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Revision 351 - (hide annotations) (download)
Fri Jul 4 18:27:16 2008 UTC (6 years, 5 months ago) by ph10
File size: 24350 byte(s)
Final tidies for new Unicode property code; upgrade to Unicode 5.1.0.

1 nigel 87 dnl Process this file with autoconf to produce a configure script.
2    
3 ph10 99 dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with
4     dnl leading zeros, because they may be treated as octal constants. The
5     dnl PCRE_PRERELEASE feature is for identifying release candidates. It might
6     dnl be defined as -RC2, for example. For real releases, it should be defined
7     dnl empty.
8    
9 ph10 349 m4_define(pcre_major, [8])
10     m4_define(pcre_minor, [0])
11 ph10 351 m4_define(pcre_prerelease, [-RC0])
12     m4_define(pcre_date, [2008-07-04])
13 nigel 87
14 ph10 97 # Libtool shared library interface versions (current:revision:age)
15     m4_define(libpcre_version, [0:1:0])
16     m4_define(libpcreposix_version, [0:0:0])
17     m4_define(libpcrecpp_version, [0:0:0])
18 nigel 87
19 ph10 97 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 ph10 159
25     # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
26     # "-g" for any other compiler. There doesn't seem to be a standard way of
27     # getting rid of the -g (which I don't think is needed for a production
28     # library). This fudge seems to achieve the necessary. First, we remember the
29     # externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and
30     # AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not
31     # set, they will be set to Autoconf's defaults. Afterwards, if the original
32     # values were not set, remove the -g from the Autoconf defaults.
33     # (PH 02-May-07)
34    
35     remember_set_CFLAGS="$CFLAGS"
36     remember_set_CXXFLAGS="$CXXFLAGS"
37    
38 ph10 97 AC_PROG_CC
39     AC_PROG_CXX
40 ph10 159
41     if test "x$remember_set_CFLAGS" = "x"
42     then
43     if test "$CFLAGS" = "-g -O2"
44     then
45     CFLAGS="-O2"
46     elif test "$CFLAGS" = "-g"
47     then
48     CFLAGS=""
49     fi
50     fi
51    
52     if test "x$remember_set_CXXFLAGS" = "x"
53     then
54     if test "$CXXFLAGS" = "-g -O2"
55     then
56     CXXFLAGS="-O2"
57     elif test "$CXXFLAGS" = "-g"
58     then
59     CXXFLAGS=""
60     fi
61     fi
62    
63 ph10 330 # AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
64     # Check for that case, and just disable c++ code if g++ doesn't run.
65     AC_LANG_PUSH(C++)
66     AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[]),, CXX=""; CXXCP=""; CXXFLAGS="")
67     AC_LANG_POP
68 ph10 159
69 ph10 97 AC_PROG_INSTALL
70     AC_LIBTOOL_WIN32_DLL
71     AC_PROG_LIBTOOL
72 ph10 137 AC_PROG_LN_S
73 nigel 87
74 ph10 97 PCRE_MAJOR="pcre_major"
75     PCRE_MINOR="pcre_minor"
76     PCRE_PRERELEASE="pcre_prerelease"
77     PCRE_DATE="pcre_date"
78 nigel 87
79 ph10 97 AC_SUBST(PCRE_MAJOR)
80     AC_SUBST(PCRE_MINOR)
81     AC_SUBST(PCRE_PRERELEASE)
82     AC_SUBST(PCRE_DATE)
83 nigel 87
84 ph10 97 # Set a more sensible default value for $(htmldir).
