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revision 89 by nigel, Sat Feb 24 21:41:27 2007 UTC revision 99 by ph10, Tue Mar 6 12:27:42 2007 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 This configure.in file has been hacked around quite a lot as a result of  dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with
4  dnl patches that various people have sent to me (PH). Sometimes the information  dnl leading zeros, because they may be treated as octal constants. The
5  dnl I get is contradictory. I've tried to put in comments that explain things,  dnl PCRE_PRERELEASE feature is for identifying release candidates. It might
6  dnl but in some cases the information is second-hand and I have no way of  dnl be defined as -RC2, for example. For real releases, it should be defined
7  dnl verifying it. I am not an autoconf or libtool expert!  dnl empty.
8    
9  dnl This is required at the start; the name is the name of a file  m4_define(pcre_major, [7])
10  dnl it should be seeing, to verify it is in the same directory.  m4_define(pcre_minor, [1])
11    m4_define(pcre_prerelease, [-RC1])
12  AC_INIT(dftables.c)  m4_define(pcre_date, [2007-03-05])
13  AC_CONFIG_SRCDIR([pcre.h])  
14    # Libtool shared library interface versions (current:revision:age)
15  dnl A safety precaution  m4_define(libpcre_version, [0:1:0])
16    m4_define(libpcreposix_version, [0:0:0])
17    m4_define(libpcrecpp_version, [0:0:0])
18    
19  AC_PREREQ(2.57)  AC_PREREQ(2.57)
20    AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)
21    AC_CONFIG_SRCDIR([pcre.h.in])
22    AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
23    AC_CONFIG_HEADERS(config.h)
24    AC_PROG_CC
25    AC_PROG_CXX
26    AC_PROG_INSTALL
27    AC_LIBTOOL_WIN32_DLL
28    AC_PROG_LIBTOOL
29    
30  dnl Arrange to build config.h from config.h.in.  PCRE_MAJOR="pcre_major"
31  dnl Manual says this macro should come right after AC_INIT.  PCRE_MINOR="pcre_minor"
32  AC_CONFIG_HEADER(config.h)  PCRE_PRERELEASE="pcre_prerelease"
33    PCRE_DATE="pcre_date"
34  dnl Default values for miscellaneous macros  
35    AC_SUBST(PCRE_MAJOR)
36  POSIX_MALLOC_THRESHOLD=-DPOSIX_MALLOC_THRESHOLD=10  AC_SUBST(PCRE_MINOR)
37    AC_SUBST(PCRE_PRERELEASE)
38    AC_SUBST(PCRE_DATE)
39    
40  dnl Provide versioning information for libtool shared libraries that  # Set a more sensible default value for $(htmldir).
41  dnl are built by default on Unix systems.  if test "x$htmldir" = 'x${docdir}'
42    then
43      htmldir='${docdir}/html'
44    fi
45    
46  PCRE_LIB_VERSION=0:1:0  # Handle --disable-cpp
47  PCRE_POSIXLIB_VERSION=0:0:0  AC_ARG_ENABLE(cpp,
48  PCRE_CPPLIB_VERSION=0:0:0                AS_HELP_STRING([--disable-cpp],
49                                 [disable C++ support]),
50                  , enable_cpp=yes)
51    
52  dnl Find the PCRE version from the pcre.h file. The PCRE_VERSION variable is  # Handle --enable-utf8 (disabled by default)
53  dnl substituted in pcre-config.in.  AC_ARG_ENABLE(utf8,
54                  AS_HELP_STRING([--enable-utf8],
55                                 [enable UTF-8 support]),
56                  , enable_utf8=unset)
57    
58  PCRE_MAJOR=`grep '#define PCRE_MAJOR' ${srcdir}/pcre.h | cut -c 29-`  # Handle --enable-unicode-properties
59  PCRE_MINOR=`grep '#define PCRE_MINOR' ${srcdir}/pcre.h | cut -c 29-`  AC_ARG_ENABLE(unicode-properties,
60  PCRE_PRERELEASE=`grep '#define PCRE_PRERELEASE' ${srcdir}/pcre.h | cut -c 29-`                AS_HELP_STRING([--enable-unicode-properties],
61  PCRE_VERSION=${PCRE_MAJOR}.${PCRE_MINOR}${PCRE_PRERELEASE}                               [enable Unicode properties support (implies --enable-utf8)]),
62                  , enable_unicode_properties=no)
63    
64    # Handle --enable-newline=NL
65    dnl AC_ARG_ENABLE(newline,
66    dnl               AS_HELP_STRING([--enable-newline=NL],
