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revision 89 by nigel, Sat Feb 24 21:41:27 2007 UTC revision 135 by ph10, Thu Mar 29 09:09:33 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, [-RC4])
12  AC_INIT(dftables.c)  m4_define(pcre_date, [2007-03-29])
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    AC_SUBST(PCRE_MINOR)
37    AC_SUBST(PCRE_PRERELEASE)
38    AC_SUBST(PCRE_DATE)
39    
40  POSIX_MALLOC_THRESHOLD=-DPOSIX_MALLOC_THRESHOLD=10  # Set a more sensible default value for $(htmldir).
41    if test "x$htmldir" = 'x${docdir}'
42    then
43      htmldir='${docdir}/html'
44    fi
45    
46  dnl Provide versioning information for libtool shared libraries that  # Handle --disable-cpp
47  dnl are built by default on Unix systems.  AC_ARG_ENABLE(cpp,
48                  AS_HELP_STRING([--disable-cpp],
49                                 [disable C++ support]),
50                  , enable_cpp=yes)
51    
52    # Handle --enable-rebuild-chartables
53    AC_ARG_ENABLE(rebuild-chartables,
54                  AS_HELP_STRING([--enable-rebuild-chartables],
55                                 [rebuild character tables in current locale]),
56                  , enable_rebuild_chartables=no)
57    
58  PCRE_LIB_VERSION=0:1:0  # Handle --enable-utf8 (disabled by default)
59  PCRE_POSIXLIB_VERSION=0:0:0  AC_ARG_ENABLE(utf8,
60  PCRE_CPPLIB_VERSION=0:0:0                AS_HELP_STRING([--enable-utf8],
61                                 [enable UTF-8 support]),
62                  , enable_utf8=unset)
63    
64  dnl Find the PCRE version from the pcre.h file. The PCRE_VERSION variable is  # Handle --enable-unicode-properties
65  dnl substituted in pcre-config.in.  AC_ARG_ENABLE(unicode-properties,
66                  AS_HELP_STRING([--enable-unicode-properties],
67                                 [enable Unicode properties support (implies --enable-utf8)]),
68                  , enable_unicode_properties=no)
69    
70    # Handle --enable-newline=NL
71    dnl AC_ARG_ENABLE(newline,
72    dnl               AS_HELP_STRING([--enable-newline=NL],
73    dnl                              [use NL as newline (lf, cr, crlf, any; default=lf)]),
74    dnl               , enable_newline=lf)
75    
76  PCRE_MAJOR=`grep '#define PCRE_MAJOR' ${srcdir}/pcre.h | cut -c 29-`  # Separate newline options
77  PCRE_MINOR=`grep '#define PCRE_MINOR' ${srcdir}/pcre.h | cut -c 29-`  ac_pcre_newline=lf
78  PCRE_PRERELEASE=`grep '#define PCRE_PRERELEASE' ${srcdir}/pcre.h | cut -c 29-`  AC_ARG_ENABLE(newline-is-cr,
79  PCRE_VERSION=${PCRE_MAJOR}.${PCRE_MINOR}${PCRE_PRERELEASE}                AS_HELP_STRING([--enable-newline-is-cr],
80                                 [use CR as newline character]),
81                  ac_pcre_newline=cr)
82    AC_ARG_ENABLE(newline-is-lf,
83                  AS_HELP_STRING([--enable-newline-is-lf],
84                                 [use LF as newline character (default)]),
85                  ac_pcre_newline=lf)
86    AC_ARG_ENABLE(newline-is-crlf,
87                  AS_HELP_STRING([--enable-newline-is-crlf],
88                                 [use CRLF as newline sequence]),
89                  ac_pcre_newline=crlf)
90    AC_ARG_ENABLE(newline-is-any,
91                  AS_HELP_STRING([--enable-newline-is-any],
92                                 [use any valid Unicode newline sequence]),
93                  ac_pcre_newline=any)
94    enable_newline="$ac_pcre_newline"
95    
