/vendor/pcre/configure.ac
m4 | 641 lines | 463 code | 98 blank | 80 comment | 0 complexity | df5b63bdbc01dd8dd892d2b5163980c1 MD5 | raw file
1dnl Process this file with autoconf to produce a configure script. 2 3dnl NOTE FOR MAINTAINERS: Do not use major or minor version numbers with 4dnl leading zeros, because they may be treated as octal constants. The 5dnl PCRE_PRERELEASE feature is for identifying release candidates. It might 6dnl be defined as -RC2, for example. For real releases, it should be defined 7dnl empty. 8 9m4_define(pcre_major, [7]) 10m4_define(pcre_minor, [8]) 11m4_define(pcre_prerelease, []) 12m4_define(pcre_date, [2008-09-05]) 13 14# Libtool shared library interface versions (current:revision:age) 15m4_define(libpcre_version, [0:1:0]) 16m4_define(libpcreposix_version, [0:0:0]) 17m4_define(libpcrecpp_version, [0:0:0]) 18 19AC_PREREQ(2.57) 20AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre) 21AC_CONFIG_SRCDIR([pcre.h.in]) 22AM_INIT_AUTOMAKE([dist-bzip2 dist-zip]) 23AC_CONFIG_HEADERS(config.h) 24 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 35remember_set_CFLAGS="$CFLAGS" 36remember_set_CXXFLAGS="$CXXFLAGS" 37 38AC_PROG_CC 39AC_PROG_CXX 40 41if test "x$remember_set_CFLAGS" = "x" 42then 43 if test "$CFLAGS" = "-g -O2" 44 then 45 CFLAGS="-O2" 46 elif test "$CFLAGS" = "-g" 47 then 48 CFLAGS="" 49 fi 50fi 51 52if test "x$remember_set_CXXFLAGS" = "x" 53then 54 if test "$CXXFLAGS" = "-g -O2" 55 then 56 CXXFLAGS="-O2" 57 elif test "$CXXFLAGS" = "-g" 58 then 59 CXXFLAGS="" 60 fi 61fi 62 63# 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. 65AC_LANG_PUSH(C++) 66AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[]),, CXX=""; CXXCP=""; CXXFLAGS="") 67AC_LANG_POP 68 69AC_PROG_INSTALL 70AC_LIBTOOL_WIN32_DLL 71AC_PROG_LIBTOOL 72AC_PROG_LN_S 73 74PCRE_MAJOR="pcre_major" 75PCRE_MINOR="pcre_minor" 76PCRE_PRERELEASE="pcre_prerelease" 77PCRE_DATE="pcre_date" 78 79AC_SUBST(PCRE_MAJOR) 80AC_SUBST(PCRE_MINOR) 81AC_SUBST(PCRE_PRERELEASE) 82AC_SUBST(PCRE_DATE) 83 84# Set a more sensible default value for $(htmldir). 85if test "x$htmldir" = 'x${docdir}' 86then 87 htmldir='${docdir}/html' 88fi 89 90# Handle --disable-cpp 91AC_ARG_ENABLE(cpp, 92 AS_HELP_STRING([--disable-cpp], 93 [disable C++ support]), 94 , enable_cpp=yes) 95 96# Handle --enable-rebuild-chartables 97AC_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# Handle --enable-utf8 (disabled by default) 103AC_ARG_ENABLE(utf8, 104 AS_HELP_STRING([--enable-utf8], 105 [enable UTF-8 support]), 106 , enable_utf8=unset) 107 108# Handle --enable-unicode-properties 109AC_ARG_ENABLE(unicode-properties, 110 AS_HELP_STRING([--enable-unicode-properties], 111 [enable Unicode properties support (implies --enable-utf8)]), 112 , enable_unicode_properties=no) 113 114# Handle --enable-newline=NL 115dnl AC_ARG_ENABLE(newline, 116dnl AS_HELP_STRING([--enable-newline=NL], 117dnl [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]), 118dnl , enable_newline=lf) 119 120# Separate newline options 121ac_pcre_newline=lf 122AC_ARG_ENABLE(newline-is-cr, 123 AS_HELP_STRING([--enable-newline-is-cr], 124 [use CR as newline character]), 125 ac_pcre_newline=cr) 126AC_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) 130AC_ARG_ENABLE(newline-is-crlf, 131 AS_HELP_STRING([--enable-newline-is-crlf], 132 [use CRLF as newline sequence]), 133 ac_pcre_newline=crlf) 134AC_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) 138AC_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) 142enable_newline="$ac_pcre_newline" 143 144# Handle --enable-bsr-anycrlf 145AC_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# Handle --enable-ebcdic 151AC_ARG_ENABLE(ebcdic, 152 AS_HELP_STRING([--enable-ebcdic], 153 [assume EBCDIC coding rather than ASCII; use this only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]), 154 , enable_ebcdic=no) 155 156# Handle --disable-stack-for-recursion 157AC_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) 161 162# Handle --enable-pcregrep-libz 163AC_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 169AC_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# Handle --enable-pcretest-libreadline 175AC_ARG_ENABLE(pcretest-libreadline, 176 AS_HELP_STRING([--enable-pcretest-libreadline], 177 [link pcretest with libreadline]), 178 , enable_pcretest_libreadline=no) 179 180# Handle --with-posix-malloc-threshold=NBYTES 181AC_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) 185 186# Handle --with-link-size=N 187AC_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) 191 192# Handle --with-match-limit=N 193AC_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) 197 198# 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# 206AC_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) 210 211# Make sure that if enable_unicode_properties was set, that UTF-8 support 212# is enabled. 213# 214if test "x$enable_unicode_properties" = "xyes" 215then 216 if test "x$enable_utf8" = "xno" 217 then 218 AC_MSG_ERROR([support for Unicode properties requires UTF-8 support]) 219 fi 220 enable_utf8=yes 221fi 222 223if test "x$enable_utf8" = "xunset" 224then 225 enable_utf8=no 226fi 227 228# Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled. 229# 230if test "x$enable_ebcdic" = "xyes" 231then 232 enable_rebuild_chartables=yes 233fi 234 235# Convert the newline identifier into the appropriate integer value. 