67    dnl                              [use NL as newline (lf, cr, crlf, any; default=lf)]),
68    dnl               , enable_newline=lf)
69    
70  dnl Handle --disable-cpp  # Separate newline options
71    ac_pcre_newline=lf
72    AC_ARG_ENABLE(newline-is-cr,
73                  AS_HELP_STRING([--enable-newline-is-cr],
74                                 [use CR as newline character]),
75                  ac_pcre_newline=cr)
76    AC_ARG_ENABLE(newline-is-lf,
77                  AS_HELP_STRING([--enable-newline-is-lf],
78                                 [use LF as newline character (default)]),
79                  ac_pcre_newline=lf)
80    AC_ARG_ENABLE(newline-is-crlf,
81                  AS_HELP_STRING([--enable-newline-is-crlf],
82                                 [use CRLF as newline sequence]),
83                  ac_pcre_newline=crlf)
84    AC_ARG_ENABLE(newline-is-any,
85                  AS_HELP_STRING([--enable-newline-is-any],
86                                 [use any valid Unicode newline sequence]),
87                  ac_pcre_newline=any)
88    enable_newline="$ac_pcre_newline"
89    
90  AC_ARG_ENABLE(cpp,  # Handle --enable-ebcdic
91  [  --disable-cpp           disable C++ support],  AC_ARG_ENABLE(ebcdic,
92  want_cpp="$enableval", want_cpp=yes)                AS_HELP_STRING([--enable-ebcdic],
93                                 [assume EBCDIC coding rather than ASCII]),
94                  , enable_ebcdic=no)
95    
96  dnl Checks for programs.  # Handle --disable-stack-for-recursion
97    AC_ARG_ENABLE(stack-for-recursion,
98                  AS_HELP_STRING([--disable-stack-for-recursion],
99                                 [don't use stack recursion when matching]),
100                  , enable_stack_for_recursion=yes)
101    
102  AC_PROG_CC  # Handle --with-posix-malloc-threshold=NBYTES
103    AC_ARG_WITH(posix-malloc-threshold,
104                AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
105                               [threshold for POSIX malloc usage (default=10)]),
106                , with_posix_malloc_threshold=10)
107    
108  dnl Test for C++ for the C++ wrapper libpcrecpp. It seems, however, that  # Handle --with-link-size=N
109  dnl AC_PROC_CXX will set $CXX to "g++" when no C++ compiler is installed, even  AC_ARG_WITH(link-size,
110  dnl though that is completely bogus. (This may happen only on certain systems              AS_HELP_STRING([--with-link-size=N],
111  dnl with certain versions of autoconf, of course.) An attempt to include this                             [internal link size (2, 3, or 4 allowed; default=2)]),
112  dnl test inside a check for want_cpp was criticized by a libtool expert, who              , with_link_size=2)
 dnl tells me that it isn't allowed.  
113    
114  AC_PROG_CXX  # Handle --with-match-limit=N
115    AC_ARG_WITH(match-limit,
116                AS_HELP_STRING([--with-match-limit=N],
117                               [default limit on internal looping (default=10000000)]),
118                , with_match_limit=10000000)
119    
120    # Handle --with-match-limit_recursion=N
121    #
122    # Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
123    # symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
124    # value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
125    # different numeric value (or even the same numeric value as MATCH_LIMIT,
126    # though no longer defined in terms of the latter).
127    #
128    AC_ARG_WITH(match-limit-recursion,
129                AS_HELP_STRING([--with-match-limit-recursion=N],
130                               [default limit on internal recursion (default=MATCH_LIMIT)]),
131                , with_match_limit_recursion=MATCH_LIMIT)
132    
133    # Make sure that if enable_unicode_properties was set, that UTF-8 support
134    # is enabled.
