| dnl Process this file with autoconf to produce a configure script. |
| |
| dnl NOTE FOR MAINTAINERS: Do not use minor version numbers 08 or 09 because |
| dnl the leading zeros may cause them to be treated as invalid octal constants |
| dnl if a PCRE user writes code that uses PCRE_MINOR as a number. There is now |
| dnl a check further down that throws an error if 08 or 09 are used. |
| |
| dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might |
| dnl be defined as -RC2, for example. For real releases, it should be empty. |
| |
| m4_define(pcre_major, [8]) |
| m4_define(pcre_minor, [21]) |
| m4_define(pcre_prerelease, []) |
| m4_define(pcre_date, [2011-12-12]) |
| |
| # Libtool shared library interface versions (current:revision:age) |
| m4_define(libpcre_version, [0:1:0]) |
| m4_define(libpcreposix_version, [0:0:0]) |
| m4_define(libpcrecpp_version, [0:0:0]) |
| |
| AC_PREREQ(2.57) |
| AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre) |
| AC_CONFIG_SRCDIR([pcre.h.in]) |
| AM_INIT_AUTOMAKE([dist-bzip2 dist-zip]) |
| AC_CONFIG_HEADERS(config.h) |
| |
| # This was added at the suggestion of libtoolize (03-Jan-10) |
| AC_CONFIG_MACRO_DIR([m4]) |
| |
| # The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just |
| # "-g" for any other compiler. There doesn't seem to be a standard way of |
| # getting rid of the -g (which I don't think is needed for a production |
| # library). This fudge seems to achieve the necessary. First, we remember the |
| # externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and |
| # AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not |
| # set, they will be set to Autoconf's defaults. Afterwards, if the original |
| # values were not set, remove the -g from the Autoconf defaults. |
| # (PH 02-May-07) |
| |
| remember_set_CFLAGS="$CFLAGS" |
| remember_set_CXXFLAGS="$CXXFLAGS" |
| |
| AC_PROG_CC |
| AC_PROG_CXX |
| |
| if test "x$remember_set_CFLAGS" = "x" |
| then |
| if test "$CFLAGS" = "-g -O2" |
| then |
| CFLAGS="-O2" |
| elif test "$CFLAGS" = "-g" |
| then |
| CFLAGS="" |
| fi |
| fi |
| |
| if test "x$remember_set_CXXFLAGS" = "x" |
| then |
| if test "$CXXFLAGS" = "-g -O2" |
| then |
| CXXFLAGS="-O2" |
| elif test "$CXXFLAGS" = "-g" |
| then |
| CXXFLAGS="" |
| fi |
| fi |
| |
| # AC_PROG_CXX will return "g++" even if no c++ compiler is installed. |
| # Check for that case, and just disable c++ code if g++ doesn't run. |
| AC_LANG_PUSH(C++) |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],, CXX=""; CXXCP=""; CXXFLAGS="") |
| AC_LANG_POP |
| |
| # Check for a 64-bit integer type |
| AC_TYPE_INT64_T |
| |
| AC_PROG_INSTALL |
| AC_LIBTOOL_WIN32_DLL |
| LT_INIT |
| AC_PROG_LN_S |
| |
| PCRE_MAJOR="pcre_major" |
| PCRE_MINOR="pcre_minor" |
| PCRE_PRERELEASE="pcre_prerelease" |
| PCRE_DATE="pcre_date" |
| |
| if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09" |
| then |
| echo "***" |
| echo "*** Minor version number $PCRE_MINOR must not be used. ***" |
| echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***" |
| echo "***" |
| exit 1 |
| fi |
| |
| AC_SUBST(PCRE_MAJOR) |
| AC_SUBST(PCRE_MINOR) |
| AC_SUBST(PCRE_PRERELEASE) |
| AC_SUBST(PCRE_DATE) |
| |
| # Set a more sensible default value for $(htmldir). |
| if test "x$htmldir" = 'x${docdir}' |
| then |
| htmldir='${docdir}/html' |
| fi |
| |
| # Handle --disable-cpp. The substitution of enable_cpp is needed for use in |
| # pcre-config. |
| AC_ARG_ENABLE(cpp, |
| AS_HELP_STRING([--disable-cpp], |
| [disable C++ support]), |
| , enable_cpp=yes) |
| AC_SUBST(enable_cpp) |
| |
| # Handle --enable-jit (disabled by default) |
| AC_ARG_ENABLE(jit, |
| AS_HELP_STRING([--enable-jit], |
| [enable Just-In-Time compiling support]), |
