/[pcre]/code/trunk/configure.ac
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revision 708 by ph10, Fri Sep 23 11:03:03 2011 UTC revision 1151 by chpe, Sun Oct 21 16:53:46 2012 UTC
# Line 9  dnl The PCRE_PRERELEASE feature is for i Line 9  dnl The PCRE_PRERELEASE feature is for i
9  dnl be defined as -RC2, for example. For real releases, it should be empty.  dnl be defined as -RC2, for example. For real releases, it should be empty.
10    
11  m4_define(pcre_major, [8])  m4_define(pcre_major, [8])
12  m4_define(pcre_minor, [20])  m4_define(pcre_minor, [32])
13  m4_define(pcre_prerelease, [-RC2])  m4_define(pcre_prerelease, [-RC1])
14  m4_define(pcre_date, [2011-09-23])  m4_define(pcre_date, [2012-08-08])
15    
16    # NOTE: The CMakeLists.txt file searches for the above variables in the first
17    # 50 lines of this file. Please update that if the variables above are moved.
18    
19  # Libtool shared library interface versions (current:revision:age)  # Libtool shared library interface versions (current:revision:age)
20  m4_define(libpcre_version, [0:1:0])  m4_define(libpcre_version, [1:1:0])
21  m4_define(libpcreposix_version, [0:0:0])  m4_define(libpcre16_version, [0:1:0])
22    m4_define(libpcre32_version, [0:1:0])
23    m4_define(libpcreposix_version, [0:1:0])
24  m4_define(libpcrecpp_version, [0:0:0])  m4_define(libpcrecpp_version, [0:0:0])
25    
26  AC_PREREQ(2.57)  AC_PREREQ(2.57)
27  AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)  AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)
28  AC_CONFIG_SRCDIR([pcre.h.in])  AC_CONFIG_SRCDIR([pcre.h.in])
29  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
30    m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
31  AC_CONFIG_HEADERS(config.h)  AC_CONFIG_HEADERS(config.h)
32    
33  # This was added at the suggestion of libtoolize (03-Jan-10)  # This was added at the suggestion of libtoolize (03-Jan-10)
# Line 42  remember_set_CXXFLAGS="$CXXFLAGS" Line 48  remember_set_CXXFLAGS="$CXXFLAGS"
48    
49  AC_PROG_CC  AC_PROG_CC
50  AC_PROG_CXX  AC_PROG_CXX
51    AM_PROG_CC_C_O
52    
53  if test "x$remember_set_CFLAGS" = "x"  if test "x$remember_set_CFLAGS" = "x"
54  then  then
# Line 104  then Line 111  then
111    htmldir='${docdir}/html'    htmldir='${docdir}/html'
112  fi  fi
113    
114    # Handle --disable-pcre8 (enabled by default)
115    AC_ARG_ENABLE(pcre8,
116                  AS_HELP_STRING([--disable-pcre8],
117                                 [disable 8 bit character support]),
118                  , enable_pcre8=unset)
119    AC_SUBST(enable_pcre8)
120    
121    # Handle --enable-pcre16 (disabled by default)
122    AC_ARG_ENABLE(pcre16,
123                  AS_HELP_STRING([--enable-pcre16],
124                                 [enable 16 bit character support]),
125                  , enable_pcre16=unset)
126    AC_SUBST(enable_pcre16)
127    
128    # Handle --enable-pcre32 (disabled by default)
129    AC_ARG_ENABLE(pcre32,
130                  AS_HELP_STRING([--enable-pcre32],
131                                 [enable 32 bit character support]),
132                  , enable_pcre32=unset)
133    AC_SUBST(enable_pcre32)
134    
135  # Handle --disable-cpp. The substitution of enable_cpp is needed for use in  # Handle --disable-cpp. The substitution of enable_cpp is needed for use in
136  # pcre-config.  # pcre-config.
