/[pcre]/code/trunk/configure.ac
ViewVC logotype

Diff of /code/trunk/configure.ac

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 198 by ph10, Tue Jul 31 11:11:23 2007 UTC revision 886 by ph10, Tue Jan 17 14:25:07 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  dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with  dnl NOTE FOR MAINTAINERS: Do not use minor version numbers 08 or 09 because
4  dnl leading zeros, because they may be treated as octal constants. The  dnl the leading zeros may cause them to be treated as invalid octal constants
5  dnl PCRE_PRERELEASE feature is for identifying release candidates. It might  dnl if a PCRE user writes code that uses PCRE_MINOR as a number. There is now
6  dnl be defined as -RC2, for example. For real releases, it should be defined  dnl a check further down that throws an error if 08 or 09 are used.
7  dnl empty.  
8    dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might
9  m4_define(pcre_major, [7])  dnl be defined as -RC2, for example. For real releases, it should be empty.
10  m4_define(pcre_minor, [3])  
11  m4_define(pcre_prerelease, [-RC2])  m4_define(pcre_major, [8])
12  m4_define(pcre_date, [2007-07-31])  m4_define(pcre_minor, [30])
13    m4_define(pcre_prerelease, [-PT1])
14    m4_define(pcre_date, [2012-01-01])
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, [1:0:0])
21    m4_define(libpcre16_version, [0:0:0])
22  m4_define(libpcreposix_version, [0:0:0])  m4_define(libpcreposix_version, [0:0:0])
23  m4_define(libpcrecpp_version, [0:0:0])  m4_define(libpcrecpp_version, [0:0:0])
24    
# Line 20  AC_PREREQ(2.57) Line 26  AC_PREREQ(2.57)
26  AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)  AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)
27  AC_CONFIG_SRCDIR([pcre.h.in])  AC_CONFIG_SRCDIR([pcre.h.in])
28  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])  AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
29    m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
30  AC_CONFIG_HEADERS(config.h)  AC_CONFIG_HEADERS(config.h)
31    
32    # This was added at the suggestion of libtoolize (03-Jan-10)
33    AC_CONFIG_MACRO_DIR([m4])
34    
35  # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just  # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
36  # "-g" for any other compiler. There doesn't seem to be a standard way of  # "-g" for any other compiler. There doesn't seem to be a standard way of
37  # getting rid of the -g (which I don't think is needed for a production  # getting rid of the -g (which I don't think is needed for a production
# Line 60  then Line 70  then
70    fi    fi
71  fi  fi
72    
73    # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
74    # Check for that case, and just disable c++ code if g++ doesn't run.
75    AC_LANG_PUSH(C++)
76    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],, CXX=""; CXXCP=""; CXXFLAGS="")
77    AC_LANG_POP
78    
79    # Check for a 64-bit integer type
80    AC_TYPE_INT64_T
81    
82  AC_PROG_INSTALL  AC_PROG_INSTALL
83  AC_LIBTOOL_WIN32_DLL  AC_LIBTOOL_WIN32_DLL
84  AC_PROG_LIBTOOL  LT_INIT
85  AC_PROG_LN_S  AC_PROG_LN_S
86    
87  PCRE_MAJOR="pcre_major"  PCRE_MAJOR="pcre_major"
# Line 71  PCRE_MINOR="pcre_minor" Line 89  PCRE_MINOR="pcre_minor"
89  PCRE_PRERELEASE="pcre_prerelease"  PCRE_PRERELEASE="pcre_prerelease"
90  PCRE_DATE="pcre_date"  PCRE_DATE="pcre_date"
91    
92    if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09"
93    then
94      echo "***"
95      echo "*** Minor version number $PCRE_MINOR must not be used. ***"
96      echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***"
97      echo "***"
98      exit 1
99    fi
100    
101  AC_SUBST(PCRE_MAJOR)  AC_SUBST(PCRE_MAJOR)
102  AC_SUBST(PCRE_MINOR)  AC_SUBST(PCRE_MINOR)
103  AC_SUBST(PCRE_PRERELEASE)  AC_SUBST(PCRE_PRERELEASE)
# Line 82  then Line 109  then
109    htmldir='${docdir}/html'    htmldir='${docdir}/html'
110  fi  fi
111    
112  # Handle --disable-cpp  # Handle --disable-pcre8 (enabled by default)
113    AC_ARG_ENABLE(pcre8,
114                  AS_HELP_STRING([--disable-pcre8],
115                                 [disable 8 bit character support]),
116                  , enable_pcre8=unset)
117    AC_SUBST(enable_pcre8)
118    
119    # Handle --enable-pcre16 (disabled by default)
120    AC_ARG_ENABLE(pcre16,
121                  AS_HELP_STRING([--enable-pcre16],
122                                 [enable 16 bit character support]),
123                  , enable_pcre16=unset)
124    AC_SUBST(enable_pcre16)
125    
126    # Handle --disable-cpp. The substitution of enable_cpp is needed for use in
127    # pcre-config.