| , enable_jit=no) |
| |
| # Handle --disable-pcregrep-jit (enabled by default) |
| AC_ARG_ENABLE(pcregrep-jit, |
| AS_HELP_STRING([--disable-pcregrep-jit], |
| [disable JIT support in pcregrep]), |
| , enable_pcregrep_jit=yes) |
| |
| # Handle --enable-rebuild-chartables |
| AC_ARG_ENABLE(rebuild-chartables, |
| AS_HELP_STRING([--enable-rebuild-chartables], |
| [rebuild character tables in current locale]), |
| , enable_rebuild_chartables=no) |
| |
| # Handle --enable-utf8 (disabled by default) |
| AC_ARG_ENABLE(utf8, |
| AS_HELP_STRING([--enable-utf8], |
| [enable UTF-8 support (incompatible with --enable-ebcdic)]), |
| , enable_utf8=unset) |
| |
| # Handle --enable-unicode-properties |
| AC_ARG_ENABLE(unicode-properties, |
| AS_HELP_STRING([--enable-unicode-properties], |
| [enable Unicode properties support (implies --enable-utf8)]), |
| , enable_unicode_properties=no) |
| |
| # Handle --enable-newline=NL |
| dnl AC_ARG_ENABLE(newline, |
| dnl AS_HELP_STRING([--enable-newline=NL], |
| dnl [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]), |
| dnl , enable_newline=lf) |
| |
| # Separate newline options |
| ac_pcre_newline=lf |
| AC_ARG_ENABLE(newline-is-cr, |
| AS_HELP_STRING([--enable-newline-is-cr], |
| [use CR as newline character]), |
| ac_pcre_newline=cr) |
| AC_ARG_ENABLE(newline-is-lf, |
| AS_HELP_STRING([--enable-newline-is-lf], |
| [use LF as newline character (default)]), |
| ac_pcre_newline=lf) |
| AC_ARG_ENABLE(newline-is-crlf, |
| AS_HELP_STRING([--enable-newline-is-crlf], |
| [use CRLF as newline sequence]), |
| ac_pcre_newline=crlf) |
| AC_ARG_ENABLE(newline-is-anycrlf, |
| AS_HELP_STRING([--enable-newline-is-anycrlf], |
| [use CR, LF, or CRLF as newline sequence]), |
| ac_pcre_newline=anycrlf) |
| AC_ARG_ENABLE(newline-is-any, |
| AS_HELP_STRING([--enable-newline-is-any], |
| [use any valid Unicode newline sequence]), |
| ac_pcre_newline=any) |
| enable_newline="$ac_pcre_newline" |
| |
| # Handle --enable-bsr-anycrlf |
| AC_ARG_ENABLE(bsr-anycrlf, |
| AS_HELP_STRING([--enable-bsr-anycrlf], |
| [\R matches only CR, LF, CRLF by default]), |
| , enable_bsr_anycrlf=no) |
| |
| # Handle --enable-ebcdic |
| AC_ARG_ENABLE(ebcdic, |
| AS_HELP_STRING([--enable-ebcdic], |
| [assume EBCDIC coding rather than ASCII; incompatible with --enable-utf8; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]), |
| , enable_ebcdic=no) |
| |
| # Handle --disable-stack-for-recursion |
| AC_ARG_ENABLE(stack-for-recursion, |
| AS_HELP_STRING([--disable-stack-for-recursion], |
| [don't use stack recursion when matching]), |
| , enable_stack_for_recursion=yes) |
| |
| # Handle --enable-pcregrep-libz |
| AC_ARG_ENABLE(pcregrep-libz, |
| AS_HELP_STRING([--enable-pcregrep-libz], |
| [link pcregrep with libz to handle .gz files]), |
| , enable_pcregrep_libz=no) |
| |
| # Handle --enable-pcregrep-libbz2 |
| AC_ARG_ENABLE(pcregrep-libbz2, |
| AS_HELP_STRING([--enable-pcregrep-libbz2], |
| [link pcregrep with libbz2 to handle .bz2 files]), |
| , enable_pcregrep_libbz2=no) |
| |
| # Handle --with-pcregrep-bufsize=N |
| AC_ARG_WITH(pcregrep-bufsize, |
| AS_HELP_STRING([--with-pcregrep-bufsize=N], |
| [pcregrep buffer size (default=20480)]), |
| , with_pcregrep_bufsize=20480) |
| |
| # Handle --enable-pcretest-libreadline |
| AC_ARG_ENABLE(pcretest-libreadline, |
| AS_HELP_STRING([--enable-pcretest-libreadline], |
| [link pcretest with libreadline]), |
| , enable_pcretest_libreadline=no) |
| |
| # Handle --with-posix-malloc-threshold=NBYTES |
| AC_ARG_WITH(posix-malloc-threshold, |
| AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES], |
| [threshold for POSIX malloc usage (default=10)]), |
| , with_posix_malloc_threshold=10) |
| |
| # Handle --with-link-size=N |