137  AC_ARG_ENABLE(cpp,  AC_ARG_ENABLE(cpp,
138                AS_HELP_STRING([--disable-cpp],                AS_HELP_STRING([--disable-cpp],
139                               [disable C++ support]),                               [disable C++ support]),
140                , enable_cpp=yes)                , enable_cpp=unset)
141  AC_SUBST(enable_cpp)  AC_SUBST(enable_cpp)
142    
143  # Handle --enable-jit (disabled by default)  # Handle --enable-jit (disabled by default)
# Line 133  AC_ARG_ENABLE(rebuild-chartables, Line 161  AC_ARG_ENABLE(rebuild-chartables,
161  # Handle --enable-utf8 (disabled by default)  # Handle --enable-utf8 (disabled by default)
162  AC_ARG_ENABLE(utf8,  AC_ARG_ENABLE(utf8,
163                AS_HELP_STRING([--enable-utf8],                AS_HELP_STRING([--enable-utf8],
164                               [enable UTF-8 support (incompatible with --enable-ebcdic)]),                               [another name for --enable-utf. Kept only for compatibility reasons]),
165                , enable_utf8=unset)                , enable_utf8=unset)
166    
167    # Handle --enable-utf (disabled by default)
168    AC_ARG_ENABLE(utf,
169                  AS_HELP_STRING([--enable-utf],
170                                 [enable UTF-8/16/32 support (incompatible with --enable-ebcdic)]),
171                  , enable_utf=unset)
172    
173  # Handle --enable-unicode-properties  # Handle --enable-unicode-properties
174  AC_ARG_ENABLE(unicode-properties,  AC_ARG_ENABLE(unicode-properties,
175                AS_HELP_STRING([--enable-unicode-properties],                AS_HELP_STRING([--enable-unicode-properties],
176                               [enable Unicode properties support (implies --enable-utf8)]),                               [enable Unicode properties support (implies --enable-utf)]),
177                , enable_unicode_properties=no)                , enable_unicode_properties=no)
178    
179  # Handle --enable-newline=NL  # Handle newline options
 dnl AC_ARG_ENABLE(newline,  
 dnl               AS_HELP_STRING([--enable-newline=NL],  
 dnl                              [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]),  
 dnl               , enable_newline=lf)  
   
 # Separate newline options  
180  ac_pcre_newline=lf  ac_pcre_newline=lf
181  AC_ARG_ENABLE(newline-is-cr,  AC_ARG_ENABLE(newline-is-cr,
182                AS_HELP_STRING([--enable-newline-is-cr],                AS_HELP_STRING([--enable-newline-is-cr],
# Line 181  AC_ARG_ENABLE(bsr-anycrlf, Line 209  AC_ARG_ENABLE(bsr-anycrlf,
209  # Handle --enable-ebcdic  # Handle --enable-ebcdic
210  AC_ARG_ENABLE(ebcdic,  AC_ARG_ENABLE(ebcdic,
211                AS_HELP_STRING([--enable-ebcdic],                AS_HELP_STRING([--enable-ebcdic],
212                               [assume EBCDIC coding rather than ASCII; incompatible with --enable-utf8; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),                               [assume EBCDIC coding rather than ASCII; incompatible with --enable-utf; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
213                , enable_ebcdic=no)                , enable_ebcdic=no)
214    
215    # Handle --enable-ebcdic-nl25
216    AC_ARG_ENABLE(ebcdic-nl25,
217                  AS_HELP_STRING([--enable-ebcdic-nl25],
218                                 [set EBCDIC code for NL to 0x25 instead of 0x15; it implies --enable-ebcdic]),
219                  , enable_ebcdic_nl25=no)
220    
221  # Handle --disable-stack-for-recursion  # Handle --disable-stack-for-recursion
222  AC_ARG_ENABLE(stack-for-recursion,  AC_ARG_ENABLE(stack-for-recursion,
223                AS_HELP_STRING([--disable-stack-for-recursion],                AS_HELP_STRING([--disable-stack-for-recursion],
# Line 208  AC_ARG_WITH(pcregrep-bufsize, Line 242  AC_ARG_WITH(pcregrep-bufsize,
242                               [pcregrep buffer size (default=20480)]),                               [pcregrep buffer size (default=20480)]),
243                , with_pcregrep_bufsize=20480)                , with_pcregrep_bufsize=20480)
244    
245    # Handle --enable-pcretest-libedit
246    AC_ARG_ENABLE(pcretest-libedit,
247                  AS_HELP_STRING([--enable-pcretest-libedit],
248                                 [link pcretest with libedit]),
249                  , enable_pcretest_libedit=no)
250    
251  # Handle --enable-pcretest-libreadline  # Handle --enable-pcretest-libreadline
252  AC_ARG_ENABLE(pcretest-libreadline,  AC_ARG_ENABLE(pcretest-libreadline,
253                AS_HELP_STRING([--enable-pcretest-libreadline],                AS_HELP_STRING([--enable-pcretest-libreadline],
# Line 245  AC_ARG_WITH(match-limit-recursion, Line 285  AC_ARG_WITH(match-limit-recursion,
285                             [default limit on internal recursion (default=MATCH_LIMIT)]),                             [default limit on internal recursion (default=MATCH_LIMIT)]),
286              , with_match_limit_recursion=MATCH_LIMIT)              , with_match_limit_recursion=MATCH_LIMIT)
287    
288  # Make sure that if enable_unicode_properties was set, that UTF-8 support  # Handle --enable-valgrind
289  # is enabled.  AC_ARG_ENABLE(valgrind,
290  #                AS_HELP_STRING([--enable-valgrind],
291                                 [valgrind support]),
292                  , enable_valgrind=no)
293    
294    # Copy enable_utf8 value to enable_utf for compatibility reasons
295    if test "x$enable_utf8" != "xunset"
296    then
297      if test "x$enable_utf" != "xunset"
298      then
299        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.])