96  dnl Handle --disable-cpp  # Handle --enable-ebcdic
97    AC_ARG_ENABLE(ebcdic,
98                  AS_HELP_STRING([--enable-ebcdic],
99                                 [assume EBCDIC coding rather than ASCII (implies --enable-rebuild-chartables)]),
100                  , enable_ebcdic=no)
101    
102  AC_ARG_ENABLE(cpp,  # Handle --disable-stack-for-recursion
103  [  --disable-cpp           disable C++ support],  AC_ARG_ENABLE(stack-for-recursion,
104  want_cpp="$enableval", want_cpp=yes)                AS_HELP_STRING([--disable-stack-for-recursion],
105                                 [don't use stack recursion when matching]),
106                  , enable_stack_for_recursion=yes)
107    
108  dnl Checks for programs.  # Handle --with-posix-malloc-threshold=NBYTES
109    AC_ARG_WITH(posix-malloc-threshold,
110                AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
111                               [threshold for POSIX malloc usage (default=10)]),
112                , with_posix_malloc_threshold=10)
113    
114  AC_PROG_CC  # Handle --with-link-size=N
115    AC_ARG_WITH(link-size,
116                AS_HELP_STRING([--with-link-size=N],
117                               [internal link size (2, 3, or 4 allowed; default=2)]),
118                , with_link_size=2)
119    
120  dnl Test for C++ for the C++ wrapper libpcrecpp. It seems, however, that  # Handle --with-match-limit=N
121  dnl AC_PROC_CXX will set $CXX to "g++" when no C++ compiler is installed, even  AC_ARG_WITH(match-limit,
122  dnl though that is completely bogus. (This may happen only on certain systems              AS_HELP_STRING([--with-match-limit=N],
123  dnl with certain versions of autoconf, of course.) An attempt to include this                             [default limit on internal looping (default=10000000)]),
124  dnl test inside a check for want_cpp was criticized by a libtool expert, who              , with_match_limit=10000000)
125  dnl tells me that it isn't allowed.  
126    # Handle --with-match-limit_recursion=N
127    #
128    # Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
129    # symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
130    # value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
131    # different numeric value (or even the same numeric value as MATCH_LIMIT,
132    # though no longer defined in terms of the latter).
133    #
134    AC_ARG_WITH(match-limit-recursion,
135                AS_HELP_STRING([--with-match-limit-recursion=N],
136                               [default limit on internal recursion (default=MATCH_LIMIT)]),
137                , with_match_limit_recursion=MATCH_LIMIT)
138    
139    # Make sure that if enable_unicode_properties was set, that UTF-8 support
140    # is enabled.
141    #
142    if test "x$enable_unicode_properties" = "xyes"
143    then
144      if test "x$enable_utf8" = "xno"
145      then
146        AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])
147      fi
148      enable_utf8=yes
149    fi
150    
151  AC_PROG_CXX  if test "x$enable_utf8" = "xunset"
152    then
153      enable_utf8=no
154    fi
155    
156  dnl The icc compiler has the same options as gcc, so let the rest of the  # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
157  dnl configure script think it has gcc when setting up dnl options etc.  #
158  dnl This is a nasty hack which no longer seems necessary with the update  if test "x$enable_ebcdie" = "xyes"