128  AC_ARG_ENABLE(cpp,  AC_ARG_ENABLE(cpp,
129                AS_HELP_STRING([--disable-cpp],                AS_HELP_STRING([--disable-cpp],
130                               [disable C++ support]),                               [disable C++ support]),
131                , enable_cpp=yes)                , enable_cpp=unset)
132    AC_SUBST(enable_cpp)
133    
134    # Handle --enable-jit (disabled by default)
135    AC_ARG_ENABLE(jit,
136                  AS_HELP_STRING([--enable-jit],
137                                 [enable Just-In-Time compiling support]),
138                  , enable_jit=no)
139    
140    # Handle --disable-pcregrep-jit (enabled by default)
141    AC_ARG_ENABLE(pcregrep-jit,
142                  AS_HELP_STRING([--disable-pcregrep-jit],
143                                 [disable JIT support in pcregrep]),
144                  , enable_pcregrep_jit=yes)
145    
146  # Handle --enable-rebuild-chartables  # Handle --enable-rebuild-chartables
147  AC_ARG_ENABLE(rebuild-chartables,  AC_ARG_ENABLE(rebuild-chartables,
# Line 97  AC_ARG_ENABLE(rebuild-chartables, Line 152  AC_ARG_ENABLE(rebuild-chartables,
152  # Handle --enable-utf8 (disabled by default)  # Handle --enable-utf8 (disabled by default)
153  AC_ARG_ENABLE(utf8,  AC_ARG_ENABLE(utf8,
154                AS_HELP_STRING([--enable-utf8],                AS_HELP_STRING([--enable-utf8],
155                               [enable UTF-8 support]),                               [another name for --enable-utf. Kept only for compatibility reasons]),
156                , enable_utf8=unset)                , enable_utf8=unset)
157    
158    # Handle --enable-utf (disabled by default)
159    AC_ARG_ENABLE(utf,
160                  AS_HELP_STRING([--enable-utf],
161                                 [enable UTF-8/16 support (incompatible with --enable-ebcdic)]),
162                  , enable_utf=unset)
163    
164  # Handle --enable-unicode-properties  # Handle --enable-unicode-properties
165  AC_ARG_ENABLE(unicode-properties,  AC_ARG_ENABLE(unicode-properties,
166                AS_HELP_STRING([--enable-unicode-properties],                AS_HELP_STRING([--enable-unicode-properties],
167                               [enable Unicode properties support (implies --enable-utf8)]),                               [enable Unicode properties support (implies --enable-utf)]),
168                , enable_unicode_properties=no)                , enable_unicode_properties=no)
169    
170  # Handle --enable-newline=NL  # Handle --enable-newline=NL
# Line 136  AC_ARG_ENABLE(newline-is-any, Line 197  AC_ARG_ENABLE(newline-is-any,
197                ac_pcre_newline=any)                ac_pcre_newline=any)
198  enable_newline="$ac_pcre_newline"  enable_newline="$ac_pcre_newline"
199    
200    # Handle --enable-bsr-anycrlf
201    AC_ARG_ENABLE(bsr-anycrlf,
202                  AS_HELP_STRING([--enable-bsr-anycrlf],
203                                 [\R matches only CR, LF, CRLF by default]),
204                  , enable_bsr_anycrlf=no)
205    
206  # Handle --enable-ebcdic  # Handle --enable-ebcdic
207  AC_ARG_ENABLE(ebcdic,  AC_ARG_ENABLE(ebcdic,
208                AS_HELP_STRING([--enable-ebcdic],                AS_HELP_STRING([--enable-ebcdic],
209                               [assume EBCDIC coding rather than ASCII; use this 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]),
210                , enable_ebcdic=no)                , enable_ebcdic=no)
211    
212  # Handle --disable-stack-for-recursion  # Handle --disable-stack-for-recursion
