fish-shell/pcre2-10.20/configure.ac

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Merge new string builtin This adds the new builtin 'string' which supports various string manipulation and matching algorithms, including PCRE based regular expressions. Fixes #2296 Squashed commit of the following: commit 4c3eaeb6e57d76463e9683c327142b0aeafb92b8 Author: ridiculousfish <corydoras@ridiculousfish.com> Date: Sat Sep 12 12:51:30 2015 -0700 Remove testdata and doc dirs from pcre2 source commit b2a8b4b50f2398b204fb72cfe4b5ba77ece2e1ab Merge: 11c8a47 7974aab Author: ridiculousfish <corydoras@ridiculousfish.com> Date: Sat Sep 12 12:32:40 2015 -0700 Merge branch 'string' of git://github.com/msteed/fish-shell into string-test commit 7974aab6d367f999f1140ab34c2535cef5cf3b00 Author: Michael Steed <msteed@saltstack.com> Date: Fri Sep 11 13:00:02 2015 -0600 build pcre2 lib only, no docs commit eb20b43d2d96b7e6d24618158ce71078de83c40b Merge: 1a09e70 5f519cb Author: Michael Steed <msteed68@gmail.com> Date: Thu Sep 10 20:00:47 2015 -0600 Merge branch 'string' of github.com:msteed/fish-shell into string commit 1a09e709d028393c9e9e6dc9a84278f399a15f3d Author: Michael Steed <msteed68@gmail.com> Date: Thu Sep 10 19:58:24 2015 -0600 rebase on master & address the fallout commit a0ec9772cd1a0a548a501a7633be05dab4e5ee46 Author: Michael Steed <msteed68@gmail.com> Date: Thu Sep 10 19:26:45 2015 -0600 use fish's wildcard_match() for glob matching commit 64c25a01e3f7234f220ba13545cf658a7492b1a4 Author: Michael Steed <msteed68@gmail.com> Date: Thu Aug 27 08:19:23 2015 -0600 some fixes from review - string_get_arg_stdin(): simplify and don't discard the argument when the trailing newline is absent - fix calls to pcre2 for e.g. string match -r -a 'a*' 'b' - correct test for args coming from stdin commit ece7f35ec5f4093763627d68d671b6c0c876896d Author: Michael Steed <msteed68@gmail.com> Date: Sat Aug 22 19:35:56 2015 -0600 fixes from review - Makefile.in: restore iwyu target - regex_replacer_t::replace_matches(): correct size passed to realloc() commit 9ff7477a926c4572e26171cab3cd42f8086be678 Author: Michael Steed <msteed68@gmail.com> Date: Thu Aug 20 13:08:33 2015 -0600 Minor doc improvements commit baf4e096b22dde3063b85b833795eb570d660ba7 Author: Michael Steed <msteed68@gmail.com> Date: Wed Aug 19 18:29:02 2015 -0600 another attempt to fix the ci build commit 896a2c2b279a419747bea26102229fbe84534a6f Author: Michael Steed <msteed68@gmail.com> Date: Wed Aug 19 18:03:49 2015 -0600 Updates after review comments - make match/replace without -a operate on the first match on each argument - use different exit codes for "no operation performed" and errors, as grep does - refactor regex compile code - use human-friendly error messages from pcre2 - improve error handling & reporting elsewhere - add a few tests - make some doc fixes - some simplification & cleanup - fix ci build failure (I hope) commit efd47dcbda2ca247d58bee56a7774cd75a1062fd Author: Michael Steed <msteed68@gmail.com> Date: Wed Aug 12 00:26:07 2015 -0600 fix dependencies for parallel make commit ed0850e2db467362066a3d94e3ececd17c1756cd Author: Michael Steed <msteed68@gmail.com> Date: Tue Aug 11 23:37:22 2015 -0600 Add missing pcre2 files + .gitignore commit 9492e7a7e929c03554336be1ddf80ca6b37f53c5 Author: Michael Steed <msteed68@gmail.com> Date: Tue Aug 11 22:44:05 2015 -0600 add pcre2-10.20 and update license.hdr commit 1a60b933718feb20c0bf7c9e257b8e495014ea1b Author: Michael Steed <msteed68@gmail.com> Date: Tue Aug 11 22:41:19 2015 -0600 add string builtin files - string builtin source, tests, & docs - changes to configure.ac & Makefile.in commit 5f519cb2a2c05213e0a88a7add7af288bc1c1352 