| AC_ARG_WITH(link-size, |
| AS_HELP_STRING([--with-link-size=N], |
| [internal link size (2, 3, or 4 allowed; default=2)]), |
| , with_link_size=2) |
| |
| # Handle --with-match-limit=N |
| AC_ARG_WITH(match-limit, |
| AS_HELP_STRING([--with-match-limit=N], |
| [default limit on internal looping (default=10000000)]), |
| , with_match_limit=10000000) |
| |
| # Handle --with-match-limit_recursion=N |
| # |
| # Note: In config.h, the default is to define MATCH_LIMIT_RECURSION |
| # symbolically as MATCH_LIMIT, which in turn is defined to be some numeric |
| # value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some |
| # different numeric value (or even the same numeric value as MATCH_LIMIT, |
| # though no longer defined in terms of the latter). |
| # |
| AC_ARG_WITH(match-limit-recursion, |
| AS_HELP_STRING([--with-match-limit-recursion=N], |
| [default limit on internal recursion (default=MATCH_LIMIT)]), |
| , with_match_limit_recursion=MATCH_LIMIT) |
| |
| # Make sure that if enable_unicode_properties was set, that UTF-8 support |
| # is enabled. |
| # |
| if test "x$enable_unicode_properties" = "xyes" |
| then |
| if test "x$enable_utf8" = "xno" |
| then |
| AC_MSG_ERROR([support for Unicode properties requires UTF-8 support]) |
| fi |
| enable_utf8=yes |
| fi |
| |
| if test "x$enable_utf8" = "xunset" |
| then |
| enable_utf8=no |
| fi |
| |
| # Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled. |
| # Also check that UTF-8 support is not requested, because PCRE cannot handle |
| # EBCDIC and UTF-8 in the same build. To do so it would need to use different |
| # character constants depending on the mode. |
| # |
| if test "x$enable_ebcdic" = "xyes" |
| then |
| enable_rebuild_chartables=yes |
| if test "x$enable_utf8" = "xyes" |
| then |
| AC_MSG_ERROR([support for EBCDIC and UTF-8 cannot be enabled at the same time]) |
| fi |
| fi |
| |
| # Convert the newline identifier into the appropriate integer value. |
| case "$enable_newline" in |
| lf) ac_pcre_newline_value=10 ;; |
| cr) ac_pcre_newline_value=13 ;; |
| crlf) ac_pcre_newline_value=3338 ;; |
| anycrlf) ac_pcre_newline_value=-2 ;; |
| any) ac_pcre_newline_value=-1 ;; |
| *) |
| AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option]) |
| ;; |
| esac |
| |
| # Check argument to --with-link-size |
| case "$with_link_size" in |
| 2|3|4) ;; |
| *) |
| AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option]) |
| ;; |
| esac |
| |
| AH_TOP([ |
| /* On Unix-like systems config.h.in is converted by "configure" into config.h. |
| Some other environments also support the use of "configure". PCRE is written in |
| Standard C, but there are a few non-standard things it can cope with, allowing |
| it to run on SunOS4 and other "close to standard" systems. |
| |
| If you are going to build PCRE "by hand" on a system without "configure" you |
| should copy the distributed config.h.generic to config.h, and then set up the |
| macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to |
| all of your compile commands, so that config.h is included at the start of |
| every source. |
| |
| Alternatively, you can avoid editing by using -D on the compiler command line |
| to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H. |
| |
| PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if |
| HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set |
| them both to 0; an emulation function will be used. */]) |
| |
| # Checks for header files. |
| AC_HEADER_STDC |
| AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h) |
| |
| # The files below are C++ header files. |
| pcre_have_type_traits="0" |
| pcre_have_bits_type_traits="0" |
| if test "x$enable_cpp" = "xyes" -a -n "$CXX" |
