/[pcre]/code/branches/pcre16/configure.ac
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revision 97 by ph10, Mon Mar 5 12:36:47 2007 UTC revision 376 by ph10, Sun Mar 1 12:00:59 2009 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    dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with
4    dnl leading zeros, because they may be treated as octal constants. The
5    dnl PCRE_PRERELEASE feature is for identifying release candidates. It might
6    dnl be defined as -RC2, for example. For real releases, it should be defined
7    dnl empty.
8    
9  m4_define(pcre_major, [7])  m4_define(pcre_major, [7])
10  m4_define(pcre_minor, [1])  m4_define(pcre_minor, [9])
11  m4_define(pcre_prerelease, [-RC0])  m4_define(pcre_prerelease, [-RC1])
12  m4_define(pcre_date, [2006-12-18])  m4_define(pcre_date, [2009-02-27])
13    
14  # Libtool shared library interface versions (current:revision:age)  # Libtool shared library interface versions (current:revision:age)
15  m4_define(libpcre_version, [0:1:0])  m4_define(libpcre_version, [0:1:0])
# Line 15  AC_INIT(PCRE, pcre_major.pcre_minor[]pcr Line 21  AC_INIT(PCRE, pcre_major.pcre_minor[]pcr
21  AC_CONFIG_SRCDIR([pcre.h.in])  AC_CONFIG_SRCDIR([pcre.h.in])
22  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
23  AC_CONFIG_HEADERS(config.h)  AC_CONFIG_HEADERS(config.h)
24    
25    # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
26    # "-g" for any other compiler. There doesn't seem to be a standard way of
27    # getting rid of the -g (which I don't think is needed for a production
28    # library). This fudge seems to achieve the necessary. First, we remember the
29    # externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and
30    # AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not
31    # set, they will be set to Autoconf's defaults. Afterwards, if the original
32    # values were not set, remove the -g from the Autoconf defaults.
33    # (PH 02-May-07)
34    
35    remember_set_CFLAGS="$CFLAGS"
36    remember_set_CXXFLAGS="$CXXFLAGS"
37    
38  AC_PROG_CC  AC_PROG_CC
39  AC_PROG_CXX  AC_PROG_CXX
40    
41    if test "x$remember_set_CFLAGS" = "x"
42    then
43      if test "$CFLAGS" = "-g -O2"
44      then
45        CFLAGS="-O2"
46      elif test "$CFLAGS" = "-g"
47      then
48        CFLAGS=""
49      fi
50    fi
51    
52    if test "x$remember_set_CXXFLAGS" = "x"
53    then
54      if test "$CXXFLAGS" = "-g -O2"
55      then
56        CXXFLAGS="-O2"
57      elif test "$CXXFLAGS" = "-g"
58      then
59        CXXFLAGS=""
60      fi
61    fi
62    
63    # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
64    # Check for that case, and just disable c++ code if g++ doesn't run.
65    AC_LANG_PUSH(C++)
66    AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[]),, CXX=""; CXXCP=""; CXXFLAGS="")
67    AC_LANG_POP
68    
69  AC_PROG_INSTALL  AC_PROG_INSTALL
70  AC_LIBTOOL_WIN32_DLL  AC_LIBTOOL_WIN32_DLL
71  AC_PROG_LIBTOOL  AC_PROG_LIBTOOL
72    AC_PROG_LN_S
73    
74  PCRE_MAJOR="pcre_major"  PCRE_MAJOR="pcre_major"
75  PCRE_MINOR="pcre_minor"  PCRE_MINOR="pcre_minor"
# Line 43  AC_ARG_ENABLE(cpp, Line 93  AC_ARG_ENABLE(cpp,
93                               [disable C++ support]),                               [disable C++ support]),
94                , enable_cpp=yes)                , enable_cpp=yes)
95    
96    # Handle --enable-rebuild-chartables
97    AC_ARG_ENABLE(rebuild-chartables,
98                  AS_HELP_STRING([--enable-rebuild-chartables],
99                                 [rebuild character tables in current locale]),
100                  , enable_rebuild_chartables=no)
101    
102  # Handle --enable-utf8 (disabled by default)  # Handle --enable-utf8 (disabled by default)
103  AC_ARG_ENABLE(utf8,  AC_ARG_ENABLE(utf8,
104                AS_HELP_STRING([--enable-utf8],                AS_HELP_STRING([--enable-utf8],
# Line 58  AC_ARG_ENABLE(unicode-properties, Line 114  AC_ARG_ENABLE(unicode-properties,
114  # Handle --enable-newline=NL  # Handle --enable-newline=NL
115  dnl AC_ARG_ENABLE(newline,  dnl AC_ARG_ENABLE(newline,
116  dnl               AS_HELP_STRING([--enable-newline=NL],  dnl               AS_HELP_STRING([--enable-newline=NL],