300      fi
301      enable_utf=$enable_utf8
302    fi
303    
304    # Set the default value for pcre8
305    if test "x$enable_pcre8" = "xunset"
306    then
307      enable_pcre8=yes
308    fi
309    
310    # Set the default value for pcre16
311    if test "x$enable_pcre16" = "xunset"
312    then
313      enable_pcre16=no
314    fi
315    
316    # Set the default value for pcre32
317    if test "x$enable_pcre32" = "xunset"
318    then
319      enable_pcre32=no
320    fi
321    
322    # Make sure enable_pcre8 or enable_pcre16 was set
323    if test "x$enable_pcre8$enable_pcre16$enable_pcre32" = "xnonono"
324    then
325      AC_MSG_ERROR([At least one of 8, 16 or 32 bit pcre library must be enabled])
326    fi
327    
328    # Make sure that if enable_unicode_properties was set, that UTF support is enabled.
329  if test "x$enable_unicode_properties" = "xyes"  if test "x$enable_unicode_properties" = "xyes"
330  then  then
331    if test "x$enable_utf8" = "xno"    if test "x$enable_utf" = "xno"
332    then    then
333      AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])      AC_MSG_ERROR([support for Unicode properties requires UTF-8/16/32 support])
334    fi    fi
335    enable_utf8=yes    enable_utf=yes
336  fi  fi
337    
338  if test "x$enable_utf8" = "xunset"  # enable_utf is disabled by default.
339    if test "x$enable_utf" = "xunset"
340  then  then
341    enable_utf8=no    enable_utf=no
342  fi  fi
343    
344  # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.  # enable_cpp copies the value of enable_pcre8 by default
345  # Also check that UTF-8 support is not requested, because PCRE cannot handle  if test "x$enable_cpp" = "xunset"
 # EBCDIC and UTF-8 in the same build. To do so it would need to use different  
 # character constants depending on the mode.  
 #  
 if test "x$enable_ebcdic" = "xyes"  
346  then  then
347    enable_rebuild_chartables=yes    enable_cpp=$enable_pcre8
348    if test "x$enable_utf8" = "xyes"  fi
349    
350    # Make sure that if enable_cpp was set, that enable_pcre8 support is enabled
351    if test "x$enable_cpp" = "xyes"
352    then
353      if test "x$enable_pcre8" = "xno"
354    then    then
355      AC_MSG_ERROR([support for EBCDIC and UTF-8 cannot be enabled at the same time])      AC_MSG_ERROR([C++ library requires pcre library with 8 bit characters])
356    fi    fi
357  fi  fi
358    
359  # Convert the newline identifier into the appropriate integer value.  # Convert the newline identifier into the appropriate integer value. The first
360    # three are ASCII values 0x0a, 0x0d, and 0x0d0a, but if EBCDIC is enabled, they
361    # are changed below.
362    
363  case "$enable_newline" in  case "$enable_newline" in
364    lf)      ac_pcre_newline_value=10   ;;    lf)      ac_pcre_newline_value=10   ;;
365    cr)      ac_pcre_newline_value=13   ;;    cr)      ac_pcre_newline_value=13   ;;
# Line 288  case "$enable_newline" in Line 371  case "$enable_newline" in
371    ;;    ;;
372  esac  esac
373    
374    # --enable-ebcdic-nl25 implies --enable-ebcdic
375    if test "x$enable_ebcdic_nl25" = "xyes"; then
376      enable_ebcdic=yes
377    fi
378    
379    # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled,
380    # and the newline value is adjusted appropriately (CR is still 13, but LF is
381    # 21 or 37). Also check that UTF support is not requested, because PCRE cannot
382    # handle EBCDIC and UTF in the same build. To do so it would need to use
383    # different character constants depending on the mode.
384    #
385    if test "x$enable_ebcdic" = "xyes"; then
386      enable_rebuild_chartables=yes
387    
388      if test "x$enable_utf" = "xyes"; then
389        AC_MSG_ERROR([support for EBCDIC and UTF-8/16/32 cannot be enabled at the same time])
390      fi
391    
392      if test "x$enable_ebcdic_nl25" = "xno"; then
393        case "$ac_pcre_newline_value" in
394          10)   ac_pcre_newline_value=21 ;;
395          3338) ac_pcre_newline_value=3349 ;;
396        esac
397      else
398        case "$ac_pcre_newline_value" in
399          10)   ac_pcre_newline_value=37 ;;
400          3338) ac_pcre_newline_value=3365 ;;
401        esac
402      fi
403    fi
404    
405  # Check argument to --with-link-size  # Check argument to --with-link-size
406  case "$with_link_size" in  case "$with_link_size" in
407    2|3|4) ;;    2|3|4) ;;
# Line 297  case "$with_link_size" in Line 411  case "$with_link_size" in
411  esac  esac
412    
413  AH_TOP([  AH_TOP([
414  /* On Unix-like systems config.h.in is converted by "configure" into config.h.  /* PCRE is written in Standard C, but there are a few non-standard things it
415  Some other environments also support the use of "configure". PCRE is written in  can cope with, allowing it to run on SunOS4 and other "close to standard"
416  Standard C, but there are a few non-standard things it can cope with, allowing  systems.
417  it to run on SunOS4 and other "close to standard" systems.  
