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revision 89 by nigel, Sat Feb 24 21:41:27 2007 UTC revision 100 by ph10, Tue Mar 6 14:53:10 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.h.in is converted by "configure" into config.h.
171    Some other environments also support the use of "configure". PCRE is written in
172    Standard C, but there are a few non-standard things it can cope with, allowing
173    it to run on SunOS4 and other "close to standard" systems.
174    
175    On a system without "configure" you should use the distributed config.h, and
176    set up the macros the way you need them.
177    
178    If your system has bcopy() and not memmove(), change the definitions of
179    HAVE_BCOPY and HAVE_MEMMOVE. If your system has neither bcopy() nor memmove(),
180    leave them both undefined; an emulation function will be used. */])
181    
182    # Checks for header files.
183  AC_HEADER_STDC  AC_HEADER_STDC
184  AC_CHECK_HEADERS(limits.h)  AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h)
185    
186  dnl The files below are C++ header files. One person told me (PH) that  # The files below are C++ header files.
187  dnl AC_LANG_CPLUSPLUS unsets CXX if it was explicitly set to something which  pcre_have_type_traits="0"
188  dnl doesn't work. However, this doesn't always seem to be the case.  pcre_have_bits_type_traits="0"
189    if test "x$enable_cpp" = "xyes" -a -n "$CXX"
 if test "x$want_cpp" = "xyes" -a -n "$CXX"  
190  then  then
191  AC_LANG_SAVE  AC_LANG_PUSH(C++)
 AC_LANG_CPLUSPLUS  
192    
193  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
194  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
195  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.
196  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
197                           [pcre_have_cpp_headers="0"])                           [pcre_have_cpp_headers="0"])
198  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"],
199                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
200  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
201                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
202  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  
203  fi  fi
204    # Using AC_SUBST eliminates the need to include config.h in a public .h file
205    AC_SUBST(pcre_have_type_traits)
206    AC_SUBST(pcre_have_bits_type_traits)
207    
208  dnl From the above, we now have enough info to know if C++ is fully installed  # Conditional compilation
209  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='$(CPP_TARGETS)'  
   HAVE_CPP=  
 else  
   MAYBE_CPP_TARGETS=  
   HAVE_CPP="#"  
 fi  
 AC_SUBST(MAYBE_CPP_TARGETS)  
 AC_SUBST(HAVE_CPP)  
210    
211  dnl Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
212    
213  AC_C_CONST  AC_C_CONST
214  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
215    
216  AC_CHECK_TYPES([long long], [pcre_have_long_long="1"], [pcre_have_long_long="0"])  AC_CHECK_TYPES([long long],
217  AC_CHECK_TYPES([unsigned long long], [pcre_have_ulong_long="1"], [pcre_have_ulong_long="0"])                 [pcre_have_long_long="1"],
218                   [pcre_have_long_long="0"])
219    AC_CHECK_TYPES([unsigned long long],
220                   [pcre_have_ulong_long="1"],
221                   [pcre_have_ulong_long="0"])
222  AC_SUBST(pcre_have_long_long)  AC_SUBST(pcre_have_long_long)
223  AC_SUBST(pcre_have_ulong_long)  AC_SUBST(pcre_have_ulong_long)
224    
225  dnl Checks for library functions.  # Checks for library functions.
226    
227  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)
228    
229  dnl Handle --enable-utf8  # This facilitates -ansi builds under Linux
230    dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
231    
232  AC_ARG_ENABLE(utf8,  if test "x$enable_shared" = "xno" ; then
233  [  --enable-utf8           enable UTF8 support],    AC_DEFINE([PCRE_STATIC], [1], [
234  if test "$enableval" = "yes"; then      Define if linking statically (TODO: make nice with Libtool)])
   UTF8=-DSUPPORT_UTF8  
235  fi  fi
 )  
236    
237  dnl Handle --enable-unicode-properties  # Here is where pcre specific defines are handled
238    
239  AC_ARG_ENABLE(unicode-properties,  if test "$enable_utf8" = "yes"; then
240  [  --enable-unicode-properties  enable Unicode properties support],    AC_DEFINE([SUPPORT_UTF8], [], [
241  if test "$enableval" = "yes"; then      Define to enable support for the UTF-8 Unicode encoding.])