236case "$enable_newline" in 237 lf) ac_pcre_newline_value=10 ;; 238 cr) ac_pcre_newline_value=13 ;; 239 crlf) ac_pcre_newline_value=3338 ;; 240 anycrlf) ac_pcre_newline_value=-2 ;; 241 any) ac_pcre_newline_value=-1 ;; 242 *) 243 AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option]) 244 ;; 245esac 246 247# Check argument to --with-link-size 248case "$with_link_size" in 249 2|3|4) ;; 250 *) 251 AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option]) 252 ;; 253esac 254 255AH_TOP([ 256/* On Unix-like systems config.h.in is converted by "configure" into config.h. 257Some other environments also support the use of "configure". PCRE is written in 258Standard C, but there are a few non-standard things it can cope with, allowing 259it to run on SunOS4 and other "close to standard" systems. 260 261If you are going to build PCRE "by hand" on a system without "configure" you 262should copy the distributed config.h.generic to config.h, and then set up the 263macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to 264all of your compile commands, so that config.h is included at the start of 265every source. 266 267Alternatively, you can avoid editing by using -D on the compiler command line 268to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H. 269 270PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if 271HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set 272them both to 0; an emulation function will be used. */]) 273 274# Checks for header files. 275AC_HEADER_STDC 276AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h) 277 278# The files below are C++ header files. 279pcre_have_type_traits="0" 280pcre_have_bits_type_traits="0" 281if test "x$enable_cpp" = "xyes" -a -n "$CXX" 282then 283AC_LANG_PUSH(C++) 284 285# Older versions of pcre defined pcrecpp::no_arg, but in new versions 286# it's called pcrecpp::RE::no_arg. For backwards ABI compatibility, 287# we want to make one an alias for the other. Different systems do 288# this in different ways. Some systems, for instance, can do it via 289# a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4). 290OLD_LDFLAGS="$LDFLAGS" 291for 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])) 306done 307LDFLAGS="$OLD_LDFLAGS" 308 309# We could be more clever here, given we're doing AC_SUBST with this 310# (eg set a var to be the name of the include file we want). But we're not 311# so it's easy to change back to 'regular' autoconf vars if we needed to. 312AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"], 313 [pcre_have_cpp_headers="0"]) 314AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"], 315 [pcre_have_bits_type_traits="0"]) 316AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"], 317 [pcre_have_type_traits="0"]) 318 319AC_LANG_POP 320fi 321# Using AC_SUBST eliminates the need to include config.h in a public .h file 322AC_SUBST(pcre_have_type_traits) 323AC_SUBST(pcre_have_bits_type_traits) 324 325# Conditional compilation 326AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes") 327AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes") 328 329# Checks for typedefs, structures, and compiler characteristics. 330 331AC_C_CONST 332AC_TYPE_SIZE_T 333 334pcre_have_strotolonglong=0 335AC_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. 338if test $pcre_have_strotolonglong = "0"; then 339 pcre_have_long_long="0" 340 pcre_have_ulong_long="0" 341else 342 AC_CHECK_TYPES([long long], 343 [pcre_have_long_long="1"], 344 [pcre_have_long_long="0"]) 345 AC_CHECK_TYPES([unsigned long long], 346 [pcre_have_ulong_long="1"], 347 [pcre_have_ulong_long="0"]) 348fi 349AC_SUBST(pcre_have_long_long) 350AC_SUBST(pcre_have_ulong_long) 351 352# Checks for library functions. 353 354AC_CHECK_FUNCS(bcopy memmove strerror) 355 356# Check for the availability of libz (aka zlib) 357 358AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1]) 359AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1]) 360 361# Check for the availability of libbz2 362 363AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1]) 364AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1]) 365 366# Check for the availabiity of libreadline 367 368AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1]) 369AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1]) 370AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1]) 371 372# This facilitates -ansi builds under Linux 373dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc]) 374 375if test "x$enable_shared" = "xno" ; then 376 AC_DEFINE([PCRE_STATIC], [1], [ 377 Define if linking statically (TODO: make nice with Libtool)]) 378fi 379 380# Here is where pcre specific defines are handled 381 382if test "$enable_utf8" = "yes"; then 383 AC_DEFINE([SUPPORT_UTF8], [], [ 384 Define to enable support for the UTF-8 Unicode encoding.]) 385fi 386 387if test "$enable_unicode_properties" = "yes"; then 388 AC_DEFINE([SUPPORT_UCP], [], [ 389 Define to enable support for Unicode properties]) 390fi 391 392if test "$enable_stack_for_recursion" = "no"; then 393 AC_DEFINE([NO_RECURSE], [], [ 394 PCRE uses recursive function calls to handle backtracking while 395 matching. This can sometimes be a problem on systems that have 396 stacks of limited size. Define NO_RECURSE to get a version that 397 doesn't use recursion in the match() function; instead it creates 398 its own stack by steam using pcre_recurse_malloc() to obtain memory 399 from the heap. For more detail, see the comments and other stuff 400 just above the match() function. On systems that support it, 401 "configure" can be used to set this in the Makefile 402 (use --disable-stack-for-recursion).]) 