418    In environments that support the facilities, config.h.in is converted by
419  If you are going to build PCRE "by hand" on a system without "configure" you  "configure", or config-cmake.h.in is converted by CMake, into config.h. If you
420  should copy the distributed config.h.generic to config.h, and then set up the  are going to build PCRE "by hand" without using "configure" or CMake, you
421  macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to  should copy the distributed config.h.generic to config.h, and then edit the
422  all of your compile commands, so that config.h is included at the start of  macro definitions to be the way you need them. You must then add
423  every source.  -DHAVE_CONFIG_H to all of your compile commands, so that config.h is included
424    at the start of every source.
425    
426  Alternatively, you can avoid editing by using -D on the compiler command line  Alternatively, you can avoid editing by using -D on the compiler command line
427  to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.  to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
# Line 410  AC_SUBST(pcre_have_type_traits) Line 525  AC_SUBST(pcre_have_type_traits)
525  AC_SUBST(pcre_have_bits_type_traits)  AC_SUBST(pcre_have_bits_type_traits)
526    
527  # Conditional compilation  # Conditional compilation
528    AM_CONDITIONAL(WITH_PCRE8, test "x$enable_pcre8" = "xyes")
529    AM_CONDITIONAL(WITH_PCRE16, test "x$enable_pcre16" = "xyes")
530    AM_CONDITIONAL(WITH_PCRE32, test "x$enable_pcre32" = "xyes")
531  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
532  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
533  AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")  AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
534  AM_CONDITIONAL(WITH_UTF8, test "x$enable_utf8" = "xyes")  AM_CONDITIONAL(WITH_UTF, test "x$enable_utf" = "xyes")
535    AM_CONDITIONAL(WITH_VALGRIND, test "x$enable_valgrind" = "xyes")
536    
537  # Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
538    
# Line 465  LIBS="$OLD_LIBS" Line 584  LIBS="$OLD_LIBS"
584    
585  # Check for the availabiity of libreadline  # Check for the availabiity of libreadline
586    
587  AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])  if test "$enable_pcretest_libreadline" = "yes"; then
588  AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])   AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
589  AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1])   AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
590     AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lreadline"],
591       [unset ac_cv_lib_readline_readline;
592        AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltinfo"],
593         [unset ac_cv_lib_readline_readline;
594          AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lcurses"],
595           [unset ac_cv_lib_readline_readline;
596            AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncurses"],
597             [unset ac_cv_lib_readline_readline;
598              AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncursesw"],
599               [unset ac_cv_lib_readline_readline;
600                AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltermcap"],
601                 [LIBREADLINE=""],
602                 [-ltermcap])],
603               [-lncursesw])],
604             [-lncurses])],
605           [-lcurses])],
606         [-ltinfo])])
607     AC_SUBST(LIBREADLINE)
608     if test -n "$LIBREADLINE"; then
609       if test "$LIBREADLINE" != "-lreadline"; then
610         echo "-lreadline needs $LIBREADLINE"
611         LIBREADLINE="-lreadline $LIBREADLINE"
612       fi
613     fi
614    fi
615    
616    
617    # Check for the availability of libedit. Different distributions put its
618    # headers in different places. Try to cover the most common ones.
619    
620    if test "$enable_pcretest_libedit" = "yes"; then
621      AC_CHECK_HEADERS([editline/readline.h], [HAVE_EDITLINE_READLINE_H=1],
622        [AC_CHECK_HEADERS([edit/readline/readline.h], [HAVE_READLINE_READLINE_H=1],
623          [AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_READLINE_H=1])])])
624      AC_CHECK_LIB([edit], [readline], [LIBEDIT="-ledit"])
625    fi
626    
627  # This facilitates -ansi builds under Linux  # This facilitates -ansi builds under Linux
628  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
# Line 475  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable Line 630  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable
630  PCRE_STATIC_CFLAG=""  PCRE_STATIC_CFLAG=""
631  if test "x$enable_shared" = "xno" ; then  if test "x$enable_shared" = "xno" ; then
632    AC_DEFINE([PCRE_STATIC], [1], [    AC_DEFINE([PCRE_STATIC], [1], [
633      Define if linking statically (TODO: make nice with Libtool)])      Define to any value if linking statically (TODO: make nice with Libtool)])
634    PCRE_STATIC_CFLAG="-DPCRE_STATIC"    PCRE_STATIC_CFLAG="-DPCRE_STATIC"
635  fi  fi
636  AC_SUBST(PCRE_STATIC_CFLAG)  AC_SUBST(PCRE_STATIC_CFLAG)
637    
638  # Here is where pcre specific defines are handled  # Here is where pcre specific defines are handled
639    
640    if test "$enable_pcre8" = "yes"; then
641      AC_DEFINE([SUPPORT_PCRE8], [], [
642        Define to any value to enable the 8 bit PCRE library.])
643    fi
644    
645    if test "$enable_pcre16" = "yes"; then
646      AC_DEFINE([SUPPORT_PCRE16], [], [
647        Define to any value to enable the 16 bit PCRE library.])
648    fi
649    
650    if test "$enable_pcre32" = "yes"; then
651      AC_DEFINE([SUPPORT_PCRE32], [], [
652        Define to any value to enable the 32 bit PCRE library.])
653    fi
654    
655  if test "$enable_jit" = "yes"; then  if test "$enable_jit" = "yes"; then
656      AX_PTHREAD([], [AC_MSG_ERROR([JIT support requires pthreads])])
657      CC="$PTHREAD_CC"
658      CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
659      LIBS="$PTHREAD_LIBS $LIBS"
660    AC_DEFINE([SUPPORT_JIT], [], [    AC_DEFINE([SUPPORT_JIT], [], [
661      Define to enable support for Just-In-Time compiling.])      Define to any value to enable support for Just-In-Time compiling.])