135    #
136    if test "x$enable_unicode_properties" = "xyes"
137    then
138      if test "x$enable_utf8" = "xno"
139      then
140        AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])
141      fi
142      enable_utf8=yes
143    fi
144    
145  dnl The icc compiler has the same options as gcc, so let the rest of the  if test "x$enable_utf8" = "xunset"
146  dnl configure script think it has gcc when setting up dnl options etc.  then
147  dnl This is a nasty hack which no longer seems necessary with the update    enable_utf8=no
148  dnl to the latest libtool files, so I have commented it out.  fi
 dnl  
 dnl if test "$CC" = "icc" ; then GCC=yes ; fi  
149    
150  AC_PROG_INSTALL  # Convert the newline identifier into the appropriate integer value.
151  AC_LIBTOOL_WIN32_DLL  case "$enable_newline" in
152  AC_PROG_LIBTOOL    lf)   ac_pcre_newline_value=10   ;;
153      cr)   ac_pcre_newline_value=13   ;;
154      crlf) ac_pcre_newline_value=3338 ;;
155      any)  ac_pcre_newline_value=-1   ;;
156      *)
157      AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
158      ;;
159    esac
160    
161  dnl We need to find a compiler for compiling a program to run on the local host  # Check argument to --with-link-size
162  dnl while building. It needs to be different from CC when cross-compiling.  case "$with_link_size" in
163  dnl There is a macro called AC_PROG_CC_FOR_BUILD in the GNU archive for    2|3|4) ;;
164  dnl figuring this out automatically. Unfortunately, it does not work with the    *)
165  dnl latest versions of autoconf. So for the moment, we just default to the    AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option])
166  dnl same values as the "main" compiler. People who are cross-compiling will    ;;
167  dnl just have to adjust the Makefile by hand or set these values when they  esac
 dnl run "configure".  
   
 CC_FOR_BUILD=${CC_FOR_BUILD:-'$(CC)'}  
 CXX_FOR_BUILD=${CXX_FOR_BUILD:-'$(CXX)'}  
 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD:-'$(CFLAGS)'}  
 CPPFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD:-'$(CPPFLAGS)'}  
 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD:-'$(CXXFLAGS)'}  
 BUILD_EXEEXT=${BUILD_EXEEXT:-'$(EXEEXT)'}  
 BUILD_OBJEXT=${BUILD_OBJEXT:-'$(OBJEXT)'}  
168    
169  dnl Checks for header files.  AH_TOP([
170    /* On Unix-like systems config.in is converted by "configure" into
171    config.h.  Some other environments also support the use of "configure".
172    PCRE is written in Standard C, but there are a few non-standard things
173    it can cope with, allowing it to run on SunOS4 and other "close to
174    standard" systems.
175    
176    On a non-Unix-like system you should just copy this file into config.h,
177    and set up the macros the way you need them.  You should normally change
178    the definitions of HAVE_STRERROR and HAVE_MEMMOVE to 1.  Unfortunately,
179    because of the way autoconf works, these cannot be made the defaults.
180    If your system has bcopy() and not memmove(), change the definition of
181    HAVE_BCOPY instead of HAVE_MEMMOVE.  If your system has neither bcopy()
182    nor memmove(), leave them both as 0; an emulation function will be
183    used. */])
184    
185    # Checks for header files.
186  AC_HEADER_STDC  AC_HEADER_STDC
187  AC_CHECK_HEADERS(limits.h)  AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h)
188    
189  dnl The files below are C++ header files. One person told me (PH) that  # The files below are C++ header files.
190  dnl AC_LANG_CPLUSPLUS unsets CXX if it was explicitly set to something which  pcre_have_type_traits="0"
191  dnl doesn't work. However, this doesn't always seem to be the case.  pcre_have_bits_type_traits="0"
192    if test "x$enable_cpp" = "xyes" -a -n "$CXX"
 if test "x$want_cpp" = "xyes" -a -n "$CXX"  
193  then  then
194  AC_LANG_SAVE  AC_LANG_PUSH(C++)
 AC_LANG_CPLUSPLUS  
195    
196  dnl 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
197  dnl (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
198  dnl 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.