117  dnl                              [use NL as newline (lf, cr, crlf, any; default=lf)]),  dnl                              [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]),
118  dnl               , enable_newline=lf)  dnl               , enable_newline=lf)
119    
120  # Separate newline options  # Separate newline options
# Line 75  AC_ARG_ENABLE(newline-is-crlf, Line 131  AC_ARG_ENABLE(newline-is-crlf,
131                AS_HELP_STRING([--enable-newline-is-crlf],                AS_HELP_STRING([--enable-newline-is-crlf],
132                               [use CRLF as newline sequence]),                               [use CRLF as newline sequence]),
133                ac_pcre_newline=crlf)                ac_pcre_newline=crlf)
134    AC_ARG_ENABLE(newline-is-anycrlf,
135                  AS_HELP_STRING([--enable-newline-is-anycrlf],
136                                 [use CR, LF, or CRLF as newline sequence]),
137                  ac_pcre_newline=anycrlf)
138  AC_ARG_ENABLE(newline-is-any,  AC_ARG_ENABLE(newline-is-any,
139                AS_HELP_STRING([--enable-newline-is-any],                AS_HELP_STRING([--enable-newline-is-any],
140                               [use any valid Unicode newline sequence]),                               [use any valid Unicode newline sequence]),
141                ac_pcre_newline=any)                ac_pcre_newline=any)
142  enable_newline="$ac_pcre_newline"  enable_newline="$ac_pcre_newline"
143    
144    # Handle --enable-bsr-anycrlf
145    AC_ARG_ENABLE(bsr-anycrlf,
146                  AS_HELP_STRING([--enable-bsr-anycrlf],
147                                 [\R matches only CR, LF, CRLF by default]),
148                  , enable_bsr_anycrlf=no)
149    
150  # Handle --enable-ebcdic  # Handle --enable-ebcdic
151  AC_ARG_ENABLE(ebcdic,  AC_ARG_ENABLE(ebcdic,
152                AS_HELP_STRING([--enable-ebcdic],                AS_HELP_STRING([--enable-ebcdic],
153                               [assume EBCDIC coding rather than ASCII]),                               [assume EBCDIC coding rather than ASCII; use this only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
154                , enable_ebcdic=no)                , enable_ebcdic=no)
155    
156  # Handle --disable-stack-for-recursion  # Handle --disable-stack-for-recursion
# Line 93  AC_ARG_ENABLE(stack-for-recursion, Line 159  AC_ARG_ENABLE(stack-for-recursion,
159                               [don't use stack recursion when matching]),                               [don't use stack recursion when matching]),
160                , enable_stack_for_recursion=yes)                , enable_stack_for_recursion=yes)
161    
162    # Handle --enable-pcregrep-libz
163    AC_ARG_ENABLE(pcregrep-libz,
164                  AS_HELP_STRING([--enable-pcregrep-libz],
165                                 [link pcregrep with libz to handle .gz files]),
166                  , enable_pcregrep_libz=no)
167    
168    # Handle --enable-pcregrep-libbz2
169    AC_ARG_ENABLE(pcregrep-libbz2,
170                  AS_HELP_STRING([--enable-pcregrep-libbz2],
171                                 [link pcregrep with libbz2 to handle .bz2 files]),
172                  , enable_pcregrep_libbz2=no)
173    
174    # Handle --enable-pcretest-libreadline
175    AC_ARG_ENABLE(pcretest-libreadline,
176                  AS_HELP_STRING([--enable-pcretest-libreadline],
177                                 [link pcretest with libreadline]),
178                  , enable_pcretest_libreadline=no)
179    
180  # Handle --with-posix-malloc-threshold=NBYTES  # Handle --with-posix-malloc-threshold=NBYTES
181  AC_ARG_WITH(posix-malloc-threshold,  AC_ARG_WITH(posix-malloc-threshold,
182              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
# Line 141  then Line 225  then
225    enable_utf8=no    enable_utf8=no
226  fi  fi
227    
228    # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
229    #
230    if test "x$enable_ebcdic" = "xyes"
231    then
232      enable_rebuild_chartables=yes
233    fi
234    
235  # Convert the newline identifier into the appropriate integer value.  # Convert the newline identifier into the appropriate integer value.