662  else  else
663    enable_pcregrep_jit="no"    enable_pcregrep_jit="no"
664  fi  fi
665    
666  if test "$enable_pcregrep_jit" = "yes"; then  if test "$enable_pcregrep_jit" = "yes"; then
667    AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [    AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [
668      Define to enable JIT support in pcregrep.])      Define to any value to enable JIT support in pcregrep.])
669  fi  fi
670    
671  if test "$enable_utf8" = "yes"; then  if test "$enable_utf" = "yes"; then
672    AC_DEFINE([SUPPORT_UTF8], [], [    AC_DEFINE([SUPPORT_UTF], [], [
673      Define to enable support for the UTF-8 Unicode encoding. This will      Define to any value to enable support for the UTF-8/16/32 Unicode encoding.
674      work even in an EBCDIC environment, but it is incompatible with      This will work even in an EBCDIC environment, but it is incompatible
675      the EBCDIC macro. That is, PCRE can support *either* EBCDIC code      with the EBCDIC macro. That is, PCRE can support *either* EBCDIC
676      *or* ASCII/UTF-8, but not both at once.])      code *or* ASCII/UTF-8/16/32, but not both at once.])
677  fi  fi
678    
679  if test "$enable_unicode_properties" = "yes"; then  if test "$enable_unicode_properties" = "yes"; then
680    AC_DEFINE([SUPPORT_UCP], [], [    AC_DEFINE([SUPPORT_UCP], [], [
681      Define to enable support for Unicode properties.])      Define to any value to enable support for Unicode properties.])
682  fi  fi
683    
684  if test "$enable_stack_for_recursion" = "no"; then  if test "$enable_stack_for_recursion" = "no"; then
685    AC_DEFINE([NO_RECURSE], [], [    AC_DEFINE([NO_RECURSE], [], [
686      PCRE uses recursive function calls to handle backtracking while      PCRE uses recursive function calls to handle backtracking while
687      matching. This can sometimes be a problem on systems that have      matching. This can sometimes be a problem on systems that have
688      stacks of limited size. Define NO_RECURSE to get a version that      stacks of limited size. Define NO_RECURSE to any value to get a
689      doesn't use recursion in the match() function; instead it creates      version that doesn't use recursion in the match() function; instead
690      its own stack by steam using pcre_recurse_malloc() to obtain memory      it creates its own stack by steam using pcre_recurse_malloc() to obtain
691      from the heap. For more detail, see the comments and other stuff      memory from the heap. For more detail, see the comments and other stuff
692      just above the match() function. On systems that support it,      just above the match() function.])
     "configure" can be used to set this in the Makefile  
     (use --disable-stack-for-recursion).])  
693  fi  fi
694    
695  if test "$enable_pcregrep_libz" = "yes"; then  if test "$enable_pcregrep_libz" = "yes"; then
696    AC_DEFINE([SUPPORT_LIBZ], [], [    AC_DEFINE([SUPPORT_LIBZ], [], [
697      Define to allow pcregrep to be linked with libz, so that it is      Define to any value to allow pcregrep to be linked with libz, so that it is
698      able to handle .gz files.])      able to handle .gz files.])
699  fi  fi
700    
701  if test "$enable_pcregrep_libbz2" = "yes"; then  if test "$enable_pcregrep_libbz2" = "yes"; then
702    AC_DEFINE([SUPPORT_LIBBZ2], [], [    AC_DEFINE([SUPPORT_LIBBZ2], [], [
703      Define to allow pcregrep to be linked with libbz2, so that it is      Define to any value to allow pcregrep to be linked with libbz2, so that it
704      able to handle .bz2 files.])      is able to handle .bz2 files.])
705  fi  fi
706    
707  if test $with_pcregrep_bufsize -lt 8192 ; then  if test $with_pcregrep_bufsize -lt 8192 ; then
# Line 537  if test $with_pcregrep_bufsize -lt 8192 Line 709  if test $with_pcregrep_bufsize -lt 8192
709  fi  fi
710    
711  AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [  AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [
712    The value of PCREGREP_BUFSIZE determines the size of buffer used by    The value of PCREGREP_BUFSIZE determines the size of buffer used by pcregrep
713    pcregrep to hold parts of the file it is searching. On systems that    to hold parts of the file it is searching. This is also the minimum value.
714    support it, "configure" can be used to override the default, which is    The actual amount of memory used by pcregrep is three times this number,
715    8192. This is also the minimum value. The actual amount of memory used by    because it allows for the buffering of "before" and "after" lines.])
