1 |
dnl Process this file with autoconf to produce a configure script.
|
2 |
|
3 |
dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with
|
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 |
m4_define(pcre_major, [7])
|
10 |
m4_define(pcre_minor, [1])
|
11 |
m4_define(pcre_prerelease, [-RC1])
|
12 |
m4_define(pcre_date, [2007-03-05])
|
13 |
|
14 |
# 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 |
|
19 |
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 |
PCRE_MAJOR="pcre_major"
|
31 |
PCRE_MINOR="pcre_minor"
|
32 |
PCRE_PRERELEASE="pcre_prerelease"
|
33 |
PCRE_DATE="pcre_date"
|
34 |
|
35 |
AC_SUBST(PCRE_MAJOR)
|
36 |
AC_SUBST(PCRE_MINOR)
|
37 |
AC_SUBST(PCRE_PRERELEASE)
|
38 |
AC_SUBST(PCRE_DATE)
|
39 |
|
40 |
# 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 |
# Handle --disable-cpp
|
47 |
AC_ARG_ENABLE(cpp,
|
48 |
AS_HELP_STRING([--disable-cpp],
|
49 |
[disable C++ support]),
|
50 |
, enable_cpp=yes)
|
51 |
|
52 |
# Handle --enable-utf8 (disabled by default)
|
53 |
AC_ARG_ENABLE(utf8,
|
54 |
AS_HELP_STRING([--enable-utf8],
|
55 |
[enable UTF-8 support]),
|
56 |
, enable_utf8=unset)
|
57 |
|
58 |
# Handle --enable-unicode-properties
|
59 |
AC_ARG_ENABLE(unicode-properties,
|
60 |
AS_HELP_STRING([--enable-unicode-properties],
|
61 |
[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 |
# 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="$ac_pcre_newline"
|
89 |
|
90 |
# Handle --enable-ebcdic
|
91 |
AC_ARG_ENABLE(ebcdic,
|
92 |
AS_HELP_STRING([--enable-ebcdic],
|
93 |
[assume EBCDIC coding rather than ASCII]),
|
94 |
, enable_ebcdic=no)
|
95 |
|
96 |
# Handle --disable-stack-for-recursion
|
97 |
AC_ARG_ENABLE(stack-for-recursion,
|
98 |
AS_HELP_STRING([--disable-stack-for-recursion],
|
99 |
[don't use stack recursion when matching]),
|
100 |
, enable_stack_for_recursion=yes)
|
101 |
|
102 |
# Handle --with-posix-malloc-threshold=NBYTES
|
103 |
AC_ARG_WITH(posix-malloc-threshold,
|
104 |
AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
|
105 |
[threshold for POSIX malloc usage (default=10)]),
|
106 |
, with_posix_malloc_threshold=10)
|
107 |
|
108 |
# Handle --with-link-size=N
|
109 |
AC_ARG_WITH(link-size,
|
110 |
AS_HELP_STRING([--with-link-size=N],
|
111 |
[internal link size (2, 3, or 4 allowed; default=2)]),
|
112 |
, with_link_size=2)
|
113 |
|
114 |
# Handle --with-match-limit=N
|
115 |
AC_ARG_WITH(match-limit,
|
116 |
AS_HELP_STRING([--with-match-limit=N],
|
117 |
[default limit on internal looping (default=10000000)]),
|
118 |
, with_match_limit=10000000)
|
119 |
|
120 |
# Handle --with-match-limit_recursion=N
|
121 |
#
|
122 |
# Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
|
123 |
# symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
|
124 |
# value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
|
125 |
# different numeric value (or even the same numeric value as MATCH_LIMIT,
|
126 |
# though no longer defined in terms of the latter).
|
127 |
#
|
128 |
AC_ARG_WITH(match-limit-recursion,
|
129 |
AS_HELP_STRING([--with-match-limit-recursion=N],
|
130 |
[default limit on internal recursion (default=MATCH_LIMIT)]),
|
131 |
, with_match_limit_recursion=MATCH_LIMIT)