85     if test "x$htmldir" = 'x${docdir}'
86     then
87     htmldir='${docdir}/html'
88     fi
89 nigel 87
90 ph10 97 # Handle --disable-cpp
91     AC_ARG_ENABLE(cpp,
92     AS_HELP_STRING([--disable-cpp],
93     [disable C++ support]),
94     , enable_cpp=yes)
95 nigel 87
96 ph10 128 # Handle --enable-rebuild-chartables
97     AC_ARG_ENABLE(rebuild-chartables,
98     AS_HELP_STRING([--enable-rebuild-chartables],
99     [rebuild character tables in current locale]),
100     , enable_rebuild_chartables=no)
101    
102 ph10 97 # Handle --enable-utf8 (disabled by default)
103     AC_ARG_ENABLE(utf8,
104     AS_HELP_STRING([--enable-utf8],
105     [enable UTF-8 support]),
106     , enable_utf8=unset)
107 nigel 87
108 ph10 97 # Handle --enable-unicode-properties
109     AC_ARG_ENABLE(unicode-properties,
110     AS_HELP_STRING([--enable-unicode-properties],
111     [enable Unicode properties support (implies --enable-utf8)]),
112     , enable_unicode_properties=no)
113 nigel 87
114 ph10 97 # Handle --enable-newline=NL
115     dnl AC_ARG_ENABLE(newline,
116     dnl AS_HELP_STRING([--enable-newline=NL],
117 ph10 149 dnl [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]),
118 ph10 97 dnl , enable_newline=lf)
119 nigel 87
120 ph10 97 # Separate newline options
121     ac_pcre_newline=lf
122     AC_ARG_ENABLE(newline-is-cr,
123     AS_HELP_STRING([--enable-newline-is-cr],
124     [use CR as newline character]),
125     ac_pcre_newline=cr)
126     AC_ARG_ENABLE(newline-is-lf,
127     AS_HELP_STRING([--enable-newline-is-lf],
128     [use LF as newline character (default)]),
129     ac_pcre_newline=lf)
130     AC_ARG_ENABLE(newline-is-crlf,
131     AS_HELP_STRING([--enable-newline-is-crlf],
132     [use CRLF as newline sequence]),
133     ac_pcre_newline=crlf)
134 ph10 149 AC_ARG_ENABLE(newline-is-anycrlf,
135     AS_HELP_STRING([--enable-newline-is-anycrlf],
136     [use CR, LF, or CRLF as newline sequence]),
137     ac_pcre_newline=anycrlf)
138 ph10 97 AC_ARG_ENABLE(newline-is-any,
139     AS_HELP_STRING([--enable-newline-is-any],
140     [use any valid Unicode newline sequence]),
141     ac_pcre_newline=any)
142     enable_newline="$ac_pcre_newline"
143 nigel 87
144 ph10 231 # Handle --enable-bsr-anycrlf
145     AC_ARG_ENABLE(bsr-anycrlf,
146     AS_HELP_STRING([--enable-bsr-anycrlf],
147     [\R matches only CR, LF, CRLF by default]),
148     , enable_bsr_anycrlf=no)
149    
150 ph10 97 # Handle --enable-ebcdic
151     AC_ARG_ENABLE(ebcdic,
152     AS_HELP_STRING([--enable-ebcdic],
153 ph10 195 [assume EBCDIC coding rather than ASCII; use this only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
154 ph10 97 , enable_ebcdic=no)
155 nigel 87
156 ph10 97 # Handle --disable-stack-for-recursion
157     AC_ARG_ENABLE(stack-for-recursion,
158     AS_HELP_STRING([--disable-stack-for-recursion],
159     [don't use stack recursion when matching]),
160     , enable_stack_for_recursion=yes)
161 nigel 87
162 ph10 286 # Handle --enable-pcregrep-libz
163     AC_ARG_ENABLE(pcregrep-libz,
164     AS_HELP_STRING([--enable-pcregrep-libz],
165     [link pcregrep with libz to handle .gz files]),
166     , enable_pcregrep_libz=no)
167    
168     # Handle --enable-pcregrep-libbz2
169     AC_ARG_ENABLE(pcregrep-libbz2,
170     AS_HELP_STRING([--enable-pcregrep-libbz2],
171     [link pcregrep with libbz2 to handle .bz2 files]),
172     , enable_pcregrep_libbz2=no)
173    
174 ph10 287 # Handle --enable-pcretest-libreadline
175     AC_ARG_ENABLE(pcretest-libreadline,
176     AS_HELP_STRING([--enable-pcretest-libreadline],
177     [link pcretest with libreadline]),
178     , enable_pcretest_libreadline=no)
179    
180 ph10 97 # Handle --with-posix-malloc-threshold=NBYTES
181     AC_ARG_WITH(posix-malloc-threshold,