Author: Michael Steed <msteed68@gmail.com> Date: Thu Sep 10 19:26:45 2015 -0600 use fish's wildcard_match() for glob matching commit 2ecd24f79500879e2de5bdf1b4c19dd44fc6ac85 Author: Michael Steed <msteed68@gmail.com> Date: Thu Aug 27 08:19:23 2015 -0600 some fixes from review - string_get_arg_stdin(): simplify and don't discard the argument when the trailing newline is absent - fix calls to pcre2 for e.g. string match -r -a 'a*' 'b' - correct test for args coming from stdin commit 45b777e4dc85c05cd4a186f4bdcae543c21aaf08 Author: Michael Steed <msteed68@gmail.com> Date: Sat Aug 22 19:35:56 2015 -0600 fixes from review - Makefile.in: restore iwyu target - regex_replacer_t::replace_matches(): correct size passed to realloc() commit 981cbb6ddf742a5fe8881af916e7b870b7e6422a Author: Michael Steed <msteed68@gmail.com> Date: Thu Aug 20 13:08:33 2015 -0600 Minor doc improvements commit ddb6a2a8fdb6aa31aad41e80d5481bb32c6ed8ff Author: Michael Steed <msteed68@gmail.com> Date: Wed Aug 19 18:29:02 2015 -0600 another attempt to fix the ci build commit 1e34e3191b028162863d263e9868052f75194aa5 Author: Michael Steed <msteed68@gmail.com> Date: Wed Aug 19 18:03:49 2015 -0600 Updates after review comments - make match/replace without -a operate on the first match on each argument - use different exit codes for "no operation performed" and errors, as grep does - refactor regex compile code - use human-friendly error messages from pcre2 - improve error handling & reporting elsewhere - add a few tests - make some doc fixes - some simplification & cleanup - fix ci build failure (I hope) commit 34232e152df17a3cfbf0a094dd51d148a4f04e6f Author: Michael Steed <msteed68@gmail.com> Date: Wed Aug 12 00:26:07 2015 -0600 fix dependencies for parallel make commit 00d7e781697f53454beb91c1d0fc4b2d28d6e034 Author: Michael Steed <msteed68@gmail.com> Date: Tue Aug 11 23:37:22 2015 -0600 Add missing pcre2 files + .gitignore commit 4498aa5f576e09634f7f619443e74d2f33c108e4 Author: Michael Steed <msteed68@gmail.com> Date: Tue Aug 11 22:44:05 2015 -0600 add pcre2-10.20 and update license.hdr commit 290c58c72e22db644ccf6fa9088051644980ed0a Author: Michael Steed <msteed68@gmail.com> Date: Tue Aug 11 22:41:19 2015 -0600 add string builtin files - string builtin source, tests, & docs - changes to configure.ac & Makefile.in
2015-09-12 19:59:40 +00:00
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 PCRE2 user writes code that uses PCRE2_MINOR as a number. There is now
dnl a check further down that throws an error if 08 or 09 are used.
dnl The PCRE2_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(pcre2_major, [10])
m4_define(pcre2_minor, [20])
m4_define(pcre2_prerelease, [])
m4_define(pcre2_date, [2015-06-30])
# NOTE: The CMakeLists.txt file searches for the above variables in the first
# 50 lines of this file. Please update that if the variables above are moved.
# Libtool shared library interface versions (current:revision:age)
m4_define(libpcre2_8_version, [2:0:2])
m4_define(libpcre2_16_version, [2:0:2])
m4_define(libpcre2_32_version, [2:0:2])
m4_define(libpcre2_posix_version, [0:0:0])
AC_PREREQ(2.57)
AC_INIT(PCRE2, pcre2_major.pcre2_minor[]pcre2_prerelease, , pcre2)
AC_CONFIG_SRCDIR([src/pcre2.h.in])
AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CONFIG_HEADERS(src/config.h)
# This is a new thing required to stop a warning from automake 1.12
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
# This was added at the suggestion of libtoolize (03-Jan-10)
AC_CONFIG_MACRO_DIR([m4])
# The default CFLAGS 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. Then call the AC_PROG_CC macro to find the compiler - if CFLAGS is