199  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
200                           [pcre_have_cpp_headers="0"])                           [pcre_have_cpp_headers="0"])
201  AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"],  AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"],
202                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
203  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
204                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
205  dnl Using AC_SUBST eliminates the need to include config.h in a public .h file  AC_LANG_POP
 AC_SUBST(pcre_have_bits_type_traits)  
 AC_SUBST(pcre_have_type_traits)  
 AC_LANG_RESTORE  
206  fi  fi
207    # Using AC_SUBST eliminates the need to include config.h in a public .h file
208    AC_SUBST(pcre_have_type_traits)
209    AC_SUBST(pcre_have_bits_type_traits)
210    
211  dnl From the above, we now have enough info to know if C++ is fully installed  # Conditional compilation
212  if test "x$want_cpp" = "xyes" -a -n "$CXX" -a "$pcre_have_cpp_headers" = 1; then  AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
   MAYBE_CPP_TARGETS='$(CPP_TARGETS)'  
   HAVE_CPP=  
 else  
   MAYBE_CPP_TARGETS=  
   HAVE_CPP="#"  
 fi  
 AC_SUBST(MAYBE_CPP_TARGETS)  
 AC_SUBST(HAVE_CPP)  
213    
214  dnl Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
215    
216  AC_C_CONST  AC_C_CONST
217  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
218    
219  AC_CHECK_TYPES([long long], [pcre_have_long_long="1"], [pcre_have_long_long="0"])  AC_CHECK_TYPES([long long],
220  AC_CHECK_TYPES([unsigned long long], [pcre_have_ulong_long="1"], [pcre_have_ulong_long="0"])                 [pcre_have_long_long="1"],
221                   [pcre_have_long_long="0"])
222    AC_CHECK_TYPES([unsigned long long],
223                   [pcre_have_ulong_long="1"],
224                   [pcre_have_ulong_long="0"])
225  AC_SUBST(pcre_have_long_long)  AC_SUBST(pcre_have_long_long)
226  AC_SUBST(pcre_have_ulong_long)  AC_SUBST(pcre_have_ulong_long)
227    
228  dnl Checks for library functions.  # Checks for library functions.
229    
230  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)
231    
232  dnl Handle --enable-utf8  # This facilitates -ansi builds under Linux
233    dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
234    
235  AC_ARG_ENABLE(utf8,  if test "x$enable_shared" = "xno" ; then
236  [  --enable-utf8           enable UTF8 support],    AC_DEFINE([PCRE_STATIC], [1], [
237  if test "$enableval" = "yes"; then      Define if linking statically (TODO: make nice with Libtool)])
   UTF8=-DSUPPORT_UTF8  
238  fi  fi
 )  
239    
240  dnl Handle --enable-unicode-properties  # Here is where pcre specific defines are handled
241    
242  AC_ARG_ENABLE(unicode-properties,  if test "$enable_utf8" = "yes"; then
243  [  --enable-unicode-properties  enable Unicode properties support],    AC_DEFINE([SUPPORT_UTF8], [], [
244  if test "$enableval" = "yes"; then      Define to enable support for the UTF-8 Unicode encoding.])