716    pcregrep is three times this number, because it allows for the buffering of  
717    "before" and "after" lines.])  if test "$enable_pcretest_libedit" = "yes"; then
718      AC_DEFINE([SUPPORT_LIBEDIT], [], [
719  if test "$enable_pcretest_libreadline" = "yes"; then      Define to any value to allow pcretest to be linked with libedit.])
720      LIBREADLINE="$LIBEDIT"
721    elif test "$enable_pcretest_libreadline" = "yes"; then
722    AC_DEFINE([SUPPORT_LIBREADLINE], [], [    AC_DEFINE([SUPPORT_LIBREADLINE], [], [
723      Define to allow pcretest to be linked with libreadline.])      Define to any value to allow pcretest to be linked with libreadline.])
724  fi  fi
725    
726  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
727    The value of NEWLINE determines the newline character sequence. On    The value of NEWLINE determines the default newline character sequence. PCRE
728    systems that support it, "configure" can be used to override the    client programs can override this by selecting other values at run time. In
729    default, which is 10. The possible values are 10 (LF), 13 (CR),    ASCII environments, the value can be 10 (LF), 13 (CR), or 3338 (CRLF); in
730    3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).])    EBCDIC environments the value can be 21 or 37 (LF), 13 (CR), or 3349 or 3365
731      (CRLF) because there are two alternative codepoints (0x15 and 0x25) that are
732      used as the NL line terminator that is equivalent to ASCII LF. In both ASCII
733      and EBCDIC environments the value can also be -1 (ANY), or -2 (ANYCRLF).])
734    
735  if test "$enable_bsr_anycrlf" = "yes"; then  if test "$enable_bsr_anycrlf" = "yes"; then
736    AC_DEFINE([BSR_ANYCRLF], [], [    AC_DEFINE([BSR_ANYCRLF], [], [
737      By default, the \R escape sequence matches any Unicode line ending      By default, the \R escape sequence matches any Unicode line ending
738      character or sequence of characters. If BSR_ANYCRLF is defined, this is      character or sequence of characters. If BSR_ANYCRLF is defined (to any
739      changed so that backslash-R matches only CR, LF, or CRLF. The build-      value), this is changed so that backslash-R matches only CR, LF, or CRLF.
740      time default can be overridden by the user of PCRE at runtime. On      The build-time default can be overridden by the user of PCRE at runtime.])
     systems that support it, "configure" can be used to override the  
     default.])  
741  fi  fi
742    
743  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
# Line 570  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_l Line 745  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_l
745    links as offsets within the compiled regex. The default is 2, which    links as offsets within the compiled regex. The default is 2, which
746    allows for compiled patterns up to 64K long. This covers the vast    allows for compiled patterns up to 64K long. This covers the vast
747    majority of cases. However, PCRE can also be compiled to use 3 or 4    majority of cases. However, PCRE can also be compiled to use 3 or 4
748    bytes instead. This allows for longer patterns in extreme cases. On    bytes instead. This allows for longer patterns in extreme cases.])
   systems that support it, "configure" can be used to override this default.])  
749    
750  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
751    When calling PCRE via the POSIX interface, additional working storage    When calling PCRE via the POSIX interface, additional working storage
# Line 580  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO Line 754  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHO
754    interface provides only two. If the number of expected substrings is    interface provides only two. If the number of expected substrings is
755    small, the wrapper function uses space on the stack, because this is    small, the wrapper function uses space on the stack, because this is
756    faster than using malloc() for each call. The threshold above which    faster than using malloc() for each call. The threshold above which
757    the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On    the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD.])
   systems that support it, "configure" can be used to override this  
   default.])  
758    
759  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
760    The value of MATCH_LIMIT determines the default number of times the    The value of MATCH_LIMIT determines the default number of times the
# Line 591  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with Line 763  AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with
763    limit. The limit exists in order to catch runaway regular    limit. The limit exists in order to catch runaway regular
764    expressions that take for ever to determine that they do not match.    expressions that take for ever to determine that they do not match.
765    The default is set very large so that it does not accidentally catch    The default is set very large so that it does not accidentally catch
766    legitimate cases. On systems that support it, "configure" can be    legitimate cases.])
   used to override this default default.])  
767    
768  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
769    The above limit applies to all calls of match(), whether or not they    The above limit applies to all calls of match(), whether or not they
# Line 603  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO Line 774  AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSIO
774    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To    MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
775    have any useful effect, it must be less than the value of    have any useful effect, it must be less than the value of
776    MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.    MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
777    There is a runtime method for setting a different limit. On systems    There is a runtime method for setting a different limit.])
   that support it, "configure" can be used to override the default.])  
778    
779  AC_DEFINE([MAX_NAME_SIZE], [32], [  AC_DEFINE([MAX_NAME_SIZE], [32], [
780    This limit is parameterized just in case anybody ever wants to    This limit is parameterized just in case anybody ever wants to
# Line 620  AH_VERBATIM([PCRE_EXP_DEFN], [ Line 790  AH_VERBATIM([PCRE_EXP_DEFN], [
790  /* 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
791     Win32, and it needs some magic to be inserted before the definition     Win32, and it needs some magic to be inserted before the definition
792     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
793     contain the relevant magic. If you do not define this macro, it     contain the relevant magic. If you do not define this macro, a suitable
794     defaults to "extern" for a C compiler and "extern C" for a C++      __declspec value is used for Windows systems; in other environments
795     compiler on non-Win32 systems. This macro apears at the start of     "extern" is used for a C compiler and "extern C" for a C++ compiler.