# not set, it will be set to Autoconf's defaults. Afterwards, if the original
# values were not set, remove the -g from the Autoconf defaults.
remember_set_CFLAGS="$CFLAGS"
AC_PROG_CC
AM_PROG_CC_C_O
if test "x$remember_set_CFLAGS" = "x"
then
if test "$CFLAGS" = "-g -O2"
then
CFLAGS="-O2"
elif test "$CFLAGS" = "-g"
then
CFLAGS=""
fi
fi
# Check for a 64-bit integer type
AC_TYPE_INT64_T
AC_PROG_INSTALL
AC_LIBTOOL_WIN32_DLL
LT_INIT
AC_PROG_LN_S
# Check for GCC visibility feature
PCRE2_VISIBILITY
# Versioning
PCRE2_MAJOR="pcre2_major"
PCRE2_MINOR="pcre2_minor"
PCRE2_PRERELEASE="pcre2_prerelease"
PCRE2_DATE="pcre2_date"
if test "$PCRE2_MINOR" = "08" -o "$PCRE2_MINOR" = "09"
then
echo "***"
echo "*** Minor version number $PCRE2_MINOR must not be used. ***"
echo "*** Use only 00 to 07 or 10 onwards, to avoid octal issues. ***"
echo "***"
exit 1
fi
AC_SUBST(PCRE2_MAJOR)
AC_SUBST(PCRE2_MINOR)
AC_SUBST(PCRE2_PRERELEASE)
AC_SUBST(PCRE2_DATE)
# Set a more sensible default value for $(htmldir).
if test "x$htmldir" = 'x${docdir}'
then
htmldir='${docdir}/html'
fi
# Force an error for PCRE1 size options
AC_ARG_ENABLE(pcre8,,,enable_pcre8=no)
AC_ARG_ENABLE(pcre16,,,enable_pcre16=no)
AC_ARG_ENABLE(pcre32,,,enable_pcre32=no)
if test "$enable_pcre8$enable_pcre16$enable_pcre32" != "nonono"
then
echo "** ERROR: Use --[[en|dis]]able-pcre2-[[8|16|32]], not --[[en|dis]]able-pcre[[8|16|32]]"
exit 1
fi
# Handle --disable-pcre2-8 (enabled by default)
AC_ARG_ENABLE(pcre2-8,
AS_HELP_STRING([--disable-pcre2-8],
[disable 8 bit character support]),
, enable_pcre2_8=unset)
AC_SUBST(enable_pcre2_8)
# Handle --enable-pcre2-16 (disabled by default)
AC_ARG_ENABLE(pcre2-16,
AS_HELP_STRING([--enable-pcre2-16],
[enable 16 bit character support]),
, enable_pcre2_16=unset)
AC_SUBST(enable_pcre2_16)
# Handle --enable-pcre2-32 (disabled by default)
AC_ARG_ENABLE(pcre2-32,
AS_HELP_STRING([--enable-pcre2-32],
[enable 32 bit character support]),
, enable_pcre2_32=unset)
AC_SUBST(enable_pcre2_32)
# Handle --dnable-debug (disabled by default)
AC_ARG_ENABLE(debug,
AS_HELP_STRING([--enable-debug],
[enable debugging code]),
, enable_debug=no)
# 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-pcre2grep-jit (enabled by default)
AC_ARG_ENABLE(pcre2grep-jit,
AS_HELP_STRING([--disable-pcre2grep-jit],
[disable JIT support in pcre2grep]),
, enable_pcre2grep_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 --disable-unicode (enabled by default)
AC_ARG_ENABLE(unicode,
AS_HELP_STRING([--disable-unicode],
[disable Unicode support]),
, enable_unicode=unset)
# Handle newline options
ac_pcre2_newline=lf
AC_ARG_ENABLE(newline-is-cr,
AS_HELP_STRING([--enable-newline-is-cr],
[use CR as newline character]),
ac_pcre2_newline=cr)
AC_ARG_ENABLE(newline-is-lf,
AS_HELP_STRING([--enable-newline-is-lf],
[use LF as newline character (default)]),
ac_pcre2_newline=lf)
AC_ARG_ENABLE(newline-is-crlf,
AS_HELP_STRING([--enable-newline-is-crlf],
[use CRLF as newline sequence]),
ac_pcre2_newline=crlf)
AC_ARG_ENABLE(newline-is-anycrlf,
AS_HELP_STRING([--enable-newline-is-anycrlf],
[use CR, LF, or CRLF as newline sequence]),
ac_pcre2_newline=anycrlf)
AC_ARG_ENABLE(newline-is-any,
AS_HELP_STRING([--enable-newline-is-any],
[use any valid Unicode newline sequence]),
ac_pcre2_newline=any)
enable_newline="$ac_pcre2_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-utf; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
, enable_ebcdic=no)
# Handle --enable-ebcdic-nl25
AC_ARG_ENABLE(ebcdic-nl25,
AS_HELP_STRING([--enable-ebcdic-nl25],
[set EBCDIC code for NL to 0x25 instead of 0x15; it implies --enable-ebcdic]),
, enable_ebcdic_nl25=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-pcre2grep-libz
AC_ARG_ENABLE(pcre2grep-libz,
AS_HELP_STRING([--enable-pcre2grep-libz],
[link pcre2grep with libz to handle .gz files]),
, enable_pcre2grep_libz=no)