182     AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
183     [threshold for POSIX malloc usage (default=10)]),
184     , with_posix_malloc_threshold=10)
185 nigel 87
186 ph10 97 # Handle --with-link-size=N
187     AC_ARG_WITH(link-size,
188     AS_HELP_STRING([--with-link-size=N],
189     [internal link size (2, 3, or 4 allowed; default=2)]),
190     , with_link_size=2)
191 nigel 87
192 ph10 97 # Handle --with-match-limit=N
193     AC_ARG_WITH(match-limit,
194     AS_HELP_STRING([--with-match-limit=N],
195     [default limit on internal looping (default=10000000)]),
196     , with_match_limit=10000000)
197 nigel 87
198 ph10 97 # Handle --with-match-limit_recursion=N
199     #
200     # Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
201     # symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
202     # value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
203     # different numeric value (or even the same numeric value as MATCH_LIMIT,
204     # though no longer defined in terms of the latter).
205     #
206     AC_ARG_WITH(match-limit-recursion,
207     AS_HELP_STRING([--with-match-limit-recursion=N],
208     [default limit on internal recursion (default=MATCH_LIMIT)]),
209     , with_match_limit_recursion=MATCH_LIMIT)
210 nigel 87
211 ph10 97 # Make sure that if enable_unicode_properties was set, that UTF-8 support
212     # is enabled.
213     #
214     if test "x$enable_unicode_properties" = "xyes"
215     then
216     if test "x$enable_utf8" = "xno"
217     then
218     AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])
219     fi
220     enable_utf8=yes
221     fi
222 nigel 87
223 ph10 97 if test "x$enable_utf8" = "xunset"
224     then
225     enable_utf8=no
226     fi
227 nigel 87
228 ph10 128 # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
229     #
230 ph10 137 if test "x$enable_ebcdic" = "xyes"
231 ph10 128 then
232     enable_rebuild_chartables=yes
233     fi
234    
235 ph10 97 # Convert the newline identifier into the appropriate integer value.
236     case "$enable_newline" in
237 ph10 149 lf) ac_pcre_newline_value=10 ;;
238     cr) ac_pcre_newline_value=13 ;;
239     crlf) ac_pcre_newline_value=3338 ;;
240 ph10 150 anycrlf) ac_pcre_newline_value=-2 ;;
241 ph10 149 any) ac_pcre_newline_value=-1 ;;
242 ph10 97 *)
243     AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
244     ;;
245     esac
246 nigel 87
247 ph10 97 # Check argument to --with-link-size
248     case "$with_link_size" in
249     2|3|4) ;;
250     *)
251     AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option])
252     ;;
253     esac
254 nigel 87
255 ph10 97 AH_TOP([
256 ph10 100 /* On Unix-like systems config.h.in is converted by "configure" into config.h.
257     Some other environments also support the use of "configure". PCRE is written in
258     Standard C, but there are a few non-standard things it can cope with, allowing
259     it to run on SunOS4 and other "close to standard" systems.
260 nigel 87
261 ph10 111 If you are going to build PCRE "by hand" on a system without "configure" you
262     should copy the distributed config.h.generic to config.h, and then set up the
263 ph10 237 macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to
264     all of your compile commands, so that config.h is included at the start of
265     every source.
266 nigel 87
267 ph10 237 Alternatively, you can avoid editing by using -D on the compiler command line
268     to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
269    
270 ph10 111 PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
271     HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
272     them both to 0; an emulation function will be used. */])
273 ph10 100
274 ph10 97 # Checks for header files.
