINE([NO_RECURSE], [], [
587      PCRE uses recursive function calls to handle backtracking while      PCRE uses recursive function calls to handle backtracking while
588      matching.  This can sometimes be a problem on systems that have      matching. This can sometimes be a problem on systems that have
589      stacks of limited size.  Define NO_RECURSE to get a version that      stacks of limited size. Define NO_RECURSE to get a version that
590      doesn't use recursion in the match() function; instead it creates      doesn't use recursion in the match() function; instead it creates
591      its own stack by steam using pcre_recurse_malloc() to obtain memory      its own stack by steam using pcre_recurse_malloc() to obtain memory
592      from the heap. For more detail, see the comments and other stuff      from the heap. For more detail, see the comments and other stuff
# Line 256  if test "$enable_stack_for_recursion" = Line 595  if test "$enable_stack_for_recursion" =
595      (use --disable-stack-for-recursion).])      (use --disable-stack-for-recursion).])
596  fi  fi
597    
598    if test "$enable_pcregrep_libz" = "yes"; then
599      AC_DEFINE([SUPPORT_LIBZ], [], [
600        Define to allow pcregrep to be linked with libz, so that it is
601        able to handle .gz files.])
602    fi
603    
604    if test "$enable_pcregrep_libbz2" = "yes"; then
605      AC_DEFINE([SUPPORT_LIBBZ2], [], [
606        Define to allow pcregrep to be linked with libbz2, so that it is
607        able to handle .bz2 files.])
608    fi
609    
610    if test $with_pcregrep_bufsize -lt 8192 ; then
611      with_pcregrep_bufsize="8192"
612    fi
613    
614    AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [
615      The value of PCREGREP_BUFSIZE determines the size of buffer used by
616      pcregrep to hold parts of the file it is searching. On systems that
617      support it, "configure" can be used to override the default, which is
618      8192. This is also the minimum value. The actual amount of memory used by
619      pcregrep is three times this number, because it allows for the buffering of
620      "before" and "after" lines.])
621    
622    if test "$enable_pcretest_libreadline" = "yes"; then
623      AC_DEFINE([SUPPORT_LIBREADLINE], [], [
624        Define to allow pcretest to be linked with libreadline.])
625    fi
626    
627  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
628    The value of NEWLINE determines the newline character. The default is    The value of NEWLINE determines the newline character sequence. On
629    to leave it up to the compiler, but some sites want to force a    systems that support it, "configure" can be used to override the
630    particular value.  On Unix-like systems, "configure" can be used to    default, which is 10. The possible values are 10 (LF), 13 (CR),
631    override this default.])    3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).])
632    
633    if test "$enable_bsr_anycrlf" = "yes"; then
634      AC_DEFINE([BSR_ANYCRLF], [], [
635        By default, the \R escape sequence matches any Unicode line ending
636        character or sequence of characters. If BSR_ANYCRLF is defined, this is
637        changed so that backslash-R matches only CR, LF, or CRLF. The build-
638        time default can be overridden by the user of PCRE at runtime. On
639        systems that support it, "configure" can be used to override the
640        default.])
641    fi
642    
643  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
644    The value of LINK_SIZE determines the number of bytes used to store    The value of LINK_SIZE determines the number of bytes used to store
# Line 284  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO Line 662  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO
662  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
663    The value of MATCH_LIMIT determines the default number of times the    The value of MATCH_LIMIT determines the default number of times the
664    internal match() function can be called during a single execution of    internal match() function can be called during a single execution of
665    pcre_exec().  There is a runtime interface for setting a different    pcre_exec(). There is a runtime interface for setting a different
666    limit. The limit exists in order to catch runaway regular    limit. The limit exists in order to catch runaway regular
667    expressions that take for ever to determine that they do not match.    expressions that take for ever to determine that they do not match.
668    The default is set very large so that it does not accidentally catch    The default is set very large so that it does not accidentally catch
# Line 299  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO Line 677  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO
677    NO_RECURSE is defined) that is used. The value of    NO_RECURSE is defined) that is used. The value of
678    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
679    have any useful effect, it must be less than the value of    have any useful effect, it must be less than the value of
680    MATCH_LIMIT. There is a runtime method for setting a different    MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
681    limit. On systems that support it, "configure" can be used to    There is a runtime method for setting a different limit. On systems
682    override this default default.])    that support it, "configure" can be used to override the default.])
683    
684  AC_DEFINE([MAX_NAME_SIZE], [32], [  AC_DEFINE([MAX_NAME_SIZE], [32], [
685    This limit is parameterized just in case anybody ever wants to    This limit is parameterized just in case anybody ever wants to
# Line 313  AC_DEFINE([MAX_NAME_COUNT], [10000], [ Line 691  AC_DEFINE([MAX_NAME_COUNT], [10000], [
691    change it. Care must be taken if it is increased, because it guards    change it. Care must be taken if it is increased, because it guards
692    against integer overflow caused by enormously large patterns.])    against integer overflow caused by enormously large patterns.])