| then |
| AC_LANG_PUSH(C++) |
| |
| # Older versions of pcre defined pcrecpp::no_arg, but in new versions |
| # it's called pcrecpp::RE::no_arg. For backwards ABI compatibility, |
| # we want to make one an alias for the other. Different systems do |
| # this in different ways. Some systems, for instance, can do it via |
| # a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4). |
| OLD_LDFLAGS="$LDFLAGS" |
| for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \ |
| "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do |
| AC_MSG_CHECKING([for alias support in the linker]) |
| LDFLAGS="$OLD_LDFLAGS -Wl,$flag" |
| # We try to run the linker with this new ld flag. If the link fails, |
| # we give up and remove the new flag from LDFLAGS. |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace pcrecpp { |
| class RE { static int no_arg; }; |
| int RE::no_arg; |
| }], |
| [])], |
| [AC_MSG_RESULT([yes]); |
| EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag"; |
| break;], |
| AC_MSG_RESULT([no])) |
| done |
| LDFLAGS="$OLD_LDFLAGS" |
| |
| # We could be more clever here, given we're doing AC_SUBST with this |
| # (eg set a var to be the name of the include file we want). But we're not |
| # so it's easy to change back to 'regular' autoconf vars if we needed to. |
| AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"], |
| [pcre_have_cpp_headers="0"]) |
| AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"], |
| [pcre_have_bits_type_traits="0"]) |
| AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"], |
| [pcre_have_type_traits="0"]) |
| |
| # (This isn't c++-specific, but is only used in pcrecpp.cc, so try this |
| # in a c++ context. This matters becuase strtoimax is C99 and may not |
| # be supported by the C++ compiler.) |
| # Figure out how to create a longlong from a string: strtoll and |
| # equiv. It's not enough to call AC_CHECK_FUNCS: hpux has a |
| # strtoll, for instance, but it only takes 2 args instead of 3! |
| # We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex. |
| AH_TEMPLATE(HAVE_STRTOQ, [Define to 1 if you have `strtoq'.]) |
| AH_TEMPLATE(HAVE_STRTOLL, [Define to 1 if you have `strtoll'.]) |
| AH_TEMPLATE(HAVE__STRTOI64, [Define to 1 if you have `_strtoi64'.]) |
| AH_TEMPLATE(HAVE_STRTOIMAX, [Define to 1 if you have `strtoimax'.]) |
| have_strto_fn=0 |
| for fn in strtoq strtoll _strtoi64 strtoimax; do |
| AC_MSG_CHECKING([for $fn]) |
| if test "$fn" = strtoimax; then |
| include=stdint.h |
| else |
| include=stdlib.h |
| fi |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <$include>], |
| [char* e; return $fn("100", &e, 10)])], |
| [AC_MSG_RESULT(yes) |
| AC_DEFINE_UNQUOTED(HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`, 1, |
| [Define to 1 if you have `$fn'.]) |
| have_strto_fn=1 |
| break], |
| [AC_MSG_RESULT(no)]) |
| done |
| |
| if test "$have_strto_fn" = 1; then |
| AC_CHECK_TYPES([long long], |
| [pcre_have_long_long="1"], |
| [pcre_have_long_long="0"]) |
| AC_CHECK_TYPES([unsigned long long], |
| [pcre_have_ulong_long="1"], |
| [pcre_have_ulong_long="0"]) |
| else |
| pcre_have_long_long="0" |
| pcre_have_ulong_long="0" |
| fi |
| AC_SUBST(pcre_have_long_long) |
| AC_SUBST(pcre_have_ulong_long) |
| |
| AC_LANG_POP |
| fi |
| # Using AC_SUBST eliminates the need to include config.h in a public .h file |
| AC_SUBST(pcre_have_type_traits) |
| AC_SUBST(pcre_have_bits_type_traits) |
| |
| # Conditional compilation |
| AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes") |
| AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes") |
| AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes") |
| AM_CONDITIONAL(WITH_UTF8, test "x$enable_utf8" = "xyes") |
| |