# Line 148  AC_ARG_ENABLE(stack-for-recursion, Line 215  AC_ARG_ENABLE(stack-for-recursion,
215                               [don't use stack recursion when matching]),                               [don't use stack recursion when matching]),
216                , enable_stack_for_recursion=yes)                , enable_stack_for_recursion=yes)
217    
218    # Handle --enable-pcregrep-libz
219    AC_ARG_ENABLE(pcregrep-libz,
220                  AS_HELP_STRING([--enable-pcregrep-libz],
221                                 [link pcregrep with libz to handle .gz files]),
222                  , enable_pcregrep_libz=no)
223    
224    # Handle --enable-pcregrep-libbz2
225    AC_ARG_ENABLE(pcregrep-libbz2,
226                  AS_HELP_STRING([--enable-pcregrep-libbz2],
227                                 [link pcregrep with libbz2 to handle .bz2 files]),
228                  , enable_pcregrep_libbz2=no)
229    
230    # Handle --with-pcregrep-bufsize=N
231    AC_ARG_WITH(pcregrep-bufsize,
232                  AS_HELP_STRING([--with-pcregrep-bufsize=N],
233                                 [pcregrep buffer size (default=20480)]),
234                  , with_pcregrep_bufsize=20480)
235    
236    # Handle --enable-pcretest-libreadline
237    AC_ARG_ENABLE(pcretest-libreadline,
238                  AS_HELP_STRING([--enable-pcretest-libreadline],
239                                 [link pcretest with libreadline]),
240                  , enable_pcretest_libreadline=no)
241    
242  # Handle --with-posix-malloc-threshold=NBYTES  # Handle --with-posix-malloc-threshold=NBYTES
243  AC_ARG_WITH(posix-malloc-threshold,  AC_ARG_WITH(posix-malloc-threshold,
244              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],              AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
# Line 179  AC_ARG_WITH(match-limit-recursion, Line 270  AC_ARG_WITH(match-limit-recursion,
270                             [default limit on internal recursion (default=MATCH_LIMIT)]),                             [default limit on internal recursion (default=MATCH_LIMIT)]),
271              , with_match_limit_recursion=MATCH_LIMIT)              , with_match_limit_recursion=MATCH_LIMIT)
272    
273  # Make sure that if enable_unicode_properties was set, that UTF-8 support  # Copy enable_utf8 value to enable_utf for compatibility reasons
274  # is enabled.  if test "x$enable_utf8" != "xunset"
275  #  then
276      if test "x$enable_utf" != "xunset"
277      then
278        AC_MSG_ERROR([--enable/disable-utf8 is kept only for compatibility reasons and its value is copied to --enable/disable-utf. Newer code must use --enable/disable-utf alone.])
279      fi
280      enable_utf=$enable_utf8
281    fi
282    
283    # Set the default value for pcre8
284    if test "x$enable_pcre8" = "xunset"
285    then
286      enable_pcre8=yes
287    fi
288    
289    # Set the default value for pcre16
290    if test "x$enable_pcre16" = "xunset"
291    then
292      enable_pcre16=no
293    fi
294    
295    # Make sure enable_pcre8 or enable_pcre16 was set
296    if test "x$enable_pcre8$enable_pcre16" = "xnono"
297    then
298      AC_MSG_ERROR([Either 8 or 16 bit (or both) pcre library must be enabled])
299    fi
300    
301    # Make sure that if enable_unicode_properties was set, that UTF support is enabled.
302  if test "x$enable_unicode_properties" = "xyes"  if test "x$enable_unicode_properties" = "xyes"
303  then  then
304    if test "x$enable_utf8" = "xno"    if test "x$enable_utf" = "xno"
305    then    then
306      AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])      AC_MSG_ERROR([support for Unicode properties requires UTF-8/16 support])
307    fi    fi
308    enable_utf8=yes    enable_utf=yes
309    fi
310    
311    # enable_utf is disabled by default.