   UCP=-DSUPPORT_UCP  
242  fi  fi
 )  
   
 dnl Handle --enable-newline-is-cr  
243    
244  AC_ARG_ENABLE(newline-is-cr,  if test "$enable_unicode_properties" = "yes"; then
245  [  --enable-newline-is-cr  use CR as the newline character],    AC_DEFINE([SUPPORT_UCP], [], [
246  if test "$enableval" = "yes"; then      Define to enable support for Unicode properties])
   NEWLINE=-DNEWLINE=13  
247  fi  fi
 )  
   
 dnl Handle --enable-newline-is-lf  
248    
249  AC_ARG_ENABLE(newline-is-lf,  if test "$enable_stack_for_recursion" = "no"; then
250  [  --enable-newline-is-lf  use LF as the newline character],    AC_DEFINE([NO_RECURSE], [], [
251  if test "$enableval" = "yes"; then      PCRE uses recursive function calls to handle backtracking while
252    NEWLINE=-DNEWLINE=10      matching.  This can sometimes be a problem on systems that have
253        stacks of limited size. Define NO_RECURSE to get a version that
254        doesn't use recursion in the match() function; instead it creates
255        its own stack by steam using pcre_recurse_malloc() to obtain memory
256        from the heap. For more detail, see the comments and other stuff
257        just above the match() function. On systems that support it,
258        "configure" can be used to set this in the Makefile
259        (use --disable-stack-for-recursion).])
260  fi  fi
 )  
   
 dnl Handle --enable-ebcdic  
261    
262  AC_ARG_ENABLE(ebcdic,  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
263  [  --enable-ebcdic         assume EBCDIC coding rather than ASCII],    The value of NEWLINE determines the newline character. On Unix-like
264  if test "$enableval" == "yes"; then    systems, "configure" can be used to override the default.])
265    EBCDIC=-DEBCDIC=1  
266  fi  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
267  )    The value of LINK_SIZE determines the number of bytes used to store
268      links as offsets within the compiled regex. The default is 2, which
269  dnl Handle --disable-stack-for-recursion    allows for compiled patterns up to 64K long. This covers the vast
270      majority of cases. However, PCRE can also be compiled to use 3 or 4
271  AC_ARG_ENABLE(stack-for-recursion,    bytes instead. This allows for longer patterns in extreme cases. On
272  [  --disable-stack-for-recursion  disable use of stack recursion when matching],    systems that support it, "configure" can be used to override this default.])
273  if test "$enableval" = "no"; then  
274    NO_RECURSE=-DNO_RECURSE  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
275      When calling PCRE via the POSIX interface, additional working storage
276      is required for holding the pointers to capturing substrings because
277      PCRE requires three integers per substring, whereas the POSIX
278      interface provides only two. If the number of expected substrings is
279      small, the wrapper function uses space on the stack, because this is
280      faster than using malloc() for each call. The threshold above which
281      the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On
282      systems that support it, "configure" can be used to override this
283      default.])
284    
285    AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
286      The value of MATCH_LIMIT determines the default number of times the
287      internal match() function can be called during a single execution of
288      pcre_exec(). There is a runtime interface for setting a different
289      limit. The limit exists in order to catch runaway regular
290      expressions that take for ever to determine that they do not match.
291      The default is set very large so that it does not accidentally catch
292      legitimate cases. On systems that support it, "configure" can be
293      used to override this default default.])
294    
295    AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
296      The above limit applies to all calls of match(), whether or not they
297      increase the recursion depth. In some environments it is desirable
298      to limit the depth of recursive calls of match() more strictly, in
299      order to restrict the maximum amount of stack (or heap, if
300      NO_RECURSE is defined) that is used. The value of
301      MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
302      have any useful effect, it must be less than the value of
303      MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
304      There is a runtime method for setting a different limit. On systems
305      that support it, "configure" can be used to override the default.])
306    
307    AC_DEFINE([MAX_NAME_SIZE], [32], [
308      This limit is parameterized just in case anybody ever wants to
309      change it. Care must be taken if it is increased, because it guards
310      against integer overflow caused by enormously large patterns.])
311    
312    AC_DEFINE([MAX_NAME_COUNT], [10000], [
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_DUPLENGTH], [30000], [
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    AH_VERBATIM([PCRE_DATA_SCOPE], [
323    /* If you are compiling for a system other than a Unix-like system or
324       Win32, and it needs some magic to be inserted before the definition
325       of a function that is exported by the library, define this macro to
326       contain the relevant magic. If you do not define this macro, it
327       defaults to "extern" for a C compiler and "extern C" for a C++
328       compiler on non-Win32 systems. This macro apears at the start of
329       every exported function that is part of the external API. It does
330       not appear on functions that are "external" in the C sense, but
331       which are internal to the library. */
332    #undef PCRE_DATA_SCOPE])
333    
334    if test "$enable_ebcdic" = "yes"; then
335      AC_DEFINE_UNQUOTED([EBCDIC], [], [
336        If you are compiling for a system that uses EBCDIC instead of ASCII
337        character codes, define this macro as 1. On systems that can use
338        "configure", this can be done via --enable-ebcdic.])
339  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.  