236  case "$enable_newline" in  case "$enable_newline" in
237    lf)   ac_pcre_newline_value=10   ;;    lf)      ac_pcre_newline_value=10   ;;
238    cr)   ac_pcre_newline_value=13   ;;    cr)      ac_pcre_newline_value=13   ;;
239    crlf) ac_pcre_newline_value=3338 ;;    crlf)    ac_pcre_newline_value=3338 ;;
240    any)  ac_pcre_newline_value=-1   ;;    anycrlf) ac_pcre_newline_value=-2   ;;
241      any)     ac_pcre_newline_value=-1   ;;
242    *)    *)
243    AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])    AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
244    ;;    ;;
# Line 161  case "$with_link_size" in Line 253  case "$with_link_size" in
253  esac  esac
254    
255  AH_TOP([  AH_TOP([
256  /* 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.
257  config.h.  Some other environments also support the use of "configure".  Some other environments also support the use of "configure". PCRE is written in
258  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
259  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.
260  standard" systems.  
261    If you are going to build PCRE "by hand" on a system without "configure" you
262  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
263  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
264  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
265  because of the way autoconf works, these cannot be made the defaults.  every source.
266  If your system has bcopy() and not memmove(), change the definition of  
267  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
268  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.
269  used. */])  
270    PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
271    HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
272    them both to 0; an emulation function will be used. */])
273    
274  # Checks for header files.  # Checks for header files.
275  AC_HEADER_STDC  AC_HEADER_STDC
# Line 187  if test "x$enable_cpp" = "xyes" -a -n "$ Line 282  if test "x$enable_cpp" = "xyes" -a -n "$
282  then  then
283  AC_LANG_PUSH(C++)  AC_LANG_PUSH(C++)
284    
285    # Older versions of pcre defined pcrecpp::no_arg, but in new versions
286    # it's called pcrecpp::RE::no_arg.  For backwards ABI compatibility,
287    # we want to make one an alias for the other.  Different systems do
288    # this in different ways.  Some systems, for instance, can do it via
289    # a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
290    OLD_LDFLAGS="$LDFLAGS"
291    for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
292                "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
293      AC_MSG_CHECKING([for alias support in the linker])
294      LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
295      # We try to run the linker with this new ld flag.  If the link fails,
296      # we give up and remove the new flag from LDFLAGS.
297      AC_LINK_IFELSE(AC_LANG_PROGRAM([namespace pcrecpp {
298                                        class RE { static int no_arg; };
299                                        int RE::no_arg;
300                                      }],
301                                     []),
302                     [AC_MSG_RESULT([yes]);
303                      EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
304                      break;],
305                     AC_MSG_RESULT([no]))
306    done
307    LDFLAGS="$OLD_LDFLAGS"
308    
309  # 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
310  # (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
311  # 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.
312  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
313                           [pcre_have_cpp_headers="0"])                           [pcre_have_cpp_headers="0"])
# Line 196  AC_CHECK_HEADERS(bits/type_traits.h, [pc Line 315  AC_CHECK_HEADERS(bits/type_traits.h, [pc
315                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
316  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
317                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
318    
319  AC_LANG_POP  AC_LANG_POP
320  fi  fi
321  # 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 204  AC_SUBST(pcre_have_bits_type_traits) Line 324  AC_SUBST(pcre_have_bits_type_traits)
324    
325  # Conditional compilation  # Conditional compilation
326  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
327    AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
328    
329  # Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
330    
331  AC_C_CONST  AC_C_CONST
332  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
333    
334  AC_CHECK_TYPES([long long],  pcre_have_strotolonglong=0
335                 [pcre_have_long_long="1"],  AC_CHECK_FUNCS(strtoq strtoll _strtoi64, [pcre_have_strotolonglong="1"; break])
336                 [pcre_have_long_long="0"])  # If we can't convert a string to a long long, pretend we don't even