312    if test "x$enable_utf" = "xunset"
313    then
314      enable_utf=no
315  fi  fi
316    
317  if test "x$enable_utf8" = "xunset"  # enable_cpp copies the value of enable_pcre8 by default
318    if test "x$enable_cpp" = "xunset"
319  then  then
320    enable_utf8=no    enable_cpp=$enable_pcre8
321    fi
322    
323    # Make sure that if enable_cpp was set, that enable_pcre8 support is enabled
324    if test "x$enable_cpp" = "xyes"
325    then
326      if test "x$enable_pcre8" = "xno"
327      then
328        AC_MSG_ERROR([C++ library requires pcre library with 8 bit characters])
329      fi
330  fi  fi
331    
332  # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.  # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
333    # Also check that UTF support is not requested, because PCRE cannot handle
334    # EBCDIC and UTF in the same build. To do so it would need to use different
335    # character constants depending on the mode.
336  #  #
337  if test "x$enable_ebcdic" = "xyes"  if test "x$enable_ebcdic" = "xyes"
338  then  then
339    enable_rebuild_chartables=yes    enable_rebuild_chartables=yes
340      if test "x$enable_utf" = "xyes"
341      then
342        AC_MSG_ERROR([support for EBCDIC and UTF-8/16 cannot be enabled at the same time])
343      fi
344  fi  fi
345    
346  # Convert the newline identifier into the appropriate integer value.  # Convert the newline identifier into the appropriate integer value.
# Line 231  it to run on SunOS4 and other "close to Line 371  it to run on SunOS4 and other "close to
371    
372  If you are going to build PCRE "by hand" on a system without "configure" you  If you are going to build PCRE "by hand" on a system without "configure" you
373  should copy the distributed config.h.generic to config.h, and then set up the  should copy the distributed config.h.generic to config.h, and then set up the
374  macros the way you need them. Alternatively, you can avoid editing by using -D  macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to
375  on the compiler command line to set the macro values.  all of your compile commands, so that config.h is included at the start of
376    every source.
377    
378    Alternatively, you can avoid editing by using -D on the compiler command line
379    to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
380    
381  PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if  PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
382  HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set  HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
# Line 249  if test "x$enable_cpp" = "xyes" -a -n "$ Line 393  if test "x$enable_cpp" = "xyes" -a -n "$
393  then  then
394  AC_LANG_PUSH(C++)  AC_LANG_PUSH(C++)
395    
396    # Older versions of pcre defined pcrecpp::no_arg, but in new versions
397    # it's called pcrecpp::RE::no_arg.  For backwards ABI compatibility,
398    # we want to make one an alias for the other.  Different systems do
399    # this in different ways.  Some systems, for instance, can do it via
400    # a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
401    OLD_LDFLAGS="$LDFLAGS"
402    for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
403                "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
404      AC_MSG_CHECKING([for alias support in the linker])
405      LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
406      # We try to run the linker with this new ld flag.  If the link fails,
407      # we give up and remove the new flag from LDFLAGS.
408      AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace pcrecpp {
409                                        class RE { static int no_arg; };
410                                        int RE::no_arg;
411                                      }],
412                                     [])],
413                     [AC_MSG_RESULT([yes]);
414                      EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
415                      break;],
416                     AC_MSG_RESULT([no]))
417    done
418    LDFLAGS="$OLD_LDFLAGS"
419    
420  # 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
421  # (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
422  # 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.
# Line 258  AC_CHECK_HEADERS(bits/type_traits.h, [pc Line 426  AC_CHECK_HEADERS(bits/type_traits.h, [pc
426                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
427  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
428                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
429    
430    # (This isn't c++-specific, but is only used in pcrecpp.cc, so try this
431    # in a c++ context.  This matters becuase strtoimax is C99 and may not
432    # be supported by the C++ compiler.)
433    # Figure out how to create a longlong from a string: strtoll and
434    # equiv.  It's not enough to call AC_CHECK_FUNCS: hpux has a
435    # strtoll, for instance, but it only takes 2 args instead of 3!
436    # We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex.