693    
694  AC_DEFINE([MAX_DUPLENGTH], [30000], [  AH_VERBATIM([PCRE_EXP_DEFN], [
   This limit is parameterized just in case anybody ever wants to  
   change it. Care must be taken if it is increased, because it guards  
   against integer overflow caused by enormously large patterns.])  
   
 AH_VERBATIM([PCRE_DATA_SCOPE], [  
695  /* If you are compiling for a system other than a Unix-like system or  /* If you are compiling for a system other than a Unix-like system or
696     Win32, and it needs some magic to be inserted before the definition     Win32, and it needs some magic to be inserted before the definition
697     of a function that is exported by the library, define this macro to     of a function that is exported by the library, define this macro to
# Line 328  AH_VERBATIM([PCRE_DATA_SCOPE], [ Line 701  AH_VERBATIM([PCRE_DATA_SCOPE], [
701     every exported function that is part of the external API. It does     every exported function that is part of the external API. It does
702     not appear on functions that are "external" in the C sense, but     not appear on functions that are "external" in the C sense, but
703     which are internal to the library. */     which are internal to the library. */
704  #undef PCRE_DATA_SCOPE])  #undef PCRE_EXP_DEFN])
705    
706  if test "$enable_ebcdic" = "yes"; then  if test "$enable_ebcdic" = "yes"; then
707    AC_DEFINE_UNQUOTED([EBCDIC], [], [    AC_DEFINE_UNQUOTED([EBCDIC], [], [
708      If you are compiling for a system that uses EBCDIC instead of ASCII      If you are compiling for a system that uses EBCDIC instead of ASCII
709      character codes, define this macro as 1. On systems that can use      character codes, define this macro as 1. On systems that can use
710      "configure", this can be done via --enable-ebcdic.])      "configure", this can be done via --enable-ebcdic. PCRE will then
711        assume that all input strings are in EBCDIC. If you do not define
712        this macro, PCRE will assume input strings are ASCII or UTF-8/16
713        Unicode. It is not possible to build a version of PCRE that
714        supports both EBCDIC and UTF-8/16.])
715  fi  fi
716    
 # Here is where pcre specific substs are handled  
 # These 3 are only used by RunTest.in.  
 # TODO: remove once RunTest uses pcretest -C instead.  
 AC_SUBST(LINK_SIZE, $with_link_size)  
 AC_SUBST(UTF8, $enable_utf8)  
 AC_SUBST(UCP, $enable_unicode_properties)  
   
717  # Platform specific issues  # Platform specific issues
718  NO_UNDEFINED=  NO_UNDEFINED=
719  EXPORT_ALL_SYMBOLS=  EXPORT_ALL_SYMBOLS=
# Line 359  esac Line 729  esac
729  # The extra LDFLAGS for each particular library  # The extra LDFLAGS for each particular library
730  # (Note: The libpcre*_version bits are m4 variables, assigned above)  # (Note: The libpcre*_version bits are m4 variables, assigned above)
731    
732  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"  EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
733                           $NO_UNDEFINED -version-info libpcre_version"
734    
735    EXTRA_LIBPCRE16_LDFLAGS="$EXTRA_LIBPCRE16_LDFLAGS \
736                           $NO_UNDEFINED -version-info libpcre16_version"
737    
738  EXTRA_LIBPCREPOSIX_LDFLAGS="$NO_UNDEFINED -version-info libpcreposix_version"  EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
739                                $NO_UNDEFINED -version-info libpcreposix_version"
740    
741  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
742                              $NO_UNDEFINED -version-info libpcrecpp_version \
743                              $EXPORT_ALL_SYMBOLS"
744    
745  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
746    AC_SUBST(EXTRA_LIBPCRE16_LDFLAGS)
747  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
748  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
749    
750  # When we run 'make distcheck', use these arguments.  # When we run 'make distcheck', use these arguments.
751  DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"  DISTCHECK_CONFIGURE_FLAGS="--enable-pcre16 --enable-jit --enable-cpp --enable-unicode-properties"
752  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
753    
754    # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
755    # specified, the relevant library is available.