# Handle --enable-pcre2grep-libbz2
AC_ARG_ENABLE(pcre2grep-libbz2,
AS_HELP_STRING([--enable-pcre2grep-libbz2],
[link pcre2grep with libbz2 to handle .bz2 files]),
, enable_pcre2grep_libbz2=no)
# Handle --with-pcre2grep-bufsize=N
AC_ARG_WITH(pcre2grep-bufsize,
AS_HELP_STRING([--with-pcre2grep-bufsize=N],
[pcre2grep buffer size (default=20480, minimum=8192)]),
, with_pcre2grep_bufsize=20480)
# Handle --enable-pcre2test-libedit
AC_ARG_ENABLE(pcre2test-libedit,
AS_HELP_STRING([--enable-pcre2test-libedit],
[link pcre2test with libedit]),
, enable_pcre2test_libedit=no)
# Handle --enable-pcre2test-libreadline
AC_ARG_ENABLE(pcre2test-libreadline,
AS_HELP_STRING([--enable-pcre2test-libreadline],
[link pcre2test with libreadline]),
, enable_pcre2test_libreadline=no)
# 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-parens-nest-limit=N
AC_ARG_WITH(parens-nest-limit,
AS_HELP_STRING([--with-parens-nest-limit=N],
[nested parentheses limit (default=250)]),
, with_parens_nest_limit=250)
# 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)
# Handle --enable-valgrind
AC_ARG_ENABLE(valgrind,
AS_HELP_STRING([--enable-valgrind],
[valgrind support]),
, enable_valgrind=no)
# Enable code coverage reports using gcov
AC_ARG_ENABLE(coverage,
AS_HELP_STRING([--enable-coverage],
[enable code coverage reports using gcov]),
, enable_coverage=no)
# Set the default value for pcre2-8
if test "x$enable_pcre2_8" = "xunset"
then
enable_pcre2_8=yes
fi
# Set the default value for pcre2-16
if test "x$enable_pcre2_16" = "xunset"
then
enable_pcre2_16=no
fi
# Set the default value for pcre2-32
if test "x$enable_pcre2_32" = "xunset"
then
enable_pcre2_32=no
fi
# Make sure at least one library is selected
if test "x$enable_pcre2_8$enable_pcre2_16$enable_pcre2_32" = "xnonono"
then
AC_MSG_ERROR([At least one of the 8, 16 or 32 bit libraries must be enabled])
fi
# Unicode is enabled by default.
if test "x$enable_unicode" = "xunset"
then
enable_unicode=yes
fi
# Convert the newline identifier into the appropriate integer value. These must
# agree with the PCRE2_NEWLINE_xxx values in pcre2.h.
case "$enable_newline" in
cr) ac_pcre2_newline_value=1 ;;
lf) ac_pcre2_newline_value=2 ;;
crlf) ac_pcre2_newline_value=3 ;;
any) ac_pcre2_newline_value=4 ;;
anycrlf) ac_pcre2_newline_value=5 ;;
*)
AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
;;
esac
# --enable-ebcdic-nl25 implies --enable-ebcdic
if test "x$enable_ebcdic_nl25" = "xyes"; then
enable_ebcdic=yes
fi
# Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
# Also check that UTF support is not requested, because PCRE2 cannot handle
# EBCDIC and UTF 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_unicode" = "xyes"; then
AC_MSG_ERROR([support for EBCDIC and Unicode cannot be enabled at the same time])
fi
fi
# 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([
/* PCRE2 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.
In environments that support the GNU autotools, config.h.in is converted into
config.h by the "configure" script. In environments that use CMake,
config-cmake.in is converted into config.h. If you are going to build PCRE2 "by
hand" without using "configure" or CMake, you should copy the distributed
config.h.generic to config.h, and edit the macro definitions to be 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,
but if you do, default values will be taken from config.h for non-boolean
macros that are not defined on the command line.
Boolean macros such as HAVE_STDLIB_H and SUPPORT_PCRE2_8 should either be defined
(conventionally to 1) for TRUE, and not defined at all for FALSE. All such
macros are listed as a commented #undef in config.h.generic. Macros such as
MATCH_LIMIT, whose actual value is relevant, have defaults defined, but are
surrounded by #ifndef/#endif lines so that the value can be overridden by -D.