159  dnl to the latest libtool files, so I have commented it out.  then
160  dnl    enable_rebuild_chartables=yes
161  dnl if test "$CC" = "icc" ; then GCC=yes ; fi  fi
162    
163  AC_PROG_INSTALL  # Convert the newline identifier into the appropriate integer value.
164  AC_LIBTOOL_WIN32_DLL  case "$enable_newline" in
165  AC_PROG_LIBTOOL    lf)   ac_pcre_newline_value=10   ;;
166      cr)   ac_pcre_newline_value=13   ;;
167      crlf) ac_pcre_newline_value=3338 ;;
168      any)  ac_pcre_newline_value=-1   ;;
169      *)
170      AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
171      ;;
172    esac
173    
174  dnl We need to find a compiler for compiling a program to run on the local host  # Check argument to --with-link-size
175  dnl while building. It needs to be different from CC when cross-compiling.  case "$with_link_size" in
176  dnl There is a macro called AC_PROG_CC_FOR_BUILD in the GNU archive for    2|3|4) ;;
177  dnl figuring this out automatically. Unfortunately, it does not work with the    *)
178  dnl latest versions of autoconf. So for the moment, we just default to the    AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option])
179  dnl same values as the "main" compiler. People who are cross-compiling will    ;;
180  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)'}  
181    
182  dnl Checks for header files.  AH_TOP([
183    /* On Unix-like systems config.h.in is converted by "configure" into config.h.
184    Some other environments also support the use of "configure". PCRE is written in
185    Standard C, but there are a few non-standard things it can cope with, allowing
186    it to run on SunOS4 and other "close to standard" systems.
187    
188    If you are going to build PCRE "by hand" on a system without "configure" you
189    should copy the distributed config.h.generic to config.h, and then set up the
190    macros the way you need them. Alternatively, you can avoid editing by using -D
191    on the compiler command line to set the macro values.
192    
193    PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
194    HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
195    them both to 0; an emulation function will be used. */])
196    
197    # Checks for header files.
198  AC_HEADER_STDC  AC_HEADER_STDC
199  AC_CHECK_HEADERS(limits.h)  AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h)
   
 dnl The files below are C++ header files. One person told me (PH) that  
 dnl AC_LANG_CPLUSPLUS unsets CXX if it was explicitly set to something which  
 dnl doesn't work. However, this doesn't always seem to be the case.  
200    
201  if test "x$want_cpp" = "xyes" -a -n "$CXX"  # The files below are C++ header files.
202    pcre_have_type_traits="0"
203    pcre_have_bits_type_traits="0"
204    if test "x$enable_cpp" = "xyes" -a -n "$CXX"
205  then  then
206  AC_LANG_SAVE  AC_LANG_PUSH(C++)
 AC_LANG_CPLUSPLUS  
207    
208  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
209  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
210  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.
211  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],  AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
212                           [pcre_have_cpp_headers="0"])                           [pcre_have_cpp_headers="0"])
213  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"],
214                                       [pcre_have_bits_type_traits="0"])                                       [pcre_have_bits_type_traits="0"])
215  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],  AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
216                                  [pcre_have_type_traits="0"])                                  [pcre_have_type_traits="0"])
217  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  
218  fi  fi
219    # Using AC_SUBST eliminates the need to include config.h in a public .h file
220    AC_SUBST(pcre_have_type_traits)
221    AC_SUBST(pcre_have_bits_type_traits)
222    
223  dnl From the above, we now have enough info to know if C++ is fully installed  # Conditional compilation
224  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")
225    MAYBE_CPP_TARGETS='$(CPP_TARGETS)'  AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
   HAVE_CPP=  
 else  
   MAYBE_CPP_TARGETS=  
   HAVE_CPP="#"  
 fi  
 AC_SUBST(MAYBE_CPP_TARGETS)  
 AC_SUBST(HAVE_CPP)  
226    
227  dnl Checks for typedefs, structures, and compiler characteristics.  # Checks for typedefs, structures, and compiler characteristics.
228    
229  AC_C_CONST  AC_C_CONST
230  AC_TYPE_SIZE_T  AC_TYPE_SIZE_T
231    
232  AC_CHECK_TYPES([long long], [pcre_have_long_long="1"], [pcre_have_long_long="0"])  AC_CHECK_TYPES([long long],
233  AC_CHECK_TYPES([unsigned long long], [pcre_have_ulong_long="1"], [pcre_have_ulong_long="0"])                 [pcre_have_long_long="1"],
234                   [pcre_have_long_long="0"])
235    AC_CHECK_TYPES([unsigned long long],
236                   [pcre_have_ulong_long="1"],
237                   [pcre_have_ulong_long="0"])
238  AC_SUBST(pcre_have_long_long)  AC_SUBST(pcre_have_long_long)
239  AC_SUBST(pcre_have_ulong_long)  AC_SUBST(pcre_have_ulong_long)
240    
241  dnl Checks for library functions.  # Checks for library functions.