437    AH_TEMPLATE(HAVE_STRTOQ, [Define to 1 if you have `strtoq'.])
438    AH_TEMPLATE(HAVE_STRTOLL, [Define to 1 if you have `strtoll'.])
439    AH_TEMPLATE(HAVE__STRTOI64, [Define to 1 if you have `_strtoi64'.])
440    AH_TEMPLATE(HAVE_STRTOIMAX, [Define to 1 if you have `strtoimax'.])
441    have_strto_fn=0
442    for fn in strtoq strtoll _strtoi64 strtoimax; do
443      AC_MSG_CHECKING([for $fn])
444      if test "$fn" = strtoimax; then
445        include=stdint.h
446      else
447        include=stdlib.h
448      fi
449      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <$include>],
450                                        [char* e; return $fn("100", &e, 10)])],
451                        [AC_MSG_RESULT(yes)
452                         AC_DEFINE_UNQUOTED(HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`, 1,
453                                            [Define to 1 if you have `$fn'.])
454                         have_strto_fn=1
455                         break],
456                        [AC_MSG_RESULT(no)])
457    done
458    
459    if test "$have_strto_fn" = 1; then
460      AC_CHECK_TYPES([long long],
461                     [pcre_have_long_long="1"],
462                     [pcre_have_long_long="0"])
463      AC_CHECK_TYPES([unsigned long long],
464                     [pcre_have_ulong_long="1"],
465                     [pcre_have_ulong_long="0"])
466    else
467      pcre_have_long_long="0"
468      pcre_have_ulong_long="0"
469    fi
470    AC_SUBST(pcre_have_long_long)
471    AC_SUBST(pcre_have_ulong_long)
472    
473  AC_LANG_POP  AC_LANG_POP
474  fi  fi
475  # Using AC_SUBST eliminates the need to include config.h in a public .h file  # Using AC_SUBST eliminates the need to include config.h in a public .h file
# Line 265  AC_SUBST(pcre_have_type_traits) Line 477  AC_SUBST(pcre_have_type_traits)
477  AC_SUBST(pcre_have_bits_type_traits)  AC_SUBST(pcre_have_bits_type_traits)
478    
479  # Conditional compilation  # Conditional compilation
480    AM_CONDITIONAL(WITH_PCRE8, test "x$enable_pcre8" = "xyes")
481    AM_CONDITIONAL(WITH_PCRE16, test "x$enable_pcre16" = "xyes")
482  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
483  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
484    AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
485    AM_CONDITIONAL(WITH_UTF, test "x$enable_utf" = "xyes")
486    
487  # Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
488    
489  AC_C_CONST  AC_C_CONST
490  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
491    
 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)  
   
492  # Checks for library functions.  # Checks for library functions.
493    
494  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror)
495    
496    # Check for the availability of libz (aka zlib)
497    
498    AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
499    AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
500    
501    # Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
502    # as for libz. However, this had the following problem, diagnosed and fixed by
503    # a user:
504    #
505    #   - libbz2 uses the Pascal calling convention (WINAPI) for the functions
506    #     under Win32.
507    #   - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
508    #     therefore missing the function definition.
509    #   - The compiler thus generates a "C" signature for the test function.
510    #   - The linker fails to find the "C" function.
511    #   - PCRE fails to configure if asked to do so against libbz2.
512    #
513    # Solution:
514    #
515    #   - Replace the AC_CHECK_LIB test with a custom test.
516    
517    AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
518    # Original test
519    # AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
520    #
521    # Custom test follows
522    
523    AC_MSG_CHECKING([for libbz2])
524    OLD_LIBS="$LIBS"
525    LIBS="$LIBS -lbz2"
526    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
527    #ifdef HAVE_BZLIB_H
528    #include <bzlib.h>
529    #endif]],
530    [[return (int)BZ2_bzopen("conftest", "rb");]])],
531    [AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;],
532    AC_MSG_RESULT([no]))
533    LIBS="$OLD_LIBS"
534    
535    # Check for the availabiity of libreadline
536    
537    AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
538    AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
539    AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1])
540    
541  # This facilitates -ansi builds under Linux  # This facilitates -ansi builds under Linux
542  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])  dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
543    
544    PCRE_STATIC_CFLAG=""
545  if test "x$enable_shared" = "xno" ; then  if test "x$enable_shared" = "xno" ; then
546    AC_DEFINE([PCRE_STATIC], [1], [    AC_DEFINE([PCRE_STATIC], [1], [
547      Define if linking statically (TODO: make nice with Libtool)])      Define if linking statically (TODO: make nice with Libtool)])
548      PCRE_STATIC_CFLAG="-DPCRE_STATIC"
549  fi  fi
550    AC_SUBST(PCRE_STATIC_CFLAG)
551    
552  # Here is where pcre specific defines are handled  # Here is where pcre specific defines are handled