796     every exported function that is part of the external API. It does     This macro apears at the start of every exported function that is part
797     not appear on functions that are "external" in the C sense, but     of the external API. It does not appear on functions that are "external"
798     which are internal to the library. */     in the C sense, but which are internal to the library. */
799  #undef PCRE_EXP_DEFN])  #undef PCRE_EXP_DEFN])
800    
801  if test "$enable_ebcdic" = "yes"; then  if test "$enable_ebcdic" = "yes"; then
802    AC_DEFINE_UNQUOTED([EBCDIC], [], [    AC_DEFINE_UNQUOTED([EBCDIC], [], [
803      If you are compiling for a system that uses EBCDIC instead of ASCII      If you are compiling for a system that uses EBCDIC instead of ASCII
804      character codes, define this macro as 1. On systems that can use      character codes, define this macro to any value. You must also edit the
805      "configure", this can be done via --enable-ebcdic. PCRE will then      NEWLINE macro below to set a suitable EBCDIC newline, commonly 21 (0x15).
806      assume that all input strings are in EBCDIC. If you do not define      On systems that can use "configure" or CMake to set EBCDIC, NEWLINE is
807      this macro, PCRE will assume input strings are ASCII or UTF-8 Unicode.      automatically adjusted. When EBCDIC is set, PCRE assumes that all input
808      It is not possible to build a version of PCRE that supports both      strings are in EBCDIC. If you do not define this macro, PCRE will assume
809      EBCDIC and UTF-8.])      input strings are ASCII or UTF-8/16/32 Unicode. It is not possible to build
810        a version of PCRE that supports both EBCDIC and UTF-8/16/32.])
811    fi
812    
813    if test "$enable_ebcdic_nl25" = "yes"; then
814      AC_DEFINE_UNQUOTED([EBCDIC_NL25], [], [
815        In an EBCDIC environment, define this macro to any value to arrange for
816        the NL character to be 0x25 instead of the default 0x15. NL plays the role
817        that LF does in an ASCII/Unicode environment. The value must also be set in
818        the NEWLINE macro below. On systems that can use "configure" or CMake to
819        set EBCDIC_NL25, the adjustment of NEWLINE is automatic.])
820    fi
821    
822    if test "$enable_valgrind" = "yes"; then
823      AC_DEFINE_UNQUOTED([SUPPORT_VALGRIND], [], [
824         Valgrind support to find invalid memory reads.])
825  fi  fi
826    
827  # Platform specific issues  # Platform specific issues
# Line 657  esac Line 842  esac
842  EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \  EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
843                         $NO_UNDEFINED -version-info libpcre_version"                         $NO_UNDEFINED -version-info libpcre_version"
844    
845    EXTRA_LIBPCRE16_LDFLAGS="$EXTRA_LIBPCRE16_LDFLAGS \
846                           $NO_UNDEFINED -version-info libpcre16_version"
847    
848    EXTRA_LIBPCRE32_LDFLAGS="$EXTRA_LIBPCRE32_LDFLAGS \
849                           $NO_UNDEFINED -version-info libpcre32_version"
850    
851  EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \  EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
852                              $NO_UNDEFINED -version-info libpcreposix_version"                              $NO_UNDEFINED -version-info libpcreposix_version"
853    
# Line 665  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRE Line 856  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRE
856                            $EXPORT_ALL_SYMBOLS"                            $EXPORT_ALL_SYMBOLS"
857    
858  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
859    AC_SUBST(EXTRA_LIBPCRE16_LDFLAGS)
860    AC_SUBST(EXTRA_LIBPCRE32_LDFLAGS)
861  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
862  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
863    
864  # When we run 'make distcheck', use these arguments.  # When we run 'make distcheck', use these arguments. Turning off compiler
865  DISTCHECK_CONFIGURE_FLAGS="--enable-jit --enable-cpp --enable-unicode-properties"  # optimization makes it run faster.
866    DISTCHECK_CONFIGURE_FLAGS="CFLAGS='' CXXFLAGS='' --enable-pcre16 --enable-pcre32 --enable-jit --enable-cpp --enable-unicode-properties"
867  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
868    
869  # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is  # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
# Line 703  AC_SUBST(LIBBZ2) Line 897  AC_SUBST(LIBBZ2)
897    
898  # Similarly for --enable-pcretest-readline  # Similarly for --enable-pcretest-readline
899    
900    if test "$enable_pcretest_libedit" = "yes"; then
901      if test "$enable_pcretest_libreadline" = "yes"; then
902        echo "** Cannot use both --enable-pcretest-libedit and --enable-pcretest-readline"
903        exit 1
904      fi
905      if test "$HAVE_EDITLINE_READLINE_H" != "1" -a \
906              "$HAVE_READLINE_READLINE_H" != "1"; then
907        echo "** Cannot --enable-pcretest-libedit because neither editline/readline.h"
908        echo "** nor readline/readline.h was found."