337  AC_CHECK_TYPES([unsigned long long],  # have a long long.
338                 [pcre_have_ulong_long="1"],  if test $pcre_have_strotolonglong = "0"; then
339                 [pcre_have_ulong_long="0"])     pcre_have_long_long="0"
340       pcre_have_ulong_long="0"
341    else
342      AC_CHECK_TYPES([long long],
343                     [pcre_have_long_long="1"],
344                     [pcre_have_long_long="0"])
345      AC_CHECK_TYPES([unsigned long long],
346                     [pcre_have_ulong_long="1"],
347                     [pcre_have_ulong_long="0"])
348    fi
349  AC_SUBST(pcre_have_long_long)  AC_SUBST(pcre_have_long_long)
350  AC_SUBST(pcre_have_ulong_long)  AC_SUBST(pcre_have_ulong_long)
351    
352  # Checks for library functions.  # Checks for library functions.
353    
354  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror)
355    
356    # Check for the availability of libz (aka zlib)
357    
358    AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
359    AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
360    
361    # Check for the availability of libbz2
362    
363    AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
364    AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
365    
366    # Check for the availabiity of libreadline
367    
368    AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
369    AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
370    AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1])
371    
372  # This facilitates -ansi builds under Linux  # This facilitates -ansi builds under Linux
373  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
# Line 246  fi Line 392  fi
392  if test "$enable_stack_for_recursion" = "no"; then  if test "$enable_stack_for_recursion" = "no"; then
393    AC_DEFINE([NO_RECURSE], [], [    AC_DEFINE([NO_RECURSE], [], [
394      PCRE uses recursive function calls to handle backtracking while      PCRE uses recursive function calls to handle backtracking while
395      matching.  This can sometimes be a problem on systems that have      matching. This can sometimes be a problem on systems that have
396      stacks of limited size.  Define NO_RECURSE to get a version that      stacks of limited size. Define NO_RECURSE to get a version that
397      doesn't use recursion in the match() function; instead it creates      doesn't use recursion in the match() function; instead it creates
398      its own stack by steam using pcre_recurse_malloc() to obtain memory      its own stack by steam using pcre_recurse_malloc() to obtain memory
399      from the heap. For more detail, see the comments and other stuff      from the heap. For more detail, see the comments and other stuff
# Line 256  if test "$enable_stack_for_recursion" = Line 402  if test "$enable_stack_for_recursion" =
402      (use --disable-stack-for-recursion).])      (use --disable-stack-for-recursion).])
403  fi  fi
404    
405    if test "$enable_pcregrep_libz" = "yes"; then
406      AC_DEFINE([SUPPORT_LIBZ], [], [
407        Define to allow pcregrep to be linked with libz, so that it is
408        able to handle .gz files.])
409    fi
410    
411    if test "$enable_pcregrep_libbz2" = "yes"; then
412      AC_DEFINE([SUPPORT_LIBBZ2], [], [
413        Define to allow pcregrep to be linked with libbz2, so that it is
414        able to handle .bz2 files.])
415    fi
416    
417    if test "$enable_pcretest_libreadline" = "yes"; then
418      AC_DEFINE([SUPPORT_LIBREADLINE], [], [
419        Define to allow pcretest to be linked with libreadline.])
420    fi
421    
422  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
423    The value of NEWLINE determines the newline character. The default is    The value of NEWLINE determines the newline character sequence. On
424    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
425    particular value.  On Unix-like systems, "configure" can be used to    default, which is 10. The possible values are 10 (LF), 13 (CR),
426    override this default.])    3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).])
427    
428    if test "$enable_bsr_anycrlf" = "yes"; then
429      AC_DEFINE([BSR_ANYCRLF], [], [
430        By default, the \R escape sequence matches any Unicode line ending
431        character or sequence of characters. If BSR_ANYCRLF is defined, this is
432        changed so that backslash-R matches only CR, LF, or CRLF. The build-
433        time default can be overridden by the user of PCRE at runtime. On
434        systems that support it, "configure" can be used to override the
435        default.])