|
132 |
|
133 |
# Make sure that if enable_unicode_properties was set, that UTF-8 support
|
134 |
# is enabled.
|
135 |
#
|
136 |
if test "x$enable_unicode_properties" = "xyes"
|
137 |
then
|
138 |
if test "x$enable_utf8" = "xno"
|
139 |
then
|
140 |
AC_MSG_ERROR([support for Unicode properties requires UTF-8 support])
|
141 |
fi
|
142 |
enable_utf8=yes
|
143 |
fi
|
144 |
|
145 |
if test "x$enable_utf8" = "xunset"
|
146 |
then
|
147 |
enable_utf8=no
|
148 |
fi
|
149 |
|
150 |
# Convert the newline identifier into the appropriate integer value.
|
151 |
case "$enable_newline" in
|
152 |
lf) ac_pcre_newline_value=10 ;;
|
153 |
cr) ac_pcre_newline_value=13 ;;
|
154 |
crlf) ac_pcre_newline_value=3338 ;;
|
155 |
any) ac_pcre_newline_value=-1 ;;
|
156 |
*)
|
157 |
AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
|
158 |
;;
|
159 |
esac
|
160 |
|
161 |
# Check argument to --with-link-size
|
162 |
case "$with_link_size" in
|
163 |
2|3|4) ;;
|
164 |
*)
|
165 |
AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option])
|
166 |
;;
|
167 |
esac
|
168 |
|
169 |
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
|
184 |
AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h)
|
185 |
|
186 |
# The files below are C++ header files.
|
187 |
pcre_have_type_traits="0"
|
188 |
pcre_have_bits_type_traits="0"
|
189 |
if test "x$enable_cpp" = "xyes" -a -n "$CXX"
|
190 |
then
|
191 |
AC_LANG_PUSH(C++)
|
192 |
|
193 |
# We could be more clever here, given we're doing AC_SUBST with this
|
194 |
# (eg set a var to be the name of the include file we want). But we're not
|
195 |
# 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"],
|
197 |
[pcre_have_cpp_headers="0"])
|
198 |
AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"],
|
199 |
[pcre_have_bits_type_traits="0"])
|
200 |
AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
|
201 |
[pcre_have_type_traits="0"])
|
202 |
AC_LANG_POP
|
203 |
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 |
# Conditional compilation
|
209 |
AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
|
210 |
|
211 |
# Checks for typedefs, structures, and compiler characteristics.
|
212 |
|
213 |
AC_C_CONST
|
214 |
AC_TYPE_SIZE_T
|
215 |
|
216 |
AC_CHECK_TYPES([long long],
|
217 |
[pcre_have_long_long="1"],
|
218 |
[pcre_have_long_long="0"])
|
219 |
AC_CHECK_TYPES([unsigned long long],
|
220 |
[pcre_have_ulong_long="1"],
|
221 |
[pcre_have_ulong_long="0"])
|
222 |
AC_SUBST(pcre_have_long_long)
|
223 |
AC_SUBST(pcre_have_ulong_long)
|
224 |
|
225 |
# Checks for library functions.
|
226 |
|
227 |
AC_CHECK_FUNCS(bcopy memmove strerror strtoq strtoll)
|
228 |
|
229 |
# This facilitates -ansi builds under Linux
|
230 |
dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
|
231 |
|
232 |
if test "x$enable_shared" = "xno" ; then
|
233 |
AC_DEFINE([PCRE_STATIC], [1], [
|
234 |
Define if linking statically (TODO: make nice with Libtool)])
|
235 |
fi
|
236 |
|
237 |
# Here is where pcre specific defines are handled
|
238 |
|
239 |
if test "$enable_utf8" = "yes"; then
|
240 |
AC_DEFINE([SUPPORT_UTF8], [], [
|
241 |
Define to enable support for the UTF-8 Unicode encoding.])
|
242 |
fi
|
243 |
|
244 |
if test "$enable_unicode_properties" = "yes"; then
|
245 |
AC_DEFINE([SUPPORT_UCP], [], [
|
246 |
Define to enable support for Unicode properties])
|
247 |
fi
|
248 |
|
249 |
if test "$enable_stack_for_recursion" = "no"; then
|
250 |
AC_DEFINE([NO_RECURSE], [], [
|
251 |
PCRE uses recursive function calls to handle backtracking while
|
252 |
matching. This can sometimes be a problem on systems that have
|
253 |
stacks of limited size. Define NO_RECURSE to get a version that
|
254 |
doesn't use recursion in the match() function; instead it creates
|
255 |
its own stack by steam using pcre_recurse_malloc() to obtain memory
|
256 |
from the heap. For more detail, see the comments and other stuff
|
257 |
just above the match() function. On systems that support it,
|
258 |
"configure" can be used to set this in the Makefile
|
259 |
(use --disable-stack-for-recursion).])