553    
554  if test "$enable_utf8" = "yes"; then  if test "$enable_pcre8" = "yes"; then
555    AC_DEFINE([SUPPORT_UTF8], [], [    AC_DEFINE([SUPPORT_PCRE8], [], [
556      Define to enable support for the UTF-8 Unicode encoding.])      Define to enable the 8 bit PCRE library.])
557    fi
558    
559    if test "$enable_pcre16" = "yes"; then
560      AC_DEFINE([SUPPORT_PCRE16], [], [
561        Define to enable the 16 bit PCRE library.])
562    fi
563    
564    if test "$enable_jit" = "yes"; then
565      AC_DEFINE([SUPPORT_JIT], [], [
566        Define to enable support for Just-In-Time compiling.])
567    else
568      enable_pcregrep_jit="no"
569    fi
570    
571    if test "$enable_pcregrep_jit" = "yes"; then
572      AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [
573        Define to enable JIT support in pcregrep.])
574    fi
575    
576    if test "$enable_utf" = "yes"; then
577      AC_DEFINE([SUPPORT_UTF], [], [
578        Define to enable support for the UTF-8/16 Unicode encoding. This
579        will work even in an EBCDIC environment, but it is incompatible
580        with the EBCDIC macro. That is, PCRE can support *either* EBCDIC
581        code *or* ASCII/UTF-8/16, but not both at once.])
582  fi  fi
583    
584  if test "$enable_unicode_properties" = "yes"; then  if test "$enable_unicode_properties" = "yes"; then
585    AC_DEFINE([SUPPORT_UCP], [], [    AC_DEFINE([SUPPORT_UCP], [], [
586      Define to enable support for Unicode properties])      Define to enable support for Unicode properties.])
587  fi  fi
588    
589  if test "$enable_stack_for_recursion" = "no"; then  if test "$enable_stack_for_recursion" = "no"; then
# Line 319  if test "$enable_stack_for_recursion" = Line 599  if test "$enable_stack_for_recursion" =
599      (use --disable-stack-for-recursion).])      (use --disable-stack-for-recursion).])
600  fi  fi
601    
602    if test "$enable_pcregrep_libz" = "yes"; then
603      AC_DEFINE([SUPPORT_LIBZ], [], [
604        Define to allow pcregrep to be linked with libz, so that it is
605        able to handle .gz files.])
606    fi
607    
608    if test "$enable_pcregrep_libbz2" = "yes"; then
609      AC_DEFINE([SUPPORT_LIBBZ2], [], [
610        Define to allow pcregrep to be linked with libbz2, so that it is
611        able to handle .bz2 files.])
612    fi
613    
614    if test $with_pcregrep_bufsize -lt 8192 ; then
615      with_pcregrep_bufsize="8192"
616    fi
617    
618    AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [
619      The value of PCREGREP_BUFSIZE determines the size of buffer used by
620      pcregrep to hold parts of the file it is searching. On systems that
621      support it, "configure" can be used to override the default, which is
622      8192. This is also the minimum value. The actual amount of memory used by
623      pcregrep is three times this number, because it allows for the buffering of
624      "before" and "after" lines.])
625    
626    if test "$enable_pcretest_libreadline" = "yes"; then
627      AC_DEFINE([SUPPORT_LIBREADLINE], [], [
628        Define to allow pcretest to be linked with libreadline.])
629    fi
630    
631  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
632    The value of NEWLINE determines the newline character sequence. On    The value of NEWLINE determines the newline character sequence. On
633    Unix-like systems, "configure" can be used to override the default,    systems that support it, "configure" can be used to override the
634    which is 10. The possible values are 10 (LF), 13 (CR), 3338 (CRLF),    default, which is 10. The possible values are 10 (LF), 13 (CR),
635    -1 (ANY), or -2 (ANYCRLF).])    3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).])