275 nigel 87 AC_HEADER_STDC
276 ph10 97 AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h)
277 nigel 87
278 ph10 97 # The files below are C++ header files.
279     pcre_have_type_traits="0"
280     pcre_have_bits_type_traits="0"
281     if test "x$enable_cpp" = "xyes" -a -n "$CXX"
282 nigel 87 then
283 ph10 97 AC_LANG_PUSH(C++)
284 nigel 87
285 ph10 330 # Older versions of pcre defined pcrecpp::no_arg, but in new versions
286     # it's called pcrecpp::RE::no_arg. For backwards ABI compatibility,
287     # we want to make one an alias for the other. Different systems do
288     # this in different ways. Some systems, for instance, can do it via
289     # a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
290     OLD_LDFLAGS="$LDFLAGS"
291     for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
292     "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
293     AC_MSG_CHECKING([for alias support in the linker])
294     LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
295     # We try to run the linker with this new ld flag. If the link fails,
296     # we give up and remove the new flag from LDFLAGS.
297     AC_LINK_IFELSE(AC_LANG_PROGRAM([namespace pcrecpp {
298     class RE { static int no_arg; };
299     int RE::no_arg;
300     }],
301     []),
302     [AC_MSG_RESULT([yes]);
303     EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
304     break;],
305     AC_MSG_RESULT([no]))
306     done
307     LDFLAGS="$OLD_LDFLAGS"
308    
309 ph10 97 # We could be more clever here, given we're doing AC_SUBST with this
310 ph10 127 # (eg set a var to be the name of the include file we want). But we're not
311 ph10 97 # so it's easy to change back to 'regular' autoconf vars if we needed to.
312 nigel 87 AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
313     [pcre_have_cpp_headers="0"])
314     AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"],
315     [pcre_have_bits_type_traits="0"])
316     AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
317     [pcre_have_type_traits="0"])
318 ph10 330
319 ph10 97 AC_LANG_POP
320     fi
321     # Using AC_SUBST eliminates the need to include config.h in a public .h file
322     AC_SUBST(pcre_have_type_traits)
323 nigel 87 AC_SUBST(pcre_have_bits_type_traits)
324    
325 ph10 97 # Conditional compilation
326     AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
327 ph10 128 AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
328 nigel 87
329 ph10 97 # Checks for typedefs, structures, and compiler characteristics.
330 nigel 87
331     AC_C_CONST
332     AC_TYPE_SIZE_T
333    
334 ph10 321 pcre_have_strotolonglong=0
335     AC_CHECK_FUNCS(strtoq strtoll _strtoi64, [pcre_have_strotolonglong="1"; break])
336     # If we can't convert a string to a long long, pretend we don't even
337     # have a long long.
338     if test $pcre_have_strotolonglong = "0"; then
339     pcre_have_long_long="0"
340     pcre_have_ulong_long="0"
341     else
342     AC_CHECK_TYPES([long long],
343     [pcre_have_long_long="1"],
344     [pcre_have_long_long="0"])
345     AC_CHECK_TYPES([unsigned long long],
346     [pcre_have_ulong_long="1"],
347     [pcre_have_ulong_long="0"])
348     fi
349 nigel 87 AC_SUBST(pcre_have_long_long)
350     AC_SUBST(pcre_have_ulong_long)
351    
352 ph10 97 # Checks for library functions.