   UCP=-DSUPPORT_UCP  
245  fi  fi
 )  
   
 dnl Handle --enable-newline-is-cr  
246    
247  AC_ARG_ENABLE(newline-is-cr,  if test "$enable_unicode_properties" = "yes"; then
248  [  --enable-newline-is-cr  use CR as the newline character],    AC_DEFINE([SUPPORT_UCP], [], [
249  if test "$enableval" = "yes"; then      Define to enable support for Unicode properties])
   NEWLINE=-DNEWLINE=13  
250  fi  fi
 )  
   
 dnl Handle --enable-newline-is-lf  
251    
252  AC_ARG_ENABLE(newline-is-lf,  if test "$enable_stack_for_recursion" = "no"; then
253  [  --enable-newline-is-lf  use LF as the newline character],    AC_DEFINE([NO_RECURSE], [], [
254  if test "$enableval" = "yes"; then      PCRE uses recursive function calls to handle backtracking while
255    NEWLINE=-DNEWLINE=10      matching.  This can sometimes be a problem on systems that have
256        stacks of limited size.  Define NO_RECURSE to get a version that
257        doesn't use recursion in the match() function; instead it creates
258        its own stack by steam using pcre_recurse_malloc() to obtain memory
259        from the heap. For more detail, see the comments and other stuff
260        just above the match() function. On systems that support it,
261        "configure" can be used to set this in the Makefile
262        (use --disable-stack-for-recursion).])
263  fi  fi
 )  
   
 dnl Handle --enable-ebcdic  
264    
265  AC_ARG_ENABLE(ebcdic,  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
266  [  --enable-ebcdic         assume EBCDIC coding rather than ASCII],    The value of NEWLINE determines the newline character. The default is
267  if test "$enableval" == "yes"; then    to leave it up to the compiler, but some sites want to force a
268    EBCDIC=-DEBCDIC=1    particular value.  On Unix-like systems, "configure" can be used to
269  fi    override this default.])
270  )  
271    AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
272  dnl Handle --disable-stack-for-recursion    The value of LINK_SIZE determines the number of bytes used to store
273      links as offsets within the compiled regex. The default is 2, which
274  AC_ARG_ENABLE(stack-for-recursion,    allows for compiled patterns up to 64K long. This covers the vast
275  [  --disable-stack-for-recursion  disable use of stack recursion when matching],    majority of cases. However, PCRE can also be compiled to use 3 or 4
276  if test "$enableval" = "no"; then    bytes instead. This allows for longer patterns in extreme cases. On
277    NO_RECURSE=-DNO_RECURSE    systems that support it, "configure" can be used to override this default.])
278    
279    AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
280      When calling PCRE via the POSIX interface, additional working storage
281      is required for holding the pointers to capturing substrings because
282      PCRE requires three integers per substring, whereas the POSIX
283      interface provides only two. If the number of expected substrings is
284      small, the wrapper function uses space on the stack, because this is
285      faster than using malloc() for each call. The threshold above which
286      the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On
287      systems that support it, "configure" can be used to override this
288      default.])
289    
290    AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
291      The value of MATCH_LIMIT determines the default number of times the
292      internal match() function can be called during a single execution of
293      pcre_exec().  There is a runtime interface for setting a different
294      limit. The limit exists in order to catch runaway regular
295      expressions that take for ever to determine that they do not match.
296      The default is set very large so that it does not accidentally catch
297      legitimate cases. On systems that support it, "configure" can be
298      used to override this default default.])
299    
300    AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
301      The above limit applies to all calls of match(), whether or not they
302      increase the recursion depth. In some environments it is desirable
303      to limit the depth of recursive calls of match() more strictly, in
304      order to restrict the maximum amount of stack (or heap, if
305      NO_RECURSE is defined) that is used. The value of
306      MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
307      have any useful effect, it must be less than the value of
308      MATCH_LIMIT. There is a runtime method for setting a different
309      limit. On systems that support it, "configure" can be used to
310      override this default default.])
311    
312    AC_DEFINE([MAX_NAME_SIZE], [32], [
313      This limit is parameterized just in case anybody ever wants to
314      change it. Care must be taken if it is increased, because it guards
315      against integer overflow caused by enormously large patterns.])
316    
317    AC_DEFINE([MAX_NAME_COUNT], [10000], [
318      This limit is parameterized just in case anybody ever wants to
319      change it. Care must be taken if it is increased, because it guards
320      against integer overflow caused by enormously large patterns.])
321    
322    AC_DEFINE([MAX_DUPLENGTH], [30000], [
323      This limit is parameterized just in case anybody ever wants to
324      change it. Care must be taken if it is increased, because it guards
325      against integer overflow caused by enormously large patterns.])