340    
341  dnl Handle --with-posix-malloc-threshold=n  # Here is where pcre specific substs are handled
342    # These 3 are only used by RunTest.in.
343  AC_ARG_WITH(posix-malloc-threshold,  # TODO: remove once RunTest uses pcretest -C instead.
344  [  --with-posix-malloc-threshold=10  threshold for POSIX malloc usage],  AC_SUBST(LINK_SIZE, $with_link_size)
345    POSIX_MALLOC_THRESHOLD=-DPOSIX_MALLOC_THRESHOLD=$withval  AC_SUBST(UTF8, $enable_utf8)
346  )  AC_SUBST(UCP, $enable_unicode_properties)
347    
348  dnl Handle --with-link-size=n  # Platform specific issues
349    NO_UNDEFINED=
350    EXPORT_ALL_SYMBOLS=
351    case $host_os in
352      cygwin* | mingw* )
353        if test X"$enable_shared" = Xyes; then
354          NO_UNDEFINED="-no-undefined"
355          EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
356        fi
357        ;;
358    esac
359    
360  AC_ARG_WITH(link-size,  # The extra LDFLAGS for each particular library
361  [  --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=$withval  
 )  
362    
363  dnl Handle --with-match-limit=n  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"
364    
365  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  
 )  
366    
367  dnl Handle --with-match-limit_recursion=n  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"
368    
369  AC_ARG_WITH(match-limit-recursion,  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
370  [  --with-match-limit-recursion=10000000  default limit on internal recursion],  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
371    MATCH_LIMIT_RECURSION=-DMATCH_LIMIT_RECURSION=$withval  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
372    
373    # When we run 'make distcheck', use these arguments.
374    DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"
375    AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
376    
377    # Produce these files, in addition to config.h.
378    AC_CONFIG_FILES(
379            Makefile
380            RunGrepTest
381            RunTest
382            libpcre.pc
383            libpcrecpp.pc
384            pcre-config
385            pcre.h
386            pcre_stringpiece.h
387            pcrecpparg.h
388  )  )
389    
390  dnl Unicode character property support implies UTF-8 support  # Make the generated script files executable.
391    AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])
392    
393  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)  
394    
395  dnl Stuff to make MinGW work better. Special treatment is no longer  # Print out a nice little message after configure is run displaying your
396  dnl needed for Cygwin.  # chosen options.
397    #
398  case $host_os in  cat <<EOF
399  mingw* )  
400      POSIX_OBJ=pcreposix.o  $PACKAGE-$VERSION configuration summary:
401      POSIX_LOBJ=pcreposix.lo  
402      POSIX_LIB=      Install prefix ......... : ${prefix}
403      ON_WINDOWS=      C preprocessor ......... : ${CPP}
404      NOT_ON_WINDOWS="#"      C compiler ............. : ${CC}
405      WIN_PREFIX=      C++ preprocessor ....... : ${CXXCPP}
406      ;;      C++ compiler ........... : ${CXX}
407  * )      Linker ................. : ${LD}
408      ON_WINDOWS="#"      C preprocessor flags ... : ${CPPFLAGS}
409      NOT_ON_WINDOWS=      C compiler flags ....... : ${CFLAGS}
410      POSIX_OBJ=      C++ compiler flags ..... : ${CXXFLAGS}
411      POSIX_LOBJ=      Linker flags ........... : ${LDFLAGS}
412      POSIX_LIB=libpcreposix.la      Extra libraries ........ : ${LIBS}
413      WIN_PREFIX=  
414      ;;      Build C++ library ...... : ${enable_cpp}
415  esac      Enable UTF-8 support ... : ${enable_utf8}
416  AC_SUBST(WIN_PREFIX)      Unicode properties ..... : ${enable_unicode_properties}
417  AC_SUBST(ON_WINDOWS)      Newline char/sequence .. : ${enable_newline}
418  AC_SUBST(NOT_ON_WINDOWS)      EBCDIC coding .......... : ${enable_ebcdic}
419  AC_SUBST(POSIX_OBJ)      Use stack recursion .... : ${enable_stack_for_recursion}
420  AC_SUBST(POSIX_LOBJ)      POSIX mem threshold .... : ${with_posix_malloc_threshold}
421  AC_SUBST(POSIX_LIB)      Internal link size ..... : ${with_link_size}
422        Match limit ............ : ${with_match_limit}
423        Match limit recursion .. : ${with_match_limit_recursion}
424        Build shared libs ...... : ${enable_shared}
425        Build static libs ...... : ${enable_static}
426    
427  if test "x$enable_shared" = "xno" ; then  EOF
     AC_DEFINE([PCRE_STATIC],[1],[to link statically])  
 fi  
428    
429  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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