353 nigel 87
354 ph10 321 AC_CHECK_FUNCS(bcopy memmove strerror)
355 nigel 87
356 ph10 286 # Check for the availability of libz (aka zlib)
357    
358     AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
359     AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
360    
361     # Check for the availability of libbz2
362    
363     AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
364     AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
365    
366 ph10 287 # Check for the availabiity of libreadline
367    
368     AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
369     AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
370     AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1])
371    
372 ph10 97 # This facilitates -ansi builds under Linux
373     dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
374 nigel 87
375 ph10 97 if test "x$enable_shared" = "xno" ; then
376     AC_DEFINE([PCRE_STATIC], [1], [
377     Define if linking statically (TODO: make nice with Libtool)])
378 nigel 87 fi
379    
380 ph10 97 # Here is where pcre specific defines are handled
381 nigel 87
382 ph10 97 if test "$enable_utf8" = "yes"; then
383     AC_DEFINE([SUPPORT_UTF8], [], [
384     Define to enable support for the UTF-8 Unicode encoding.])
385 nigel 87 fi
386    
387 ph10 97 if test "$enable_unicode_properties" = "yes"; then
388     AC_DEFINE([SUPPORT_UCP], [], [
389     Define to enable support for Unicode properties])
390     fi
391 nigel 87
392 ph10 97 if test "$enable_stack_for_recursion" = "no"; then
393     AC_DEFINE([NO_RECURSE], [], [
394     PCRE uses recursive function calls to handle backtracking while
395 ph10 127 matching. This can sometimes be a problem on systems that have
396 ph10 100 stacks of limited size. Define NO_RECURSE to get a version that
397 ph10 97 doesn't use recursion in the match() function; instead it creates
398     its own stack by steam using pcre_recurse_malloc() to obtain memory
399     from the heap. For more detail, see the comments and other stuff
400     just above the match() function. On systems that support it,
401     "configure" can be used to set this in the Makefile
402     (use --disable-stack-for-recursion).])
403 nigel 87 fi
404    
405 ph10 286 if test "$enable_pcregrep_libz" = "yes"; then
406     AC_DEFINE([SUPPORT_LIBZ], [], [
407     Define to allow pcregrep to be linked with libz, so that it is
408     able to handle .gz files.])
409     fi
410    
411     if test "$enable_pcregrep_libbz2" = "yes"; then
412     AC_DEFINE([SUPPORT_LIBBZ2], [], [
413     Define to allow pcregrep to be linked with libbz2, so that it is
414     able to handle .bz2 files.])
415     fi
416    
417 ph10 287 if test "$enable_pcretest_libreadline" = "yes"; then
418     AC_DEFINE([SUPPORT_LIBREADLINE], [], [
419     Define to allow pcretest to be linked with libreadline.])
420 ph10 289 fi
421 ph10 287
422 ph10 97 AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
423 ph10 111 The value of NEWLINE determines the newline character sequence. On
424 ph10 231 systems that support it, "configure" can be used to override the
425     default, which is 10. The possible values are 10 (LF), 13 (CR),
426     3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).])
427 nigel 87
428 ph10 231 if test "$enable_bsr_anycrlf" = "yes"; then
429     AC_DEFINE([BSR_ANYCRLF], [], [
430     By default, the \R escape sequence matches any Unicode line ending
431     character or sequence of characters. If BSR_ANYCRLF is defined, this is
432     changed so that backslash-R matches only CR, LF, or CRLF. The build-
433     time default can be overridden by the user of PCRE at runtime. On
434     systems that support it, "configure" can be used to override the
435     default.])
436     fi
437    
438 ph10 97 AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
439     The value of LINK_SIZE determines the number of bytes used to store
440     links as offsets within the compiled regex. The default is 2, which
441     allows for compiled patterns up to 64K long. This covers the vast
442     majority of cases. However, PCRE can also be compiled to use 3 or 4
443     bytes instead. This allows for longer patterns in extreme cases. On
444     systems that support it, "configure" can be used to override this default.])
445 nigel 87
446 ph10 97 AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
447     When calling PCRE via the POSIX interface, additional working storage
448     is required for holding the pointers to capturing substrings because
449     PCRE requires three integers per substring, whereas the POSIX
450     interface provides only two. If the number of expected substrings is
451     small, the wrapper function uses space on the stack, because this is
452     faster than using malloc() for each call. The threshold above which
453     the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On
454     systems that support it, "configure" can be used to override this
455     default.])