756    
757    if test "$enable_pcregrep_libz" = "yes"; then
758      if test "$HAVE_ZLIB_H" != "1"; then
759        echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
760        exit 1
761      fi
762      if test "$HAVE_LIBZ" != "1"; then
763        echo "** Cannot --enable-pcregrep-libz because libz was not found"
764        exit 1
765      fi
766      LIBZ="-lz"
767    fi
768    AC_SUBST(LIBZ)
769    
770    if test "$enable_pcregrep_libbz2" = "yes"; then
771      if test "$HAVE_BZLIB_H" != "1"; then
772        echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
773        exit 1
774      fi
775      if test "$HAVE_LIBBZ2" != "1"; then
776        echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
777        exit 1
778      fi
779      LIBBZ2="-lbz2"
780    fi
781    AC_SUBST(LIBBZ2)
782    
783    # Similarly for --enable-pcretest-readline
784    
785    if test "$enable_pcretest_libreadline" = "yes"; then
786      if test "$HAVE_READLINE_H" != "1"; then
787        echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
788        exit 1
789      fi
790      if test "$HAVE_HISTORY_H" != "1"; then
791        echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
792        exit 1
793      fi
794      LIBREADLINE="-lreadline"
795    fi
796    AC_SUBST(LIBREADLINE)
797    
798  # Produce these files, in addition to config.h.  # Produce these files, in addition to config.h.
799  AC_CONFIG_FILES(  AC_CONFIG_FILES(
800          Makefile          Makefile
         RunGrepTest  
         RunTest  
801          libpcre.pc          libpcre.pc
802            libpcre16.pc
803            libpcreposix.pc
804          libpcrecpp.pc          libpcrecpp.pc
805          pcre-config          pcre-config
806          pcre.h          pcre.h
# Line 387  AC_CONFIG_FILES( Line 809  AC_CONFIG_FILES(
809  )  )
810    
811  # Make the generated script files executable.  # Make the generated script files executable.
812  AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])  AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config])
813    
814    # Make sure that pcre_chartables.c is removed in case the method for
815    # creating it was changed by reconfiguration.
816    AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c])
817    
818  AC_OUTPUT  AC_OUTPUT
819    
820  # Print out a nice little message after configure is run displaying your  # Print out a nice little message after configure is run displaying your
821  # chosen options.  # chosen options.
822  #  
823  cat <<EOF  cat <<EOF
824    
825  $PACKAGE-$VERSION configuration summary:  $PACKAGE-$VERSION configuration summary:
826    
827      Install prefix ......... : ${prefix}      Install prefix .................. : ${prefix}
828      C preprocessor ......... : ${CPP}      C preprocessor .................. : ${CPP}
829      C compiler ............. : ${CC}      C compiler ...................... : ${CC}
830      C++ preprocessor ....... : ${CXXCPP}      C++ preprocessor ................ : ${CXXCPP}
831      C++ compiler ........... : ${CXX}      C++ compiler .................... : ${CXX}
832      Linker ................. : ${LD}      Linker .......................... : ${LD}
833      C preprocessor flags ... : ${CPPFLAGS}      C preprocessor flags ............ : ${CPPFLAGS}
834      C compiler flags ....... : ${CFLAGS}      C compiler flags ................ : ${CFLAGS}
835      C++ compiler flags ..... : ${CXXFLAGS}      C++ compiler flags .............. : ${CXXFLAGS}
836      Linker flags ........... : ${LDFLAGS}      Linker flags .................... : ${LDFLAGS}
837      Extra libraries ........ : ${LIBS}      Extra libraries ................. : ${LIBS}
838    
839      Build C++ library ...... : ${enable_cpp}      Build 8 bit pcre library ........ : ${enable_pcre8}
840      Enable UTF-8 support ... : ${enable_utf8}      Build 16 bit pcre library ....... : ${enable_pcre16}
841      Unicode properties ..... : ${enable_unicode_properties}      Build C++ library ............... : ${enable_cpp}
842      Newline char/sequence .. : ${enable_newline}      Enable JIT compiling support .... : ${enable_jit}
843      EBCDIC coding .......... : ${enable_ebcdic}      Enable UTF-8/16 support ......... : ${enable_utf}
844      Use stack recursion .... : ${enable_stack_for_recursion}      Unicode properties .............. : ${enable_unicode_properties}
845      POSIX mem threshold .... : ${with_posix_malloc_threshold}      Newline char/sequence ........... : ${enable_newline}
846      Internal link size ..... : ${with_link_size}      \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
847      Match limit ............ : ${with_match_limit}      EBCDIC coding ................... : ${enable_ebcdic}
848      Match limit recursion .. : ${with_match_limit_recursion}      Rebuild char tables ............. : ${enable_rebuild_chartables}
849      Build shared libs ...... : ${enable_shared}      Use stack recursion ............. : ${enable_stack_for_recursion}
850      Build static libs ...... : ${enable_static}      POSIX mem threshold ............. : ${with_posix_malloc_threshold}
851        Internal link size .............. : ${with_link_size}
852        Match limit ..................... : ${with_match_limit}
853        Match limit recursion ........... : ${with_match_limit_recursion}
854        Build shared libs ............... : ${enable_shared}
855        Build static libs ............... : ${enable_static}
856        Use JIT in pcregrep ............. : ${enable_pcregrep_jit}
857        Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
858        Link pcregrep with libz ......... : ${enable_pcregrep_libz}
859        Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
860        Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
861    
862  EOF  EOF
863    

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