326    
327    AH_VERBATIM([PCRE_DATA_SCOPE], [
328    /* If you are compiling for a system other than a Unix-like system or
329       Win32, and it needs some magic to be inserted before the definition
330       of a function that is exported by the library, define this macro to
331       contain the relevant magic. If you do not define this macro, it
332       defaults to "extern" for a C compiler and "extern C" for a C++
333       compiler on non-Win32 systems. This macro apears at the start of
334       every exported function that is part of the external API. It does
335       not appear on functions that are "external" in the C sense, but
336       which are internal to the library. */
337    #undef PCRE_DATA_SCOPE])
338    
339    if test "$enable_ebcdic" = "yes"; then
340      AC_DEFINE_UNQUOTED([EBCDIC], [], [
341        If you are compiling for a system that uses EBCDIC instead of ASCII
342        character codes, define this macro as 1. On systems that can use
343        "configure", this can be done via --enable-ebcdic.])
344  fi  fi
 )  
   
 dnl There doesn't seem to be a straightforward way of having parameters  
 dnl that set values, other than fudging the --with thing. So that's what  
 dnl I've done.  
345    
346  dnl Handle --with-posix-malloc-threshold=n  # Here is where pcre specific substs are handled
347    # These 3 are only used by RunTest.in.
348  AC_ARG_WITH(posix-malloc-threshold,  # TODO: remove once RunTest uses pcretest -C instead.
349  [  --with-posix-malloc-threshold=10  threshold for POSIX malloc usage],  AC_SUBST(LINK_SIZE, $with_link_size)
350    POSIX_MALLOC_THRESHOLD=-DPOSIX_MALLOC_THRESHOLD=$withval  AC_SUBST(UTF8, $enable_utf8)
351  )  AC_SUBST(UCP, $enable_unicode_properties)
352    
353  dnl Handle --with-link-size=n  # Platform specific issues
354    NO_UNDEFINED=
355    EXPORT_ALL_SYMBOLS=
356    case $host_os in
357      cygwin* | mingw* )
358        if test X"$enable_shared" = Xyes; then
359          NO_UNDEFINED="-no-undefined"
360          EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
361        fi
362        ;;
363    esac
364    
365  AC_ARG_WITH(link-size,  # The extra LDFLAGS for each particular library
366  [  --with-link-size=2    internal link size (2, 3, or 4 allowed)],  # (Note: The libpcre*_version bits are m4 variables, assigned above)
   LINK_SIZE=-DLINK_SIZE=$withval  
 )  
367    
368  dnl Handle --with-match-limit=n  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"
369    
370  AC_ARG_WITH(match-limit,  EXTRA_LIBPCREPOSIX_LDFLAGS="$NO_UNDEFINED -version-info libpcreposix_version"
 [  --with-match-limit=10000000  default limit on internal looping],  
   MATCH_LIMIT=-DMATCH_LIMIT=$withval  
 )  
371    
372  dnl Handle --with-match-limit_recursion=n  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"
373    
374  AC_ARG_WITH(match-limit-recursion,  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
375  [  --with-match-limit-recursion=10000000  default limit on internal recursion],  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
376    MATCH_LIMIT_RECURSION=-DMATCH_LIMIT_RECURSION=$withval  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
377    
378    # When we run 'make distcheck', use these arguments.
379    DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"
380    AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
381    
382    # Produce these files, in addition to config.h.
383    AC_CONFIG_FILES(
384            Makefile
385            RunGrepTest
386            RunTest
387            libpcre.pc
388            libpcrecpp.pc
389            pcre-config
390            pcre.h
391            pcre_stringpiece.h
392            pcrecpparg.h
393  )  )
394    
395  dnl Unicode character property support implies UTF-8 support  # Make the generated script files executable.