PCRE2 uses memmove() if HAVE_MEMMOVE is defined; otherwise it uses bcopy() if
HAVE_BCOPY is defined. If your system has neither bcopy() nor memmove(), make
sure both macros are undefined; an emulation function will then be used. */])
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h)
AC_CHECK_HEADERS([windows.h], [HAVE_WINDOWS_H=1])
# Conditional compilation
AM_CONDITIONAL(WITH_PCRE2_8, test "x$enable_pcre2_8" = "xyes")
AM_CONDITIONAL(WITH_PCRE2_16, test "x$enable_pcre2_16" = "xyes")
AM_CONDITIONAL(WITH_PCRE2_32, test "x$enable_pcre2_32" = "xyes")
AM_CONDITIONAL(WITH_DEBUG, test "x$enable_debug" = "xyes")
AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
AM_CONDITIONAL(WITH_UNICODE, test "x$enable_unicode" = "xyes")
AM_CONDITIONAL(WITH_VALGRIND, test "x$enable_valgrind" = "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.
# - PCRE2 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="$OLD_LIBS"
# Check for the availabiity of libreadline
if test "$enable_pcre2test_libreadline" = "yes"; then
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], [LIBREADLINE="-lreadline"],
[unset ac_cv_lib_readline_readline;
AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltinfo"],
[unset ac_cv_lib_readline_readline;
AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lcurses"],
[unset ac_cv_lib_readline_readline;
AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncurses"],
[unset ac_cv_lib_readline_readline;
AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncursesw"],
[unset ac_cv_lib_readline_readline;
AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltermcap"],
[LIBREADLINE=""],
[-ltermcap])],
[-lncursesw])],
[-lncurses])],
[-lcurses])],
[-ltinfo])])
AC_SUBST(LIBREADLINE)
if test -n "$LIBREADLINE"; then
if test "$LIBREADLINE" != "-lreadline"; then
echo "-lreadline needs $LIBREADLINE"
LIBREADLINE="-lreadline $LIBREADLINE"
fi
fi
fi
# Check for the availability of libedit. Different distributions put its
# headers in different places. Try to cover the most common ones.
if test "$enable_pcre2test_libedit" = "yes"; then
AC_CHECK_HEADERS([editline/readline.h], [HAVE_EDITLINE_READLINE_H=1],
[AC_CHECK_HEADERS([edit/readline/readline.h], [HAVE_READLINE_READLINE_H=1],
[AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_READLINE_H=1])])])
AC_CHECK_LIB([edit], [readline], [LIBEDIT="-ledit"])
fi
# This facilitates -ansi builds under Linux
dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
PCRE2_STATIC_CFLAG=""
if test "x$enable_shared" = "xno" ; then
AC_DEFINE([PCRE2_STATIC], [1], [
Define to any value if linking statically (TODO: make nice with Libtool)])
PCRE2_STATIC_CFLAG="-DPCRE2_STATIC"
fi
AC_SUBST(PCRE2_STATIC_CFLAG)
# Here is where PCRE2-specific defines are handled
if test "$enable_pcre2_8" = "yes"; then
AC_DEFINE([SUPPORT_PCRE2_8], [], [
Define to any value to enable the 8 bit PCRE2 library.])
fi
if test "$enable_pcre2_16" = "yes"; then
AC_DEFINE([SUPPORT_PCRE2_16], [], [
Define to any value to enable the 16 bit PCRE2 library.])
fi
if test "$enable_pcre2_32" = "yes"; then
AC_DEFINE([SUPPORT_PCRE2_32], [], [
Define to any value to enable the 32 bit PCRE2 library.])
fi
if test "$enable_debug" = "yes"; then
AC_DEFINE([PCRE2_DEBUG], [], [
Define to any value to include debugging code.])
fi
# Unless running under Windows, JIT support requires pthreads.
if test "$enable_jit" = "yes"; then
if test "$HAVE_WINDOWS_H" != "1"; then
AX_PTHREAD([], [AC_MSG_ERROR([JIT support requires pthreads])])
CC="$PTHREAD_CC"
CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
fi
AC_DEFINE([SUPPORT_JIT], [], [
Define to any value to enable support for Just-In-Time compiling.])
else
enable_pcre2grep_jit="no"
fi
if test "$enable_pcre2grep_jit" = "yes"; then
AC_DEFINE([SUPPORT_PCRE2GREP_JIT], [], [
Define to any value to enable JIT support in pcre2grep.])
fi
if test "$enable_unicode" = "yes"; then
AC_DEFINE([SUPPORT_UNICODE], [], [
Define to any value to enable support for Unicode and UTF encoding.