|
260 |
fi
|
261 |
|
262 |
AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
|
263 |
The value of NEWLINE determines the newline character sequence. On
|
264 |
Unix-like systems, "configure" can be used to override the default,
|
265 |
which is 10. The possible values are 10 (LF), 13 (CR), 3338 (CRLF),
|
266 |
or -1 (ANY).])
|
267 |
|
268 |
AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
|
269 |
The value of LINK_SIZE determines the number of bytes used to store
|
270 |
links as offsets within the compiled regex. The default is 2, which
|
271 |
allows for compiled patterns up to 64K long. This covers the vast
|
272 |
majority of cases. However, PCRE can also be compiled to use 3 or 4
|
273 |
bytes instead. This allows for longer patterns in extreme cases. On
|
274 |
systems that support it, "configure" can be used to override this default.])
|
275 |
|
276 |
AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
|
277 |
When calling PCRE via the POSIX interface, additional working storage
|
278 |
is required for holding the pointers to capturing substrings because
|
279 |
PCRE requires three integers per substring, whereas the POSIX
|
280 |
interface provides only two. If the number of expected substrings is
|
281 |
small, the wrapper function uses space on the stack, because this is
|
282 |
faster than using malloc() for each call. The threshold above which
|
283 |
the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On
|
284 |
systems that support it, "configure" can be used to override this
|
285 |
default.])
|
286 |
|
287 |
AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
|
288 |
The value of MATCH_LIMIT determines the default number of times the
|
289 |
internal match() function can be called during a single execution of
|
290 |
pcre_exec(). There is a runtime interface for setting a different
|
291 |
limit. The limit exists in order to catch runaway regular
|
292 |
expressions that take for ever to determine that they do not match.
|
293 |
The default is set very large so that it does not accidentally catch
|
294 |
legitimate cases. On systems that support it, "configure" can be
|
295 |
used to override this default default.])
|
296 |
|
297 |
AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
|
298 |
The above limit applies to all calls of match(), whether or not they
|
299 |
increase the recursion depth. In some environments it is desirable
|
300 |
to limit the depth of recursive calls of match() more strictly, in
|
301 |
order to restrict the maximum amount of stack (or heap, if
|
302 |
NO_RECURSE is defined) that is used. The value of
|
303 |
MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
|
304 |
have any useful effect, it must be less than the value of
|
305 |
MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
|
306 |
There is a runtime method for setting a different limit. On systems
|
307 |
that support it, "configure" can be used to override the default.])
|
308 |
|
309 |
AC_DEFINE([MAX_NAME_SIZE], [32], [
|
310 |
This limit is parameterized just in case anybody ever wants to
|
311 |
change it. Care must be taken if it is increased, because it guards
|
312 |
against integer overflow caused by enormously large patterns.])
|
313 |
|
314 |
AC_DEFINE([MAX_NAME_COUNT], [10000], [
|
315 |
This limit is parameterized just in case anybody ever wants to
|
316 |
change it. Care must be taken if it is increased, because it guards
|
317 |
against integer overflow caused by enormously large patterns.])
|
318 |
|
319 |
AC_DEFINE([MAX_DUPLENGTH], [30000], [
|
320 |
This limit is parameterized just in case anybody ever wants to
|
321 |
change it. Care must be taken if it is increased, because it guards
|
322 |
against integer overflow caused by enormously large patterns.])
|
323 |
|
324 |
AH_VERBATIM([PCRE_DATA_SCOPE], [
|
325 |
/* If you are compiling for a system other than a Unix-like system or
|
326 |
Win32, and it needs some magic to be inserted before the definition
|
327 |
of a function that is exported by the library, define this macro to
|
328 |
contain the relevant magic. If you do not define this macro, it
|
329 |
defaults to "extern" for a C compiler and "extern C" for a C++
|
330 |
compiler on non-Win32 systems. This macro apears at the start of
|
331 |
every exported function that is part of the external API. It does
|
332 |
not appear on functions that are "external" in the C sense, but
|
333 |
which are internal to the library. */
|
334 |
#undef PCRE_DATA_SCOPE])
|
335 |
|
336 |
if test "$enable_ebcdic" = "yes"; then
|
337 |
AC_DEFINE_UNQUOTED([EBCDIC], [], [
|
338 |
If you are compiling for a system that uses EBCDIC instead of ASCII
|
339 |
character codes, define this macro as 1. On systems that can use
|
340 |
"configure", this can be done via --enable-ebcdic.])