| # Checks for typedefs, structures, and compiler characteristics. |
| |
| AC_C_CONST |
| AC_TYPE_SIZE_T |
| |
| # Checks for library functions. |
| |
| AC_CHECK_FUNCS(bcopy memmove strerror) |
| |
| # Check for the availability of libz (aka zlib) |
| |
| AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1]) |
| AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1]) |
| |
| # Check for the availability of libbz2. Originally we just used AC_CHECK_LIB, |
| # as for libz. However, this had the following problem, diagnosed and fixed by |
| # a user: |
| # |
| # - libbz2 uses the Pascal calling convention (WINAPI) for the functions |
| # under Win32. |
| # - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h", |
| # therefore missing the function definition. |
| # - The compiler thus generates a "C" signature for the test function. |
| # - The linker fails to find the "C" function. |
| # - PCRE fails to configure if asked to do so against libbz2. |
| # |
| # Solution: |
| # |
| # - Replace the AC_CHECK_LIB test with a custom test. |
| |
| AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1]) |
| # Original test |
| # AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1]) |
| # |
| # Custom test follows |
| |
| AC_MSG_CHECKING([for libbz2]) |
| OLD_LIBS="$LIBS" |
| LIBS="$LIBS -lbz2" |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([[ |
| #ifdef HAVE_BZLIB_H |
| #include <bzlib.h> |
| #endif]], |
| [[return (int)BZ2_bzopen("conftest", "rb");]])], |
| [AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;], |
| AC_MSG_RESULT([no])) |
| LIBS="$OLD_LIBS" |
| |
| # Check for the availabiity of libreadline |
| |
| AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1]) |
| AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1]) |
| AC_CHECK_LIB([readline], [readline], [HAVE_LIB_READLINE=1]) |
| |
| # This facilitates -ansi builds under Linux |
| dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc]) |
| |
| PCRE_STATIC_CFLAG="" |
| if test "x$enable_shared" = "xno" ; then |
| AC_DEFINE([PCRE_STATIC], [1], [ |
| Define if linking statically (TODO: make nice with Libtool)]) |
| PCRE_STATIC_CFLAG="-DPCRE_STATIC" |
| fi |
| AC_SUBST(PCRE_STATIC_CFLAG) |
| |
| # Here is where pcre specific defines are handled |
| |
| if test "$enable_jit" = "yes"; then |
| AC_DEFINE([SUPPORT_JIT], [], [ |
| Define to enable support for Just-In-Time compiling.]) |
| else |
| enable_pcregrep_jit="no" |
| fi |
| |
| if test "$enable_pcregrep_jit" = "yes"; then |
| AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [ |
| Define to enable JIT support in pcregrep.]) |
| fi |
| |
| if test "$enable_utf8" = "yes"; then |
| AC_DEFINE([SUPPORT_UTF8], [], [ |
| Define to enable support for the UTF-8 Unicode encoding. This will |
| work even in an EBCDIC environment, but it is incompatible with |
| the EBCDIC macro. That is, PCRE can support *either* EBCDIC code |
| *or* ASCII/UTF-8, but not both at once.]) |
| fi |
| |
| if test "$enable_unicode_properties" = "yes"; then |
| AC_DEFINE([SUPPORT_UCP], [], [ |
| Define to enable support for Unicode properties.]) |
| fi |
| |
| if test "$enable_stack_for_recursion" = "no"; then |
| AC_DEFINE([NO_RECURSE], [], [ |
| PCRE uses recursive function calls to handle backtracking while |
| matching. This can sometimes be a problem on systems that have |
| stacks of limited size. Define NO_RECURSE to get a version that |
| doesn't use recursion in the match() function; instead it creates |
| its own stack by steam using pcre_recurse_malloc() to obtain memory |
| from the heap. For more detail, see the comments and other stuff |
| just above the match() function. On systems that support it, |
| "configure" can be used to set this in the Makefile |