This will work even in an EBCDIC environment, but it is incompatible
with the EBCDIC macro. That is, PCRE2 can support *either* EBCDIC
code *or* ASCII/Unicode, but not both at once.])
fi
if test "$enable_stack_for_recursion" = "no"; then
AC_DEFINE([HEAP_MATCH_RECURSE], [], [
PCRE2 uses recursive function calls to handle backtracking while
matching. This can sometimes be a problem on systems that have
stacks of limited size. Define HEAP_MATCH_RECURSE to any value to get a
version that doesn't use recursion in the match() function; instead
it creates its own stack by steam using memory from the heap. For more
detail, see the comments and other stuff just above the match() function.])
fi
if test "$enable_pcre2grep_libz" = "yes"; then
AC_DEFINE([SUPPORT_LIBZ], [], [
Define to any value to allow pcre2grep to be linked with libz, so that it is
able to handle .gz files.])
fi
if test "$enable_pcre2grep_libbz2" = "yes"; then
AC_DEFINE([SUPPORT_LIBBZ2], [], [
Define to any value to allow pcre2grep to be linked with libbz2, so that it
is able to handle .bz2 files.])
fi
if test $with_pcre2grep_bufsize -lt 8192 ; then
AC_MSG_WARN([$with_pcre2grep_bufsize is too small for --with-pcre2grep-bufsize; using 8192])
with_pcre2grep_bufsize="8192"
else
if test $? -gt 1 ; then
AC_MSG_ERROR([Bad value for --with-pcre2grep-bufsize])
fi
fi
AC_DEFINE_UNQUOTED([PCRE2GREP_BUFSIZE], [$with_pcre2grep_bufsize], [
The value of PCRE2GREP_BUFSIZE determines the size of buffer used by pcre2grep
to hold parts of the file it is searching. This is also the minimum value.
The actual amount of memory used by pcre2grep is three times this number,
because it allows for the buffering of "before" and "after" lines.])
if test "$enable_pcre2test_libedit" = "yes"; then
AC_DEFINE([SUPPORT_LIBEDIT], [], [
Define to any value to allow pcre2test to be linked with libedit.])
LIBREADLINE="$LIBEDIT"
elif test "$enable_pcre2test_libreadline" = "yes"; then
AC_DEFINE([SUPPORT_LIBREADLINE], [], [
Define to any value to allow pcre2test to be linked with libreadline.])
fi
AC_DEFINE_UNQUOTED([NEWLINE_DEFAULT], [$ac_pcre2_newline_value], [
The value of NEWLINE_DEFAULT determines the default newline character
sequence. PCRE2 client programs can override this by selecting other values
at run time. The valid values are 1 (CR), 2 (LF), 3 (CRLF), 4 (ANY),
and 5 (ANYCRLF).])
if test "$enable_bsr_anycrlf" = "yes"; then
AC_DEFINE([BSR_ANYCRLF], [], [
By default, the \R escape sequence matches any Unicode line ending
character or sequence of characters. If BSR_ANYCRLF is defined (to any
value), this is changed so that backslash-R matches only CR, LF, or CRLF.
The build-time default can be overridden by the user of PCRE2 at runtime.])
fi
AC_DEFINE_UNQUOTED([LINK_SIZE], [$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, PCRE2 can also be compiled to use 3 or 4
bytes instead. This allows for longer patterns in extreme cases.])
AC_DEFINE_UNQUOTED([PARENS_NEST_LIMIT], [$with_parens_nest_limit], [
The value of PARENS_NEST_LIMIT specifies the maximum depth of nested
parentheses (of any kind) in a pattern. This limits the amount of system
stack that is used while compiling a pattern.])
AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$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
pcre2_match(). 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.])
AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
The above limit applies to all calls of match(), whether or not they
increase the recursion depth. In some environments it is desirable
to limit the depth of recursive calls of match() more strictly, in
order to restrict the maximum amount of stack (or heap, if
HEAP_MATCH_RECURSE is defined) that is used. The value of
MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
have any useful effect, it must be less than the value of
MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
There is a runtime method for setting a different limit.])
AC_DEFINE([MAX_NAME_SIZE], [32], [
This limit is parameterized just in case anybody ever wants to
change it. Care must be taken if it is increased, because it guards
against integer overflow caused by enormously large patterns.])
AC_DEFINE([MAX_NAME_COUNT], [10000], [
This limit is parameterized just in case anybody ever wants to
change it. Care must be taken if it is increased, because it guards
against integer overflow caused by enormously large patterns.])
AH_VERBATIM([PCRE2_EXP_DEFN], [
/* If you are compiling for a system other than a Unix-like system or
Win32, and it needs some magic to be inserted before the definition
of a function that is exported by the library, define this macro to
contain the relevant magic. If you do not define this macro, a suitable
__declspec value is used for Windows systems; in other environments
"extern" is used for a C compiler and "extern C" for a C++ compiler.