636    
637    if test "$enable_bsr_anycrlf" = "yes"; then
638      AC_DEFINE([BSR_ANYCRLF], [], [
639        By default, the \R escape sequence matches any Unicode line ending
640        character or sequence of characters. If BSR_ANYCRLF is defined, this is
641        changed so that backslash-R matches only CR, LF, or CRLF. The build-
642        time default can be overridden by the user of PCRE at runtime. On
643        systems that support it, "configure" can be used to override the
644        default.])
645    fi
646    
647  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
648    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 376  AC_DEFINE([MAX_NAME_COUNT], [10000], [ Line 695  AC_DEFINE([MAX_NAME_COUNT], [10000], [
695    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
696    against integer overflow caused by enormously large patterns.])    against integer overflow caused by enormously large patterns.])
697    
 AC_DEFINE([MAX_DUPLENGTH], [30000], [  
   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.])  
   
698  AH_VERBATIM([PCRE_EXP_DEFN], [  AH_VERBATIM([PCRE_EXP_DEFN], [
699  /* 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
700     Win32, and it needs some magic to be inserted before the definition     Win32, and it needs some magic to be inserted before the definition
# Line 397  if test "$enable_ebcdic" = "yes"; then Line 711  if test "$enable_ebcdic" = "yes"; then
711    AC_DEFINE_UNQUOTED([EBCDIC], [], [    AC_DEFINE_UNQUOTED([EBCDIC], [], [
712      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
713      character codes, define this macro as 1. On systems that can use      character codes, define this macro as 1. On systems that can use
714      "configure", this can be done via --enable-ebcdic.])      "configure", this can be done via --enable-ebcdic. PCRE will then
715        assume that all input strings are in EBCDIC. If you do not define
716        this macro, PCRE will assume input strings are ASCII or UTF-8/16
717        Unicode. It is not possible to build a version of PCRE that
718        supports both EBCDIC and UTF-8/16.])
719  fi  fi
720    
721  # Platform specific issues  # Platform specific issues
# Line 415  esac Line 733  esac
733  # The extra LDFLAGS for each particular library  # The extra LDFLAGS for each particular library
734  # (Note: The libpcre*_version bits are m4 variables, assigned above)  # (Note: The libpcre*_version bits are m4 variables, assigned above)
735    
736  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"  EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
737                           $NO_UNDEFINED -version-info libpcre_version"
738    
739    EXTRA_LIBPCRE16_LDFLAGS="$EXTRA_LIBPCRE16_LDFLAGS \
740                           $NO_UNDEFINED -version-info libpcre16_version"
741    
742  EXTRA_LIBPCREPOSIX_LDFLAGS="$NO_UNDEFINED -version-info libpcreposix_version"  EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
743                                $NO_UNDEFINED -version-info libpcreposix_version"
744    
745  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
746                              $NO_UNDEFINED -version-info libpcrecpp_version \
747                              $EXPORT_ALL_SYMBOLS"
748    
749  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
750    AC_SUBST(EXTRA_LIBPCRE16_LDFLAGS)
751  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
752  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
753    
754  # When we run 'make distcheck', use these arguments.  # When we run 'make distcheck', use these arguments.
755  DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"  DISTCHECK_CONFIGURE_FLAGS="--enable-pcre16 --enable-jit --enable-cpp --enable-unicode-properties"
756  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)  AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
757    
758    # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
759    # specified, the relevant library is available.
760    
761    if test "$enable_pcregrep_libz" = "yes"; then
762      if test "$HAVE_ZLIB_H" != "1"; then
763        echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
764        exit 1
765      fi
766      if test "$HAVE_LIBZ" != "1"; then
767        echo "** Cannot --enable-pcregrep-libz because libz was not found"
768        exit 1
769      fi
770      LIBZ="-lz"
771    fi
772    AC_SUBST(LIBZ)
773    
774    if test "$enable_pcregrep_libbz2" = "yes"; then
775      if test "$HAVE_BZLIB_H" != "1"; then
776        echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
777        exit 1
778      fi
779      if test "$HAVE_LIBBZ2" != "1"; then
780        echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
781        exit 1
782      fi
783      LIBBZ2="-lbz2"
784    fi
785    AC_SUBST(LIBBZ2)
786    
787    # Similarly for --enable-pcretest-readline
788    
789    if test "$enable_pcretest_libreadline" = "yes"; then
790      if test "$HAVE_READLINE_H" != "1"; then
791        echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
792        exit 1
793      fi
794      if test "$HAVE_HISTORY_H" != "1"; then
795        echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
796        exit 1
797      fi
798      LIBREADLINE="-lreadline"
799    fi
800    AC_SUBST(LIBREADLINE)
801    
802  # Produce these files, in addition to config.h.  # Produce these files, in addition to config.h.