|
341 |
fi
|
342 |
|
343 |
# Here is where pcre specific substs are handled
|
344 |
# These 3 are only used by RunTest.in.
|
345 |
# TODO: remove once RunTest uses pcretest -C instead.
|
346 |
AC_SUBST(LINK_SIZE, $with_link_size)
|
347 |
AC_SUBST(UTF8, $enable_utf8)
|
348 |
AC_SUBST(UCP, $enable_unicode_properties)
|
349 |
|
350 |
# Platform specific issues
|
351 |
NO_UNDEFINED=
|
352 |
EXPORT_ALL_SYMBOLS=
|
353 |
case $host_os in
|
354 |
cygwin* | mingw* )
|
355 |
if test X"$enable_shared" = Xyes; then
|
356 |
NO_UNDEFINED="-no-undefined"
|
357 |
EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
|
358 |
fi
|
359 |
;;
|
360 |
esac
|
361 |
|
362 |
# The extra LDFLAGS for each particular library
|
363 |
# (Note: The libpcre*_version bits are m4 variables, assigned above)
|
364 |
|
365 |
EXTRA_LIBPCRE_LDFLAGS="$NO_UNDEFINED -version-info libpcre_version"
|
366 |
|
367 |
EXTRA_LIBPCREPOSIX_LDFLAGS="$NO_UNDEFINED -version-info libpcreposix_version"
|
368 |
|
369 |
EXTRA_LIBPCRECPP_LDFLAGS="$NO_UNDEFINED $EXPORT_ALL_SYMBOLS -version-info libpcrecpp_version"
|
370 |
|
371 |
AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
|
372 |
AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
|
373 |
AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
|
374 |
|
375 |
# When we run 'make distcheck', use these arguments.
|
376 |
DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties"
|
377 |
AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
|
378 |
|
379 |
# Produce these files, in addition to config.h.
|
380 |
AC_CONFIG_FILES(
|
381 |
Makefile
|
382 |
RunGrepTest
|
383 |
RunTest
|
384 |
libpcre.pc
|
385 |
libpcrecpp.pc
|
386 |
pcre-config
|
387 |
pcre.h
|
388 |
pcre_stringpiece.h
|
389 |
pcrecpparg.h
|
390 |
)
|
391 |
|
392 |
# Make the generated script files executable.
|
393 |
AC_CONFIG_COMMANDS([script-chmod], [chmod a+x RunTest RunGrepTest pcre-config])
|
394 |
|
395 |
AC_OUTPUT
|
396 |
|
397 |
# Print out a nice little message after configure is run displaying your
|
398 |
# chosen options.
|
399 |
#
|
400 |
cat <<EOF
|
401 |
|
402 |
$PACKAGE-$VERSION configuration summary:
|
403 |
|
404 |
Install prefix ......... : ${prefix}
|
405 |
C preprocessor ......... : ${CPP}
|
406 |
C compiler ............. : ${CC}
|
407 |
C++ preprocessor ....... : ${CXXCPP}
|
408 |
C++ compiler ........... : ${CXX}
|
409 |
Linker ................. : ${LD}
|
410 |
C preprocessor flags ... : ${CPPFLAGS}
|
411 |
C compiler flags ....... : ${CFLAGS}
|
412 |
C++ compiler flags ..... : ${CXXFLAGS}
|
413 |
Linker flags ........... : ${LDFLAGS}
|
414 |
Extra libraries ........ : ${LIBS}
|
415 |
|
416 |
Build C++ library ...... : ${enable_cpp}
|
417 |
Enable UTF-8 support ... : ${enable_utf8}
|
418 |
Unicode properties ..... : ${enable_unicode_properties}
|
419 |
Newline char/sequence .. : ${enable_newline}
|
420 |
EBCDIC coding .......... : ${enable_ebcdic}
|
421 |
Use stack recursion .... : ${enable_stack_for_recursion}
|
422 |
POSIX mem threshold .... : ${with_posix_malloc_threshold}
|
423 |
Internal link size ..... : ${with_link_size}
|
424 |
Match limit ............ : ${with_match_limit}
|
425 |
Match limit recursion .. : ${with_match_limit_recursion}
|
426 |
Build shared libs ...... : ${enable_shared}
|
427 |
Build static libs ...... : ${enable_static}
|
428 |
|
429 |
EOF
|
430 |
|
431 |
dnl end configure.ac
|