This macro apears at the start of every exported function that is part
of the external API. It does not appear on functions that are "external"
in the C sense, but which are internal to the library. */
#undef PCRE2_EXP_DEFN])
if test "$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 to any value. When EBCDIC is set, PCRE2
assumes that all input strings are in EBCDIC. If you do not define this
macro, PCRE2 will assume input strings are ASCII or UTF-8/16/32 Unicode. It
is not possible to build a version of PCRE2 that supports both EBCDIC and
UTF-8/16/32.])
fi
if test "$enable_ebcdic_nl25" = "yes"; then
AC_DEFINE_UNQUOTED([EBCDIC_NL25], [], [
In an EBCDIC environment, define this macro to any value to arrange for
the NL character to be 0x25 instead of the default 0x15. NL plays the role
that LF does in an ASCII/Unicode environment.])
fi
if test "$enable_valgrind" = "yes"; then
AC_DEFINE_UNQUOTED([SUPPORT_VALGRIND], [], [
Define to any value for valgrind support to find invalid memory reads.])
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. The libpcre2*_version values
# are m4 variables, assigned above.
EXTRA_LIBPCRE2_8_LDFLAGS="$EXTRA_LIBPCRE2_8_LDFLAGS \
$NO_UNDEFINED -version-info libpcre2_8_version"
EXTRA_LIBPCRE2_16_LDFLAGS="$EXTRA_LIBPCRE2_16_LDFLAGS \
$NO_UNDEFINED -version-info libpcre2_16_version"
EXTRA_LIBPCRE2_32_LDFLAGS="$EXTRA_LIBPCRE2_32_LDFLAGS \
$NO_UNDEFINED -version-info libpcre2_32_version"
EXTRA_LIBPCRE2_POSIX_LDFLAGS="$EXTRA_LIBPCRE2_POSIX_LDFLAGS \
$NO_UNDEFINED -version-info libpcre2_posix_version"
AC_SUBST(EXTRA_LIBPCRE2_8_LDFLAGS)
AC_SUBST(EXTRA_LIBPCRE2_16_LDFLAGS)
AC_SUBST(EXTRA_LIBPCRE2_32_LDFLAGS)
AC_SUBST(EXTRA_LIBPCRE2_POSIX_LDFLAGS)
# When we run 'make distcheck', use these arguments. Turning off compiler
# optimization makes it run faster.
DISTCHECK_CONFIGURE_FLAGS="CFLAGS='' CXXFLAGS='' --enable-pcre2-16 --enable-pcre2-32 --enable-jit --enable-utf"
AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
# Check that, if --enable-pcre2grep-libz or --enable-pcre2grep-libbz2 is
# specified, the relevant library is available.
if test "$enable_pcre2grep_libz" = "yes"; then
if test "$HAVE_ZLIB_H" != "1"; then
echo "** Cannot --enable-pcre2grep-libz because zlib.h was not found"
exit 1
fi
if test "$HAVE_LIBZ" != "1"; then
echo "** Cannot --enable-pcre2grep-libz because libz was not found"
exit 1
fi
LIBZ="-lz"
fi
AC_SUBST(LIBZ)
if test "$enable_pcre2grep_libbz2" = "yes"; then
if test "$HAVE_BZLIB_H" != "1"; then
echo "** Cannot --enable-pcre2grep-libbz2 because bzlib.h was not found"
exit 1
fi
if test "$HAVE_LIBBZ2" != "1"; then
echo "** Cannot --enable-pcre2grep-libbz2 because libbz2 was not found"
exit 1
fi
LIBBZ2="-lbz2"
fi
AC_SUBST(LIBBZ2)
# Similarly for --enable-pcre2test-readline
if test "$enable_pcre2test_libedit" = "yes"; then
if test "$enable_pcre2test_libreadline" = "yes"; then
echo "** Cannot use both --enable-pcre2test-libedit and --enable-pcre2test-readline"
exit 1
fi
if test "$HAVE_EDITLINE_READLINE_H" != "1" -a \
"$HAVE_READLINE_READLINE_H" != "1"; then
echo "** Cannot --enable-pcre2test-libedit because neither editline/readline.h"
echo "** nor readline/readline.h was found."
exit 1
fi
if test -z "$LIBEDIT"; then
echo "** Cannot --enable-pcre2test-libedit because libedit library was not found."
exit 1
fi
fi
if test "$enable_pcre2test_libreadline" = "yes"; then
if test "$HAVE_READLINE_H" != "1"; then
echo "** Cannot --enable-pcre2test-readline because readline/readline.h was not found."
exit 1
fi
if test "$HAVE_HISTORY_H" != "1"; then
echo "** Cannot --enable-pcre2test-readline because readline/history.h was not found."
exit 1
fi
if test -z "$LIBREADLINE"; then
echo "** Cannot --enable-pcre2test-readline because readline library was not found."