242    
243  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)  AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)
244    
245  dnl Handle --enable-utf8  # This facilitates -ansi builds under Linux
246    dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
247    
248  AC_ARG_ENABLE(utf8,  if test "x$enable_shared" = "xno" ; then
249  [  --enable-utf8           enable UTF8 support],    AC_DEFINE([PCRE_STATIC], [1], [
250  if test "$enableval" = "yes"; then      Define if linking statically (TODO: make nice with Libtool)])
   UTF8=-DSUPPORT_UTF8  
251  fi  fi
 )  
252    
253  dnl Handle --enable-unicode-properties  # Here is where pcre specific defines are handled
254    
255  AC_ARG_ENABLE(unicode-properties,  if test "$enable_utf8" = "yes"; then
256  [  --enable-unicode-properties  enable Unicode properties support],    AC_DEFINE([SUPPORT_UTF8], [], [
257  if test "$enableval" = "yes"; then      Define to enable support for the UTF-8 Unicode encoding.])
   UCP=-DSUPPORT_UCP  
258  fi  fi
 )  
   
 dnl Handle --enable-newline-is-cr  
259    
260  AC_ARG_ENABLE(newline-is-cr,  if test "$enable_unicode_properties" = "yes"; then
261  [  --enable-newline-is-cr  use CR as the newline character],    AC_DEFINE([SUPPORT_UCP], [], [
262  if test "$enableval" = "yes"; then      Define to enable support for Unicode properties])
   NEWLINE=-DNEWLINE=13  
263  fi  fi
 )  
   
 dnl Handle --enable-newline-is-lf  
264    
265  AC_ARG_ENABLE(newline-is-lf,  if test "$enable_stack_for_recursion" = "no"; then
266  [  --enable-newline-is-lf  use LF as the newline character],    AC_DEFINE([NO_RECURSE], [], [
267  if test "$enableval" = "yes"; then      PCRE uses recursive function calls to handle backtracking while
268    NEWLINE=-DNEWLINE=10      matching. This can sometimes be a problem on systems that have
269        stacks of limited size. Define NO_RECURSE to get a version that
270        doesn't use recursion in the match() function; instead it creates
271        its own stack by steam using pcre_recurse_malloc() to obtain memory
272        from the heap. For more detail, see the comments and other stuff
273        just above the match() function. On systems that support it,
274        "configure" can be used to set this in the Makefile
275        (use --disable-stack-for-recursion).])
276  fi  fi
 )  
277    
278  dnl Handle --enable-ebcdic  AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
279      The value of NEWLINE determines the newline character sequence. On
280  AC_ARG_ENABLE(ebcdic,    Unix-like systems, "configure" can be used to override the default,
281  [  --enable-ebcdic         assume EBCDIC coding rather than ASCII],    which is 10. The possible values are 10 (LF), 13 (CR), 3338 (CRLF),
282  if test "$enableval" == "yes"; then    or -1 (ANY).])
283    EBCDIC=-DEBCDIC=1  
284  fi  AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
285  )    The value of LINK_SIZE determines the number of bytes used to store
286      links as offsets within the compiled regex. The default is 2, which
287  dnl Handle --disable-stack-for-recursion    allows for compiled patterns up to 64K long. This covers the vast
288      majority of cases. However, PCRE can also be compiled to use 3 or 4
289  AC_ARG_ENABLE(stack-for-recursion,    bytes instead. This allows for longer patterns in extreme cases. On
290  [  --disable-stack-for-recursion  disable use of stack recursion when matching],    systems that support it, "configure" can be used to override this default.])