436    fi
437    
438  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
439    The value of LINK_SIZE determines the number of bytes used to store    The value of LINK_SIZE determines the number of bytes used to store
# Line 284  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO Line 457  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO
457  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
458    The value of MATCH_LIMIT determines the default number of times the    The value of MATCH_LIMIT determines the default number of times the
459    internal match() function can be called during a single execution of    internal match() function can be called during a single execution of
460    pcre_exec().  There is a runtime interface for setting a different    pcre_exec(). There is a runtime interface for setting a different
461    limit. The limit exists in order to catch runaway regular    limit. The limit exists in order to catch runaway regular
462    expressions that take for ever to determine that they do not match.    expressions that take for ever to determine that they do not match.
463    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 472  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO
472    NO_RECURSE is defined) that is used. The value of    NO_RECURSE is defined) that is used. The value of
473    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
474    have any useful effect, it must be less than the value of    have any useful effect, it must be less than the value of
475    MATCH_LIMIT. There is a runtime method for setting a different    MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
476    limit. On systems that support it, "configure" can be used to    There is a runtime method for setting a different limit. On systems
477    override this default default.])    that support it, "configure" can be used to override the default.])
478    
479  AC_DEFINE([MAX_NAME_SIZE], [32], [  AC_DEFINE([MAX_NAME_SIZE], [32], [
480    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 486  AC_DEFINE([MAX_NAME_COUNT], [10000], [
486    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
487    against integer overflow caused by enormously large patterns.])    against integer overflow caused by enormously large patterns.])
488    
489  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], [  
490  /* 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
491     Win32, and it needs some magic to be inserted before the definition     Win32, and it needs some magic to be inserted before the definition
492     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 496  AH_VERBATIM([PCRE_DATA_SCOPE], [
496     every exported function that is part of the external API. It does     every exported function that is part of the external API. It does
497     not appear on functions that are "external" in the C sense, but     not appear on functions that are "external" in the C sense, but
498     which are internal to the library. */     which are internal to the library. */
499  #undef PCRE_DATA_SCOPE])  #undef PCRE_EXP_DEFN])
500    
501  if test "$enable_ebcdic" = "yes"; then  if test "$enable_ebcdic" = "yes"; then
502    AC_DEFINE_UNQUOTED([EBCDIC], [], [    AC_DEFINE_UNQUOTED([EBCDIC], [], [
# Line 337  if test "$enable_ebcdic" = "yes"; then Line 505  if test "$enable_ebcdic" = "yes"; then
505      "configure", this can be done via --enable-ebcdic.])      "configure", this can be done via --enable-ebcdic.])
506  fi  fi
507    
 # 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)  
   
508  # Platform specific issues  # Platform specific issues
509  NO_UNDEFINED=  NO_UNDEFINED=
510  EXPORT_ALL_SYMBOLS=  EXPORT_ALL_SYMBOLS=
# Line 359  esac Line 520  esac
520  # The extra LDFLAGS for each particular library  # The extra LDFLAGS for each particular library
521  # (Note: The libpcre*_version bits are m4 variables, assigned above)  # (Note: The libpcre*_version bits are m4 variables, assigned above)
522    
523  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"  EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
524                           $NO_UNDEFINED -version-info libpcre_version"
525    
526  EXTRA_LIBPCREPOSIX_LDFLAGS="$NO_UNDEFINED -version-info libpcreposix_version"  EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
527                                $NO_UNDEFINED -version-info libpcreposix_version"
528    
529  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
530                              $NO_UNDEFINED -version-info libpcrecpp_version \
531                              $EXPORT_ALL_SYMBOLS"
532    
533  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
534  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
# Line 373  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS) Line 538  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
538  DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"  DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"
539  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
540    
541    # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
542    # specified, the relevant library is available.
543    
544    if test "$enable_pcregrep_libz" = "yes"; then
545      if test "$HAVE_ZLIB_H" != "1"; then
546        echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
547        exit 1
548      fi
549      if test "$HAVE_LIBZ" != "1"; then
550        echo "** Cannot --enable-pcregrep-libz because libz was not found"
551        exit 1
552      fi
553      LIBZ="-lz"
554    fi
555    AC_SUBST(LIBZ)
556    
557    if test "$enable_pcregrep_libbz2" = "yes"; then
558      if test "$HAVE_BZLIB_H" != "1"; then
559        echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
560        exit 1
561      fi
562      if test "$HAVE_LIBBZ2" != "1"; then
563        echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
564        exit 1
565      fi
566      LIBBZ2="-lbz2"
567    fi
568    AC_SUBST(LIBBZ2)
569    
570    # Similarly for --enable-pcretest-readline
571    
572    if test "$enable_pcretest_libreadline" = "yes"; then
573      if test "$HAVE_READLINE_H" != "1"; then
574        echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
575        exit 1
576      fi
577      if test "$HAVE_HISTORY_H" != "1"; then
578        echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
579        exit 1
580      fi
581      LIBREADLINE="-lreadline"
582    fi
583    AC_SUBST(LIBREADLINE)
584    
585  # Produce these files, in addition to config.h.  # Produce these files, in addition to config.h.