exit 1
fi
fi
# Handle valgrind support
if test "$enable_valgrind" = "yes"; then
m4_ifdef([PKG_CHECK_MODULES],
[PKG_CHECK_MODULES([VALGRIND],[valgrind])],
[AC_MSG_ERROR([pkg-config not supported])])
fi
# Handle code coverage reporting support
if test "$enable_coverage" = "yes"; then
if test "x$GCC" != "xyes"; then
AC_MSG_ERROR([Code coverage reports can only be generated when using GCC])
fi
# ccache is incompatible with gcov
AC_PATH_PROG([SHTOOL],[shtool],[false])
case `$SHTOOL path $CC` in
*ccache*) cc_ccache=yes;;
*) cc_ccache=no;;
esac
if test "$cc_ccache" = "yes"; then
if test -z "$CCACHE_DISABLE" -o "$CCACHE_DISABLE" != "1"; then
AC_MSG_ERROR([must export CCACHE_DISABLE=1 to disable ccache for code coverage])
fi
fi
AC_ARG_VAR([LCOV],[the ltp lcov program])
AC_PATH_PROG([LCOV],[lcov],[false])
if test "x$LCOV" = "xfalse"; then
AC_MSG_ERROR([lcov not found])
fi
AC_ARG_VAR([GENHTML],[the ltp genhtml program])
AC_PATH_PROG([GENHTML],[genhtml],[false])
if test "x$GENHTML" = "xfalse"; then
AC_MSG_ERROR([genhtml not found])
fi
# Set flags needed for gcov
GCOV_CFLAGS="-O0 -ggdb3 -fprofile-arcs -ftest-coverage"
GCOV_CXXFLAGS="-O0 -ggdb3 -fprofile-arcs -ftest-coverage"
GCOV_LIBS="-lgcov"
AC_SUBST([GCOV_CFLAGS])
AC_SUBST([GCOV_CXXFLAGS])
AC_SUBST([GCOV_LIBS])
fi # enable_coverage
AM_CONDITIONAL([WITH_GCOV],[test "x$enable_coverage" = "xyes"])
# Produce these files, in addition to config.h.
AC_CONFIG_FILES(
Makefile
libpcre2-8.pc
libpcre2-16.pc
libpcre2-32.pc
libpcre2-posix.pc
pcre2-config
src/pcre2.h
)
# Make the generated script files executable.
AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre2-config])
# Make sure that pcre2_chartables.c is removed in case the method for
# creating it was changed by reconfiguration.
AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre2_chartables.c])
AC_OUTPUT
# Print out a nice little message after configure is run displaying the
# chosen options.
ebcdic_nl_code=n/a
if test "$enable_ebcdic_nl25" = "yes"; then
ebcdic_nl_code=0x25
elif test "$enable_ebcdic" = "yes"; then
ebcdic_nl_code=0x15
fi
cat <<EOF
$PACKAGE-$VERSION configuration summary:
Install prefix .................. : ${prefix}
C preprocessor .................. : ${CPP}
C compiler ...................... : ${CC}
Linker .......................... : ${LD}
C preprocessor flags ............ : ${CPPFLAGS}
C compiler flags ................ : ${CFLAGS} ${VISIBILITY_CFLAGS}
Linker flags .................... : ${LDFLAGS}
Extra libraries ................. : ${LIBS}
Build 8-bit pcre2 library ....... : ${enable_pcre2_8}
Build 16-bit pcre2 library ...... : ${enable_pcre2_16}
Build 32-bit pcre2 library ...... : ${enable_pcre2_32}
Include debugging code .......... : ${enable_debug}
Enable JIT compiling support .... : ${enable_jit}
Enable Unicode support .......... : ${enable_unicode}
Newline char/sequence ........... : ${enable_newline}
\R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
EBCDIC coding ................... : ${enable_ebcdic}
EBCDIC code for NL .............. : ${ebcdic_nl_code}
Rebuild char tables ............. : ${enable_rebuild_chartables}
Use stack recursion ............. : ${enable_stack_for_recursion}
Internal link size .............. : ${with_link_size}
Nested parentheses limit ........ : ${with_parens_nest_limit}
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 pcre2grep ............ : ${enable_pcre2grep_jit}
Buffer size for pcre2grep ....... : ${with_pcre2grep_bufsize}
Link pcre2grep with libz ........ : ${enable_pcre2grep_libz}
Link pcre2grep with libbz2 ...... : ${enable_pcre2grep_libbz2}
Link pcre2test with libedit ..... : ${enable_pcre2test_libedit}
Link pcre2test with libreadline . : ${enable_pcre2test_libreadline}
Valgrind support ................ : ${enable_valgrind}
Code coverage ................... : ${enable_coverage}
EOF
dnl end configure.ac