291  if test "$enableval" = "no"; then  
292    NO_RECURSE=-DNO_RECURSE  AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
293      When calling PCRE via the POSIX interface, additional working storage
294      is required for holding the pointers to capturing substrings because
295      PCRE requires three integers per substring, whereas the POSIX
296      interface provides only two. If the number of expected substrings is
297      small, the wrapper function uses space on the stack, because this is
298      faster than using malloc() for each call. The threshold above which
299      the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On
300      systems that support it, "configure" can be used to override this
301      default.])
302    
303    AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
304      The value of MATCH_LIMIT determines the default number of times the
305      internal match() function can be called during a single execution of
306      pcre_exec(). There is a runtime interface for setting a different
307      limit. The limit exists in order to catch runaway regular
308      expressions that take for ever to determine that they do not match.
309      The default is set very large so that it does not accidentally catch
310      legitimate cases. On systems that support it, "configure" can be
311      used to override this default default.])
312    
313    AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
314      The above limit applies to all calls of match(), whether or not they
315      increase the recursion depth. In some environments it is desirable
316      to limit the depth of recursive calls of match() more strictly, in
317      order to restrict the maximum amount of stack (or heap, if
318      NO_RECURSE is defined) that is used. The value of
319      MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
320      have any useful effect, it must be less than the value of
321      MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
322      There is a runtime method for setting a different limit. On systems
323      that support it, "configure" can be used to override the default.])
324    
325    AC_DEFINE([MAX_NAME_SIZE], [32], [
326      This limit is parameterized just in case anybody ever wants to
327      change it. Care must be taken if it is increased, because it guards
328      against integer overflow caused by enormously large patterns.])
329    
330    AC_DEFINE([MAX_NAME_COUNT], [10000], [
331      This limit is parameterized just in case anybody ever wants to
332      change it. Care must be taken if it is increased, because it guards
333      against integer overflow caused by enormously large patterns.])
334    
335    AC_DEFINE([MAX_DUPLENGTH], [30000], [
336      This limit is parameterized just in case anybody ever wants to
337      change it. Care must be taken if it is increased, because it guards
338      against integer overflow caused by enormously large patterns.])
339    
340    AH_VERBATIM([PCRE_DATA_SCOPE], [
341    /* If you are compiling for a system other than a Unix-like system or
342       Win32, and it needs some magic to be inserted before the definition
343       of a function that is exported by the library, define this macro to
344       contain the relevant magic. If you do not define this macro, it
345       defaults to "extern" for a C compiler and "extern C" for a C++
346       compiler on non-Win32 systems. This macro apears at the start of
347       every exported function that is part of the external API. It does
348       not appear on functions that are "external" in the C sense, but
349       which are internal to the library. */
350    #undef PCRE_DATA_SCOPE])
351    
352    if test "$enable_ebcdic" = "yes"; then
353      AC_DEFINE_UNQUOTED([EBCDIC], [], [
354        If you are compiling for a system that uses EBCDIC instead of ASCII
355        character codes, define this macro as 1. On systems that can use
356        "configure", this can be done via --enable-ebcdic.])
357  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.  
   
 dnl Handle --with-posix-malloc-threshold=n  
358    
359  AC_ARG_WITH(posix-malloc-threshold,  # Platform specific issues
360  [  --with-posix-malloc-threshold=10  threshold for POSIX malloc usage],  NO_UNDEFINED=
361    POSIX_MALLOC_THRESHOLD=-DPOSIX_MALLOC_THRESHOLD=$withval  EXPORT_ALL_SYMBOLS=
362  )  case $host_os in
363      cygwin* | mingw* )
364  dnl Handle --with-link-size=n      if test X"$enable_shared" = Xyes; then
365          NO_UNDEFINED="-no-undefined"
366          EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
367        fi
368        ;;
369    esac
370    
371  AC_ARG_WITH(link-size,  # The extra LDFLAGS for each particular library
372  [  --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=$withval  
 )  
373    
374  dnl Handle --with-match-limit=n  EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"
375    
376  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  
 )  
377    
378  dnl Handle --with-match-limit_recursion=n  EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"
379    
380  AC_ARG_WITH(match-limit-recursion,  AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
381  [  --with-match-limit-recursion=10000000  default limit on internal recursion],  AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
382    MATCH_LIMIT_RECURSION=-DMATCH_LIMIT_RECURSION=$withval  AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
383    
384    # When we run 'make distcheck', use these arguments.