403fi 404 405if test "$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.]) 409fi 410 411if test "$enable_pcregrep_libbz2" = "yes"; then 412 AC_DEFINE([SUPPORT_LIBBZ2], [], [ 413 Define to allow pcregrep to be linked with libbz2, so that it is 414 able to handle .bz2 files.]) 415fi 416 417if test "$enable_pcretest_libreadline" = "yes"; then 418 AC_DEFINE([SUPPORT_LIBREADLINE], [], [ 419 Define to allow pcretest to be linked with libreadline.]) 420fi 421 422AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [ 423 The value of NEWLINE determines the newline character sequence. On 424 systems that support it, "configure" can be used to override the 425 default, which is 10. The possible values are 10 (LF), 13 (CR), 426 3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).]) 427 428if test "$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.]) 436fi 437 438AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [ 439 The value of LINK_SIZE determines the number of bytes used to store 440 links as offsets within the compiled regex. The default is 2, which 441 allows for compiled patterns up to 64K long. This covers the vast 442 majority of cases. However, PCRE can also be compiled to use 3 or 4 443 bytes instead. This allows for longer patterns in extreme cases. On 444 systems that support it, "configure" can be used to override this default.]) 445 446AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$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 457AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [ 458 The value of MATCH_LIMIT determines the default number of times the 459 internal match() function can be called during a single execution of 460 pcre_exec(). There is a runtime interface for setting a different 461 limit. The limit exists in order to catch runaway regular 462 expressions that take for ever to determine that they do not match. 463 The default is set very large so that it does not accidentally catch 464 legitimate cases. On systems that support it, "configure" can be 465 used to override this default default.]) 466 467AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$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 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 that support it, "configure" can be used to override the default.]) 478 479AC_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 484AC_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 489AH_VERBATIM([PCRE_EXP_DEFN], [ 490/* 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#undef PCRE_EXP_DEFN]) 500 501if 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.]) 506fi 507 508# Platform specific issues 509NO_UNDEFINED= 510EXPORT_ALL_SYMBOLS= 511case $host_os in 512 cygwin* | mingw* ) 513 if test X"$enable_shared" = Xyes; then 514 NO_UNDEFINED="-no-undefined" 515 EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols" 516 fi 517 ;; 518esac 519 520# The extra LDFLAGS for each particular library 521# (Note: The libpcre*_version bits are m4 variables, assigned above) 522 523EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \ 524 $NO_UNDEFINED -version-info libpcre_version" 525 526EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \ 527 $NO_UNDEFINED -version-info libpcreposix_version" 528 529EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \ 530 $NO_UNDEFINED -version-info libpcrecpp_version \ 531 $EXPORT_ALL_SYMBOLS" 532 533AC_SUBST(EXTRA_LIBPCRE_LDFLAGS) 534AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS) 535AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS) 536 537# When we run 'make distcheck', use these arguments. 538DISTCHECK_CONFIGURE_FLAGS="--enable-cpp --enable-unicode-properties" 539AC_SUBST(DISTCHECK_CONFIGURE_FLAGS) 540 541# Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is 542# specified, the relevant library is available. If so, add it to LIBS. 543 544if test "$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 554fi 555 556if 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="$LIBS -lbz2"; fi 566fi 567 568# Similarly for --enable-pcretest-readline 569 570if test "$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 580fi 581 582# Produce these files, in addition to config.h. 583AC_CONFIG_FILES( 584 Makefile 585 libpcre.pc 586 libpcrecpp.pc 587 pcre-config 588 pcre.h 589 pcre_stringpiece.h 590 pcrecpparg.h 591) 592 593# Make the generated script files executable. 594AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config]) 595 596# Make sure that pcre_chartables.c is removed in case the method for 597# creating it was changed by reconfiguration. 598AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c]) 599 600AC_OUTPUT 601 602# Print out a nice little message after configure is run displaying your 603# chosen options. 604 605cat <<EOF 606 607$PACKAGE-$VERSION configuration summary: 608 609 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} 620 621 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 Link pcretest with libreadline .. : ${enable_pcretest_libreadline} 638 639EOF 640 641dnl end configure.ac