803  AC_CONFIG_FILES(  AC_CONFIG_FILES(
804          Makefile          Makefile
805          libpcre.pc          libpcre.pc
806            libpcre16.pc
807            libpcreposix.pc
808          libpcrecpp.pc          libpcrecpp.pc
809          pcre-config          pcre-config
810          pcre.h          pcre.h
# Line 451  AC_OUTPUT Line 823  AC_OUTPUT
823    
824  # Print out a nice little message after configure is run displaying your  # Print out a nice little message after configure is run displaying your
825  # chosen options.  # chosen options.
826  #  
827  cat <<EOF  cat <<EOF
828    
829  $PACKAGE-$VERSION configuration summary:  $PACKAGE-$VERSION configuration summary:
830    
831      Install prefix ......... : ${prefix}      Install prefix .................. : ${prefix}
832      C preprocessor ......... : ${CPP}      C preprocessor .................. : ${CPP}
833      C compiler ............. : ${CC}      C compiler ...................... : ${CC}
834      C++ preprocessor ....... : ${CXXCPP}      C++ preprocessor ................ : ${CXXCPP}
835      C++ compiler ........... : ${CXX}      C++ compiler .................... : ${CXX}
836      Linker ................. : ${LD}      Linker .......................... : ${LD}
837      C preprocessor flags ... : ${CPPFLAGS}      C preprocessor flags ............ : ${CPPFLAGS}
838      C compiler flags ....... : ${CFLAGS}      C compiler flags ................ : ${CFLAGS}
839      C++ compiler flags ..... : ${CXXFLAGS}      C++ compiler flags .............. : ${CXXFLAGS}
840      Linker flags ........... : ${LDFLAGS}      Linker flags .................... : ${LDFLAGS}
841      Extra libraries ........ : ${LIBS}      Extra libraries ................. : ${LIBS}
842    
843      Build C++ library ...... : ${enable_cpp}      Build 8 bit pcre library ........ : ${enable_pcre8}
844      Enable UTF-8 support ... : ${enable_utf8}      Build 16 bit pcre library ....... : ${enable_pcre16}
845      Unicode properties ..... : ${enable_unicode_properties}      Build C++ library ............... : ${enable_cpp}
846      Newline char/sequence .. : ${enable_newline}      Enable JIT compiling support .... : ${enable_jit}
847      EBCDIC coding .......... : ${enable_ebcdic}      Enable UTF-8/16 support ......... : ${enable_utf}
848      Rebuild char tables .... : ${enable_rebuild_chartables}      Unicode properties .............. : ${enable_unicode_properties}
849      Use stack recursion .... : ${enable_stack_for_recursion}      Newline char/sequence ........... : ${enable_newline}
850      POSIX mem threshold .... : ${with_posix_malloc_threshold}      \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
851      Internal link size ..... : ${with_link_size}      EBCDIC coding ................... : ${enable_ebcdic}
852      Match limit ............ : ${with_match_limit}      Rebuild char tables ............. : ${enable_rebuild_chartables}
853      Match limit recursion .. : ${with_match_limit_recursion}      Use stack recursion ............. : ${enable_stack_for_recursion}
854      Build shared libs ...... : ${enable_shared}      POSIX mem threshold ............. : ${with_posix_malloc_threshold}
855      Build static libs ...... : ${enable_static}      Internal link size .............. : ${with_link_size}
856        Match limit ..................... : ${with_match_limit}
857        Match limit recursion ........... : ${with_match_limit_recursion}
858        Build shared libs ............... : ${enable_shared}
859        Build static libs ............... : ${enable_static}
860        Use JIT in pcregrep ............. : ${enable_pcregrep_jit}
861        Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
862        Link pcregrep with libz ......... : ${enable_pcregrep_libz}
863        Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
864        Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
865    
866  EOF  EOF
867    

Legend:
Removed from v.198  
changed lines
  Added in v.886

  ViewVC Help
Powered by ViewVC 1.1.5