| (use --disable-stack-for-recursion).]) |
| fi |
| |
| if test "$enable_pcregrep_libz" = "yes"; then |
| AC_DEFINE([SUPPORT_LIBZ], [], [ |
| Define to allow pcregrep to be linked with libz, so that it is |
| able to handle .gz files.]) |
| fi |
| |
| if test "$enable_pcregrep_libbz2" = "yes"; then |
| AC_DEFINE([SUPPORT_LIBBZ2], [], [ |
| Define to allow pcregrep to be linked with libbz2, so that it is |
| able to handle .bz2 files.]) |
| fi |
| |
| if test $with_pcregrep_bufsize -lt 8192 ; then |
| with_pcregrep_bufsize="8192" |
| fi |
| |
| AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [ |
| The value of PCREGREP_BUFSIZE determines the size of buffer used by |
| pcregrep to hold parts of the file it is searching. On systems that |
| support it, "configure" can be used to override the default, which is |
| 8192. This is also the minimum value. The actual amount of memory used by |
| pcregrep is three times this number, because it allows for the buffering of |
| "before" and "after" lines.]) |
| |
| if test "$enable_pcretest_libreadline" = "yes"; then |
| AC_DEFINE([SUPPORT_LIBREADLINE], [], [ |
| Define to allow pcretest to be linked with libreadline.]) |
| fi |
| |
| AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [ |
| The value of NEWLINE determines the newline character sequence. On |
| systems that support it, "configure" can be used to override the |
| default, which is 10. The possible values are 10 (LF), 13 (CR), |
| 3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).]) |
| |
| if test "$enable_bsr_anycrlf" = "yes"; then |
| AC_DEFINE([BSR_ANYCRLF], [], [ |
| By default, the \R escape sequence matches any Unicode line ending |
| character or sequence of characters. If BSR_ANYCRLF is defined, this is |
| changed so that backslash-R matches only CR, LF, or CRLF. The build- |
| time default can be overridden by the user of PCRE at runtime. On |
| systems that support it, "configure" can be used to override the |
| default.]) |
| fi |
| |
| AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [ |
| The value of LINK_SIZE determines the number of bytes used to store |
| links as offsets within the compiled regex. The default is 2, which |
| allows for compiled patterns up to 64K long. This covers the vast |
| majority of cases. However, PCRE can also be compiled to use 3 or 4 |
| bytes instead. This allows for longer patterns in extreme cases. On |
| systems that support it, "configure" can be used to override this default.]) |
| |
| AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [ |
| When calling PCRE via the POSIX interface, additional working storage |
| is required for holding the pointers to capturing substrings because |
| PCRE requires three integers per substring, whereas the POSIX |
| interface provides only two. If the number of expected substrings is |
| small, the wrapper function uses space on the stack, because this is |
| faster than using malloc() for each call. The threshold above which |
| the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On |
| systems that support it, "configure" can be used to override this |
| default.]) |
| |
| AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [ |
| The value of MATCH_LIMIT determines the default number of times the |
| internal match() function can be called during a single execution of |
| pcre_exec(). There is a runtime interface for setting a different |
| limit. The limit exists in order to catch runaway regular |
| expressions that take for ever to determine that they do not match. |
| The default is set very large so that it does not accidentally catch |
| legitimate cases. On systems that support it, "configure" can be |