456 nigel 91
457 ph10 97 AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
458     The value of MATCH_LIMIT determines the default number of times the
459     internal match() function can be called during a single execution of
460 ph10 100 pcre_exec(). There is a runtime interface for setting a different
461 ph10 97 limit. The limit exists in order to catch runaway regular
462     expressions that take for ever to determine that they do not match.
463     The default is set very large so that it does not accidentally catch
464     legitimate cases. On systems that support it, "configure" can be
465     used to override this default default.])
466 nigel 91
467 ph10 97 AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
468     The above limit applies to all calls of match(), whether or not they
469     increase the recursion depth. In some environments it is desirable
470     to limit the depth of recursive calls of match() more strictly, in
471     order to restrict the maximum amount of stack (or heap, if
472     NO_RECURSE is defined) that is used. The value of
473     MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
474     have any useful effect, it must be less than the value of
475 ph10 111 MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
476     There is a runtime method for setting a different limit. On systems
477 ph10 100 that support it, "configure" can be used to override the default.])
478 nigel 93
479 ph10 97 AC_DEFINE([MAX_NAME_SIZE], [32], [
480     This limit is parameterized just in case anybody ever wants to
481     change it. Care must be taken if it is increased, because it guards
482     against integer overflow caused by enormously large patterns.])
483 nigel 93
484 ph10 97 AC_DEFINE([MAX_NAME_COUNT], [10000], [
485     This limit is parameterized just in case anybody ever wants to
486     change it. Care must be taken if it is increased, because it guards
487     against integer overflow caused by enormously large patterns.])
488 nigel 87
489 ph10 145 AH_VERBATIM([PCRE_EXP_DEFN], [
490 ph10 97 /* If you are compiling for a system other than a Unix-like system or
491     Win32, and it needs some magic to be inserted before the definition
492     of a function that is exported by the library, define this macro to
493     contain the relevant magic. If you do not define this macro, it
494     defaults to "extern" for a C compiler and "extern C" for a C++
495     compiler on non-Win32 systems. This macro apears at the start of
496     every exported function that is part of the external API. It does
497     not appear on functions that are "external" in the C sense, but
498     which are internal to the library. */
499 ph10 145 #undef PCRE_EXP_DEFN])
500 nigel 87
501 ph10 97 if test "$enable_ebcdic" = "yes"; then
502     AC_DEFINE_UNQUOTED([EBCDIC], [], [
503     If you are compiling for a system that uses EBCDIC instead of ASCII
504     character codes, define this macro as 1. On systems that can use
505     "configure", this can be done via --enable-ebcdic.])
506 nigel 87 fi
507    
508 ph10 97 # Platform specific issues
509     NO_UNDEFINED=
510     EXPORT_ALL_SYMBOLS=
511     case $host_os in
512     cygwin* | mingw* )
513     if test X"$enable_shared" = Xyes; then
514     NO_UNDEFINED="-no-undefined"
515     EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
516     fi
517     ;;
518     esac
519 nigel 87
520 ph10 97 # The extra LDFLAGS for each particular library
521     # (Note: The libpcre*_version bits are m4 variables, assigned above)
522 nigel 87
523 ph10 330 EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
524     $NO_UNDEFINED -version-info libpcre_version"
525 nigel 87
526 ph10 330 EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
527     $NO_UNDEFINED -version-info libpcreposix_version"
528 nigel 87
529 ph10 330 EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
530     $NO_UNDEFINED -version-info libpcrecpp_version \
531     $EXPORT_ALL_SYMBOLS"
532 nigel 87
533 ph10 97 AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
534     AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
535     AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
536 nigel 87
537 ph10 97 # When we run 'make distcheck', use these arguments.
538     DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"
539     AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
540 nigel 87
541 ph10 286 # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
542     # specified, the relevant library is available. If so, add it to LIBS.