396    AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])
397    
398  if test "$UCP" != "" ; then  AC_OUTPUT
   UTF8=-DSUPPORT_UTF8  
 fi  
   
 dnl "Export" these variables  
   
 AC_SUBST(BUILD_EXEEXT)  
 AC_SUBST(BUILD_OBJEXT)  
 AC_SUBST(CC_FOR_BUILD)  
 AC_SUBST(CXX_FOR_BUILD)  
 AC_SUBST(CFLAGS_FOR_BUILD)  
 AC_SUBST(CXXFLAGS_FOR_BUILD)  
 AC_SUBST(CXXLDFLAGS)  
 AC_SUBST(EBCDIC)  
 AC_SUBST(HAVE_MEMMOVE)  
 AC_SUBST(HAVE_STRERROR)  
 AC_SUBST(LINK_SIZE)  
 AC_SUBST(MATCH_LIMIT)  
 AC_SUBST(MATCH_LIMIT_RECURSION)  
 AC_SUBST(NEWLINE)  
 AC_SUBST(NO_RECURSE)  
 AC_SUBST(PCRE_LIB_VERSION)  
 AC_SUBST(PCRE_POSIXLIB_VERSION)  
 AC_SUBST(PCRE_CPPLIB_VERSION)  
 AC_SUBST(PCRE_VERSION)  
 AC_SUBST(POSIX_MALLOC_THRESHOLD)  
 AC_SUBST(UCP)  
 AC_SUBST(UTF8)  
399    
400  dnl Stuff to make MinGW work better. Special treatment is no longer  # Print out a nice little message after configure is run displaying your
401  dnl needed for Cygwin.  # chosen options.
402    #
403  case $host_os in  cat <<EOF
404  mingw* )  
405      POSIX_OBJ=pcreposix.o  $PACKAGE-$VERSION configuration summary:
406      POSIX_LOBJ=pcreposix.lo  
407      POSIX_LIB=      Install prefix ......... : ${prefix}
408      ON_WINDOWS=      C preprocessor ......... : ${CPP}
409      NOT_ON_WINDOWS="#"      C compiler ............. : ${CC}
410      WIN_PREFIX=      C++ preprocessor ....... : ${CXXCPP}
411      ;;      C++ compiler ........... : ${CXX}
412  * )      Linker ................. : ${LD}
413      ON_WINDOWS="#"      C preprocessor flags ... : ${CPPFLAGS}
414      NOT_ON_WINDOWS=      C compiler flags ....... : ${CFLAGS}
415      POSIX_OBJ=      C++ compiler flags ..... : ${CXXFLAGS}
416      POSIX_LOBJ=      Linker flags ........... : ${LDFLAGS}
417      POSIX_LIB=libpcreposix.la      Extra libraries ........ : ${LIBS}
418      WIN_PREFIX=  
419      ;;      Build C++ library ...... : ${enable_cpp}
420  esac      Enable UTF-8 support ... : ${enable_utf8}
421  AC_SUBST(WIN_PREFIX)      Unicode properties ..... : ${enable_unicode_properties}
422  AC_SUBST(ON_WINDOWS)      Newline char/sequence .. : ${enable_newline}
423  AC_SUBST(NOT_ON_WINDOWS)      EBCDIC coding .......... : ${enable_ebcdic}
424  AC_SUBST(POSIX_OBJ)      Use stack recursion .... : ${enable_stack_for_recursion}
425  AC_SUBST(POSIX_LOBJ)      POSIX mem threshold .... : ${with_posix_malloc_threshold}
426  AC_SUBST(POSIX_LIB)      Internal link size ..... : ${with_link_size}
427        Match limit ............ : ${with_match_limit}
428        Match limit recursion .. : ${with_match_limit_recursion}
429        Build shared libs ...... : ${enable_shared}
430        Build static libs ...... : ${enable_static}
431    
432  if test "x$enable_shared" = "xno" ; then  EOF
     AC_DEFINE([PCRE_STATIC],[1],[to link statically])  
 fi  
433    
434  dnl This must be last; it determines what files are written as well as config.h  dnl end configure.ac
 AC_OUTPUT(Makefile pcre-config:pcre-config.in libpcre.pc:libpcre.pc.in pcrecpparg.h:pcrecpparg.h.in pcre_stringpiece.h:pcre_stringpiece.h.in RunGrepTest:RunGrepTest.in RunTest:RunTest.in,[chmod a+x RunTest RunGrepTest pcre-config])  

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