| used to override this default default.]) |
| |
| AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [ |
| The above limit applies to all calls of match(), whether or not they |
| increase the recursion depth. In some environments it is desirable |
| to limit the depth of recursive calls of match() more strictly, in |
| order to restrict the maximum amount of stack (or heap, if |
| NO_RECURSE is defined) that is used. The value of |
| MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To |
| have any useful effect, it must be less than the value of |
| MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT. |
| There is a runtime method for setting a different limit. On systems |
| that support it, "configure" can be used to override the default.]) |
| |
| AC_DEFINE([MAX_NAME_SIZE], [32], [ |
| This limit is parameterized just in case anybody ever wants to |
| change it. Care must be taken if it is increased, because it guards |
| against integer overflow caused by enormously large patterns.]) |
| |
| AC_DEFINE([MAX_NAME_COUNT], [10000], [ |
| This limit is parameterized just in case anybody ever wants to |
| change it. Care must be taken if it is increased, because it guards |
| against integer overflow caused by enormously large patterns.]) |
| |
| AH_VERBATIM([PCRE_EXP_DEFN], [ |
| /* If you are compiling for a system other than a Unix-like system or |
| Win32, and it needs some magic to be inserted before the definition |
| of a function that is exported by the library, define this macro to |
| contain the relevant magic. If you do not define this macro, it |
| defaults to "extern" for a C compiler and "extern C" for a C++ |
| compiler on non-Win32 systems. This macro apears at the start of |
| every exported function that is part of the external API. It does |
| not appear on functions that are "external" in the C sense, but |
| which are internal to the library. */ |
| #undef PCRE_EXP_DEFN]) |
| |
| if test "$enable_ebcdic" = "yes"; then |
| AC_DEFINE_UNQUOTED([EBCDIC], [], [ |
| If you are compiling for a system that uses EBCDIC instead of ASCII |
| character codes, define this macro as 1. On systems that can use |
| "configure", this can be done via --enable-ebcdic. PCRE will then |
| assume that all input strings are in EBCDIC. If you do not define |
| this macro, PCRE will assume input strings are ASCII or UTF-8 Unicode. |
| It is not possible to build a version of PCRE that supports both |
| EBCDIC and UTF-8.]) |
| fi |
| |
| # Platform specific issues |
| NO_UNDEFINED= |
| EXPORT_ALL_SYMBOLS= |
| case $host_os in |
| cygwin* | mingw* ) |
| if test X"$enable_shared" = Xyes; then |
| NO_UNDEFINED="-no-undefined" |
| EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols" |
| fi |
| ;; |
| esac |
| |
| # The extra LDFLAGS for each particular library |
| # (Note: The libpcre*_version bits are m4 variables, assigned above) |
| |
| EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \ |
| $NO_UNDEFINED -version-info libpcre_version" |
| |
| EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \ |
| $NO_UNDEFINED -version-info libpcreposix_version" |
| |
| EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \ |
| $NO_UNDEFINED -version-info libpcrecpp_version \ |
| $EXPORT_ALL_SYMBOLS" |
| |
| AC_SUBST(EXTRA_LIBPCRE_LDFLAGS) |
| AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS) |
| AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS) |
| |
| # When we run 'make distcheck', use these arguments. |
| DISTCHECK_CONFIGURE_FLAGS="--enable-jit --enable-cpp --enable-unicode-properties" |
| AC_SUBST(DISTCHECK_CONFIGURE_FLAGS) |
| |
| # Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is |
| # specified, the relevant library is available. |