385    DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"
386    AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
387    
388    # Produce these files, in addition to config.h.
389    AC_CONFIG_FILES(
390            Makefile
391            RunGrepTest
392            RunTest
393            libpcre.pc
394            libpcrecpp.pc
395            pcre-config
396            pcre.h
397            pcre_stringpiece.h
398            pcrecpparg.h
399  )  )
400    
401  dnl Unicode character property support implies UTF-8 support  # Make the generated script files executable.
402    AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])
 if test "$UCP" != "" ; then  
   UTF8=-DSUPPORT_UTF8  
 fi  
403    
404  dnl "Export" these variables  AC_OUTPUT
405    
406  AC_SUBST(BUILD_EXEEXT)  # Make sure that pcre_chartables.c is removed in case the method for
407  AC_SUBST(BUILD_OBJEXT)  # creating it was changed by reconfiguration.
 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)  
408    
409  dnl Stuff to make MinGW work better. Special treatment is no longer  rm -f pcre_chartables.c
410  dnl needed for Cygwin.  
411    # Print out a nice little message after configure is run displaying your
412  case $host_os in  # chosen options.
413  mingw* )  #
414      POSIX_OBJ=pcreposix.o  cat <<EOF
415      POSIX_LOBJ=pcreposix.lo  
416      POSIX_LIB=  $PACKAGE-$VERSION configuration summary:
417      ON_WINDOWS=  
418      NOT_ON_WINDOWS="#"      Install prefix ......... : ${prefix}
419      WIN_PREFIX=      C preprocessor ......... : ${CPP}
420      ;;      C compiler ............. : ${CC}
421  * )      C++ preprocessor ....... : ${CXXCPP}
422      ON_WINDOWS="#"      C++ compiler ........... : ${CXX}
423      NOT_ON_WINDOWS=      Linker ................. : ${LD}
424      POSIX_OBJ=      C preprocessor flags ... : ${CPPFLAGS}
425      POSIX_LOBJ=      C compiler flags ....... : ${CFLAGS}
426      POSIX_LIB=libpcreposix.la      C++ compiler flags ..... : ${CXXFLAGS}
427      WIN_PREFIX=      Linker flags ........... : ${LDFLAGS}
428      ;;      Extra libraries ........ : ${LIBS}
429  esac  
430  AC_SUBST(WIN_PREFIX)      Build C++ library ...... : ${enable_cpp}
431  AC_SUBST(ON_WINDOWS)      Enable UTF-8 support ... : ${enable_utf8}
432  AC_SUBST(NOT_ON_WINDOWS)      Unicode properties ..... : ${enable_unicode_properties}
433  AC_SUBST(POSIX_OBJ)      Newline char/sequence .. : ${enable_newline}
434  AC_SUBST(POSIX_LOBJ)      EBCDIC coding .......... : ${enable_ebcdic}
435  AC_SUBST(POSIX_LIB)      Rebuild char tables .... : ${enable_rebuild_chartables}
436        Use stack recursion .... : ${enable_stack_for_recursion}
437        POSIX mem threshold .... : ${with_posix_malloc_threshold}
438        Internal link size ..... : ${with_link_size}
439        Match limit ............ : ${with_match_limit}
440        Match limit recursion .. : ${with_match_limit_recursion}
441        Build shared libs ...... : ${enable_shared}
442        Build static libs ...... : ${enable_static}
443    
444  if test "x$enable_shared" = "xno" ; then  EOF
     AC_DEFINE([PCRE_STATIC],[1],[to link statically])  
 fi  
445    
446  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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