543    
544     if test "$enable_pcregrep_libz" = "yes"; then
545     if test "$HAVE_ZLIB_H" != "1"; then
546     echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
547     exit 1
548     fi
549     if test "$HAVE_LIBZ" != "1"; then
550     echo "** Cannot --enable-pcregrep-libz because libz was not found"
551     exit 1
552     fi
553     if test "$LIBS" = ""; then LIBS=-lz; else LIBS="$LIBS -lz"; fi
554     fi
555    
556     if test "$enable_pcregrep_libbz2" = "yes"; then
557     if test "$HAVE_BZLIB_H" != "1"; then
558     echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
559     exit 1
560     fi
561     if test "$HAVE_LIBBZ2" != "1"; then
562     echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
563     exit 1
564     fi
565     if test "$LIBS" = ""; then LIBS=-lbz2; else LIBS="$LIBS -lbz2"; fi
566     fi
567    
568 ph10 287 # Similarly for --enable-pcretest-readline
569    
570     if test "$enable_pcretest_libreadline" = "yes"; then
571     if test "$HAVE_READLINE_H" != "1"; then
572     echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
573     exit 1
574     fi
575     if test "$HAVE_HISTORY_H" != "1"; then
576     echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
577     exit 1
578     fi
579     if test "$LIBS" = ""; then LIBS=-lreadline; else LIBS="$LIBS -lreadline"; fi
580 ph10 289 fi
581 ph10 287
582 ph10 97 # Produce these files, in addition to config.h.
583     AC_CONFIG_FILES(
584     Makefile
585     libpcre.pc
586     libpcrecpp.pc
587     pcre-config
588     pcre.h
589     pcre_stringpiece.h
590     pcrecpparg.h
591 nigel 87 )
592    
593 ph10 97 # Make the generated script files executable.
594 ph10 137 AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config])
595 nigel 87
596 ph10 128 # Make sure that pcre_chartables.c is removed in case the method for
597     # creating it was changed by reconfiguration.
598 ph10 137 AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c])
599 ph10 128
600 ph10 137 AC_OUTPUT
601 ph10 128
602 ph10 97 # Print out a nice little message after configure is run displaying your
603     # chosen options.
604 ph10 286
605 ph10 97 cat <<EOF
606 nigel 87
607 ph10 97 $PACKAGE-$VERSION configuration summary:
608 nigel 87
609 ph10 287 Install prefix .................. : ${prefix}
610     C preprocessor .................. : ${CPP}
611     C compiler ...................... : ${CC}
612     C++ preprocessor ................ : ${CXXCPP}
613     C++ compiler .................... : ${CXX}
614     Linker .......................... : ${LD}
615     C preprocessor flags ............ : ${CPPFLAGS}
616     C compiler flags ................ : ${CFLAGS}
617     C++ compiler flags .............. : ${CXXFLAGS}
618     Linker flags .................... : ${LDFLAGS}
619     Extra libraries ................. : ${LIBS}
620 ph10 289
621 ph10 287 Build C++ library ............... : ${enable_cpp}
622     Enable UTF-8 support ............ : ${enable_utf8}
623     Unicode properties .............. : ${enable_unicode_properties}
624     Newline char/sequence ........... : ${enable_newline}
625     \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
626     EBCDIC coding ................... : ${enable_ebcdic}
627     Rebuild char tables ............. : ${enable_rebuild_chartables}
628     Use stack recursion ............. : ${enable_stack_for_recursion}
629     POSIX mem threshold ............. : ${with_posix_malloc_threshold}
630     Internal link size .............. : ${with_link_size}
631     Match limit ..................... : ${with_match_limit}
632     Match limit recursion ........... : ${with_match_limit_recursion}
633     Build shared libs ............... : ${enable_shared}
634     Build static libs ............... : ${enable_static}
635     Link pcregrep with libz ......... : ${enable_pcregrep_libz}
636     Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
637 ph10 289 Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
638 nigel 87
639 ph10 97 EOF
640 nigel 87
641 ph10 97 dnl end configure.ac

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