909        exit 1
910      fi
911      if test -z "$LIBEDIT"; then
912        echo "** Cannot --enable-pcretest-libedit because libedit library was not found."
913        exit 1
914      fi
915    fi
916    
917  if test "$enable_pcretest_libreadline" = "yes"; then  if test "$enable_pcretest_libreadline" = "yes"; then
918    if test "$HAVE_READLINE_H" != "1"; then    if test "$HAVE_READLINE_H" != "1"; then
919      echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."      echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
# Line 712  if test "$enable_pcretest_libreadline" = Line 923  if test "$enable_pcretest_libreadline" =
923      echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."      echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
924      exit 1      exit 1
925    fi    fi
926    LIBREADLINE="-lreadline"    if test -z "$LIBREADLINE"; then
927        echo "** Cannot --enable-pcretest-readline because readline library was not found."
928        exit 1
929      fi
930    fi
931    
932    # Check for valgrind
933    
934    if test "$enable_valgrind" = "yes"; then
935      m4_ifdef([PKG_CHECK_MODULES],
936               [PKG_CHECK_MODULES([VALGRIND],[valgrind])],
937               [AC_MSG_ERROR([pkg-config not supported])])
938  fi  fi
 AC_SUBST(LIBREADLINE)  
939    
940  # Produce these files, in addition to config.h.  # Produce these files, in addition to config.h.
941  AC_CONFIG_FILES(  AC_CONFIG_FILES(
942          Makefile          Makefile
943          libpcre.pc          libpcre.pc
944          libpcreposix.pc          libpcre16.pc
945            libpcre32.pc
946            libpcreposix.pc
947          libpcrecpp.pc          libpcrecpp.pc
948          pcre-config          pcre-config
949          pcre.h          pcre.h
# Line 737  AC_CONFIG_COMMANDS([delete-old-chartable Line 960  AC_CONFIG_COMMANDS([delete-old-chartable
960    
961  AC_OUTPUT  AC_OUTPUT
962    
963  # Print out a nice little message after configure is run displaying your  # Print out a nice little message after configure is run displaying the
964  # chosen options.  # chosen options.
965    
966    ebcdic_nl_code=n/a
967    if test "$enable_ebcdic_nl25" = "yes"; then
968      ebcdic_nl_code=0x25
969    elif test "$enable_ebcdic" = "yes"; then
970      ebcdic_nl_code=0x15
971    fi
972    
973  cat <<EOF  cat <<EOF
974    
975  $PACKAGE-$VERSION configuration summary:  $PACKAGE-$VERSION configuration summary:
# Line 756  $PACKAGE-$VERSION configuration summary: Line 986  $PACKAGE-$VERSION configuration summary:
986      Linker flags .................... : ${LDFLAGS}      Linker flags .................... : ${LDFLAGS}
987      Extra libraries ................. : ${LIBS}      Extra libraries ................. : ${LIBS}
988    
989        Build 8 bit pcre library ........ : ${enable_pcre8}
990        Build 16 bit pcre library ....... : ${enable_pcre16}
991        Build 32 bit pcre library ....... : ${enable_pcre32}
992      Build C++ library ............... : ${enable_cpp}      Build C++ library ............... : ${enable_cpp}
993      Enable JIT compiling support .... : ${enable_jit}      Enable JIT compiling support .... : ${enable_jit}
994      Enable UTF-8 support ............ : ${enable_utf8}      Enable UTF-8/16/32 support ...... : ${enable_utf}
995      Unicode properties .............. : ${enable_unicode_properties}      Unicode properties .............. : ${enable_unicode_properties}
996      Newline char/sequence ........... : ${enable_newline}      Newline char/sequence ........... : ${enable_newline}
997      \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}      \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
998      EBCDIC coding ................... : ${enable_ebcdic}      EBCDIC coding ................... : ${enable_ebcdic}
999        EBCDIC code for NL .............. : ${ebcdic_nl_code}
1000      Rebuild char tables ............. : ${enable_rebuild_chartables}      Rebuild char tables ............. : ${enable_rebuild_chartables}
1001      Use stack recursion ............. : ${enable_stack_for_recursion}      Use stack recursion ............. : ${enable_stack_for_recursion}
1002      POSIX mem threshold ............. : ${with_posix_malloc_threshold}      POSIX mem threshold ............. : ${with_posix_malloc_threshold}
# Line 775  $PACKAGE-$VERSION configuration summary: Line 1009  $PACKAGE-$VERSION configuration summary:
1009      Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}      Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
1010      Link pcregrep with libz ......... : ${enable_pcregrep_libz}      Link pcregrep with libz ......... : ${enable_pcregrep_libz}
1011      Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}      Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
1012        Link pcretest with libedit ...... : ${enable_pcretest_libedit}
1013      Link pcretest with libreadline .. : ${enable_pcretest_libreadline}      Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
1014        Valgrind support ................ : ${enable_valgrind}
1015    
1016  EOF  EOF
1017    

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