586  AC_CONFIG_FILES(  AC_CONFIG_FILES(
587          Makefile          Makefile
         RunGrepTest  
         RunTest  
588          libpcre.pc          libpcre.pc
589          libpcrecpp.pc          libpcrecpp.pc
590          pcre-config          pcre-config
# Line 387  AC_CONFIG_FILES( Line 594  AC_CONFIG_FILES(
594  )  )
595    
596  # Make the generated script files executable.  # Make the generated script files executable.
597  AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])  AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config])
598    
599    # Make sure that pcre_chartables.c is removed in case the method for
600    # creating it was changed by reconfiguration.
601    AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c])
602    
603  AC_OUTPUT  AC_OUTPUT
604    
605  # Print out a nice little message after configure is run displaying your  # Print out a nice little message after configure is run displaying your
606  # chosen options.  # chosen options.
607  #  
608  cat <<EOF  cat <<EOF
609    
610  $PACKAGE-$VERSION configuration summary:  $PACKAGE-$VERSION configuration summary:
611    
612      Install prefix ......... : ${prefix}      Install prefix .................. : ${prefix}
613      C preprocessor ......... : ${CPP}      C preprocessor .................. : ${CPP}
614      C compiler ............. : ${CC}      C compiler ...................... : ${CC}
615      C++ preprocessor ....... : ${CXXCPP}      C++ preprocessor ................ : ${CXXCPP}
616      C++ compiler ........... : ${CXX}      C++ compiler .................... : ${CXX}
617      Linker ................. : ${LD}      Linker .......................... : ${LD}
618      C preprocessor flags ... : ${CPPFLAGS}      C preprocessor flags ............ : ${CPPFLAGS}
619      C compiler flags ....... : ${CFLAGS}      C compiler flags ................ : ${CFLAGS}
620      C++ compiler flags ..... : ${CXXFLAGS}      C++ compiler flags .............. : ${CXXFLAGS}
621      Linker flags ........... : ${LDFLAGS}      Linker flags .................... : ${LDFLAGS}
622      Extra libraries ........ : ${LIBS}      Extra libraries ................. : ${LIBS}
623    
624      Build C++ library ...... : ${enable_cpp}      Build C++ library ............... : ${enable_cpp}
625      Enable UTF-8 support ... : ${enable_utf8}      Enable UTF-8 support ............ : ${enable_utf8}
626      Unicode properties ..... : ${enable_unicode_properties}      Unicode properties .............. : ${enable_unicode_properties}
627      Newline char/sequence .. : ${enable_newline}      Newline char/sequence ........... : ${enable_newline}
628      EBCDIC coding .......... : ${enable_ebcdic}      \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
629      Use stack recursion .... : ${enable_stack_for_recursion}      EBCDIC coding ................... : ${enable_ebcdic}
630      POSIX mem threshold .... : ${with_posix_malloc_threshold}      Rebuild char tables ............. : ${enable_rebuild_chartables}
631      Internal link size ..... : ${with_link_size}      Use stack recursion ............. : ${enable_stack_for_recursion}
632      Match limit ............ : ${with_match_limit}      POSIX mem threshold ............. : ${with_posix_malloc_threshold}
633      Match limit recursion .. : ${with_match_limit_recursion}      Internal link size .............. : ${with_link_size}
634      Build shared libs ...... : ${enable_shared}      Match limit ..................... : ${with_match_limit}
635      Build static libs ...... : ${enable_static}      Match limit recursion ........... : ${with_match_limit_recursion}
636        Build shared libs ............... : ${enable_shared}
637        Build static libs ............... : ${enable_static}
638        Link pcregrep with libz ......... : ${enable_pcregrep_libz}
639        Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
640        Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
641    
642  EOF  EOF
643    
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