| |
| if test "$enable_pcregrep_libz" = "yes"; then |
| if test "$HAVE_ZLIB_H" != "1"; then |
| echo "** Cannot --enable-pcregrep-libz because zlib.h was not found" |
| exit 1 |
| fi |
| if test "$HAVE_LIBZ" != "1"; then |
| echo "** Cannot --enable-pcregrep-libz because libz was not found" |
| exit 1 |
| fi |
| LIBZ="-lz" |
| fi |
| AC_SUBST(LIBZ) |
| |
| if test "$enable_pcregrep_libbz2" = "yes"; then |
| if test "$HAVE_BZLIB_H" != "1"; then |
| echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found" |
| exit 1 |
| fi |
| if test "$HAVE_LIBBZ2" != "1"; then |
| echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found" |
| exit 1 |
| fi |
| LIBBZ2="-lbz2" |
| fi |
| AC_SUBST(LIBBZ2) |
| |
| # Similarly for --enable-pcretest-readline |
| |
| if test "$enable_pcretest_libreadline" = "yes"; then |
| if test "$HAVE_READLINE_H" != "1"; then |
| echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found." |
| exit 1 |
| fi |
| if test "$HAVE_HISTORY_H" != "1"; then |
| echo "** Cannot --enable-pcretest-readline because readline/history.h was not found." |
| exit 1 |
| fi |
| LIBREADLINE="-lreadline" |
| fi |
| AC_SUBST(LIBREADLINE) |
| |
| # Produce these files, in addition to config.h. |
| AC_CONFIG_FILES( |
| Makefile |
| libpcre.pc |
| libpcreposix.pc |
| libpcrecpp.pc |
| pcre-config |
| pcre.h |
| pcre_stringpiece.h |
| pcrecpparg.h |
| ) |
| |
| # Make the generated script files executable. |
| AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config]) |
| |
| # Make sure that pcre_chartables.c is removed in case the method for |
| # creating it was changed by reconfiguration. |
| AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c]) |
| |
| AC_OUTPUT |
| |
| # Print out a nice little message after configure is run displaying your |
| # chosen options. |
| |
| cat <<EOF |
| |
| $PACKAGE-$VERSION configuration summary: |
| |
| Install prefix .................. : ${prefix} |
| C preprocessor .................. : ${CPP} |
| C compiler ...................... : ${CC} |
| C++ preprocessor ................ : ${CXXCPP} |
| C++ compiler .................... : ${CXX} |
| Linker .......................... : ${LD} |
| C preprocessor flags ............ : ${CPPFLAGS} |
| C compiler flags ................ : ${CFLAGS} |
| C++ compiler flags .............. : ${CXXFLAGS} |
| Linker flags .................... : ${LDFLAGS} |
| Extra libraries ................. : ${LIBS} |
| |
| Build C++ library ............... : ${enable_cpp} |
| Enable JIT compiling support .... : ${enable_jit} |
| Enable UTF-8 support ............ : ${enable_utf8} |
| Unicode properties .............. : ${enable_unicode_properties} |
| Newline char/sequence ........... : ${enable_newline} |
| \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf} |
| EBCDIC coding ................... : ${enable_ebcdic} |
| Rebuild char tables ............. : ${enable_rebuild_chartables} |
| Use stack recursion ............. : ${enable_stack_for_recursion} |
| POSIX mem threshold ............. : ${with_posix_malloc_threshold} |
| Internal link size .............. : ${with_link_size} |
| Match limit ..................... : ${with_match_limit} |
| Match limit recursion ........... : ${with_match_limit_recursion} |
| Build shared libs ............... : ${enable_shared} |
| Build static libs ............... : ${enable_static} |
| Use JIT in pcregrep ............. : ${enable_pcregrep_jit} |
| Buffer size for pcregrep ........ : ${with_pcregrep_bufsize} |
| Link pcregrep with libz ......... : ${enable_pcregrep_libz} |
| Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2} |
| Link pcretest with libreadline .. : ${enable_pcretest_libreadline} |
| |
| EOF |
| |
| dnl end configure.ac |