950 lines
34 KiB
Plaintext
950 lines
34 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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dnl NOTE FOR MAINTAINERS: Do not use minor version numbers 08 or 09 because
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dnl the leading zeros may cause them to be treated as invalid octal constants
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dnl if a PCRE2 user writes code that uses PCRE2_MINOR as a number. There is now
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dnl a check further down that throws an error if 08 or 09 are used.
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dnl The PCRE2_PRERELEASE feature is for identifying release candidates. It might
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dnl be defined as -RC2, for example. For real releases, it should be empty.
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m4_define(pcre2_major, [10])
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m4_define(pcre2_minor, [22])
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m4_define(pcre2_prerelease, [-RC1])
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m4_define(pcre2_date, [2016-01-29])
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# NOTE: The CMakeLists.txt file searches for the above variables in the first
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# 50 lines of this file. Please update that if the variables above are moved.
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# Libtool shared library interface versions (current:revision:age)
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m4_define(libpcre2_8_version, [3:0:3])
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m4_define(libpcre2_16_version, [3:0:3])
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m4_define(libpcre2_32_version, [3:0:3])
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m4_define(libpcre2_posix_version, [0:1:0])
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AC_PREREQ(2.57)
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AC_INIT(PCRE2, pcre2_major.pcre2_minor[]pcre2_prerelease, , pcre2)
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AC_CONFIG_SRCDIR([src/pcre2.h.in])
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AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
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m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
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AC_CONFIG_HEADERS(src/config.h)
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# This is a new thing required to stop a warning from automake 1.12
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m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
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# This was added at the suggestion of libtoolize (03-Jan-10)
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AC_CONFIG_MACRO_DIR([m4])
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# The default CFLAGS in Autoconf are "-g -O2" for gcc and just "-g" for any
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# other compiler. There doesn't seem to be a standard way of getting rid of the
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# -g (which I don't think is needed for a production library). This fudge seems
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# to achieve the necessary. First, we remember the externally set values of
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# CFLAGS. Then call the AC_PROG_CC macro to find the compiler - if CFLAGS is
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# not set, it will be set to Autoconf's defaults. Afterwards, if the original
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# values were not set, remove the -g from the Autoconf defaults.
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remember_set_CFLAGS="$CFLAGS"
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AC_PROG_CC
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AM_PROG_CC_C_O
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if test "x$remember_set_CFLAGS" = "x"
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then
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if test "$CFLAGS" = "-g -O2"
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then
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CFLAGS="-O2"
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elif test "$CFLAGS" = "-g"
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then
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CFLAGS=""
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fi
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fi
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# Check for a 64-bit integer type
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AC_TYPE_INT64_T
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AC_PROG_INSTALL
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AC_LIBTOOL_WIN32_DLL
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LT_INIT
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AC_PROG_LN_S
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# Check for GCC visibility feature
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PCRE2_VISIBILITY
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# Versioning
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PCRE2_MAJOR="pcre2_major"
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PCRE2_MINOR="pcre2_minor"
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PCRE2_PRERELEASE="pcre2_prerelease"
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PCRE2_DATE="pcre2_date"
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if test "$PCRE2_MINOR" = "08" -o "$PCRE2_MINOR" = "09"
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then
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echo "***"
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echo "*** Minor version number $PCRE2_MINOR must not be used. ***"
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echo "*** Use only 00 to 07 or 10 onwards, to avoid octal issues. ***"
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echo "***"
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exit 1
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fi
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AC_SUBST(PCRE2_MAJOR)
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AC_SUBST(PCRE2_MINOR)
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AC_SUBST(PCRE2_PRERELEASE)
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AC_SUBST(PCRE2_DATE)
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# Set a more sensible default value for $(htmldir).
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if test "x$htmldir" = 'x${docdir}'
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then
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htmldir='${docdir}/html'
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fi
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# Force an error for PCRE1 size options
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AC_ARG_ENABLE(pcre8,,,enable_pcre8=no)
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AC_ARG_ENABLE(pcre16,,,enable_pcre16=no)
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AC_ARG_ENABLE(pcre32,,,enable_pcre32=no)
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if test "$enable_pcre8$enable_pcre16$enable_pcre32" != "nonono"
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then
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echo "** ERROR: Use --[[en|dis]]able-pcre2-[[8|16|32]], not --[[en|dis]]able-pcre[[8|16|32]]"
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exit 1
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fi
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# Handle --disable-pcre2-8 (enabled by default)
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AC_ARG_ENABLE(pcre2-8,
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AS_HELP_STRING([--disable-pcre2-8],
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[disable 8 bit character support]),
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, enable_pcre2_8=unset)
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AC_SUBST(enable_pcre2_8)
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# Handle --enable-pcre2-16 (disabled by default)
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AC_ARG_ENABLE(pcre2-16,
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AS_HELP_STRING([--enable-pcre2-16],
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[enable 16 bit character support]),
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, enable_pcre2_16=unset)
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AC_SUBST(enable_pcre2_16)
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# Handle --enable-pcre2-32 (disabled by default)
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AC_ARG_ENABLE(pcre2-32,
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AS_HELP_STRING([--enable-pcre2-32],
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[enable 32 bit character support]),
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, enable_pcre2_32=unset)
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AC_SUBST(enable_pcre2_32)
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# Handle --dnable-debug (disabled by default)
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AC_ARG_ENABLE(debug,
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AS_HELP_STRING([--enable-debug],
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[enable debugging code]),
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, enable_debug=no)
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# Handle --enable-jit (disabled by default)
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AC_ARG_ENABLE(jit,
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AS_HELP_STRING([--enable-jit],
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[enable Just-In-Time compiling support]),
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, enable_jit=no)
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# Handle --disable-pcre2grep-jit (enabled by default)
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AC_ARG_ENABLE(pcre2grep-jit,
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AS_HELP_STRING([--disable-pcre2grep-jit],
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[disable JIT support in pcre2grep]),
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, enable_pcre2grep_jit=yes)
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# Handle --disable-pcre2grep-callout (enabled by default) but not supported
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# for Windows.
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if test "$HAVE_WINDOWS_H" != "1"; then
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AC_ARG_ENABLE(pcre2grep-callout,
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AS_HELP_STRING([--disable-pcre2grep-callout],
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[disable callout script support in pcre2grep]),
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, enable_pcre2grep_callout=yes)
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else
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enable_pcre2grep_callout=no
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fi
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# Handle --enable-rebuild-chartables
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AC_ARG_ENABLE(rebuild-chartables,
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AS_HELP_STRING([--enable-rebuild-chartables],
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[rebuild character tables in current locale]),
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, enable_rebuild_chartables=no)
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# Handle --disable-unicode (enabled by default)
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AC_ARG_ENABLE(unicode,
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AS_HELP_STRING([--disable-unicode],
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[disable Unicode support]),
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, enable_unicode=unset)
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# Handle newline options
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ac_pcre2_newline=lf
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AC_ARG_ENABLE(newline-is-cr,
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AS_HELP_STRING([--enable-newline-is-cr],
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[use CR as newline character]),
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ac_pcre2_newline=cr)
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AC_ARG_ENABLE(newline-is-lf,
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AS_HELP_STRING([--enable-newline-is-lf],
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[use LF as newline character (default)]),
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ac_pcre2_newline=lf)
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AC_ARG_ENABLE(newline-is-crlf,
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AS_HELP_STRING([--enable-newline-is-crlf],
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[use CRLF as newline sequence]),
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ac_pcre2_newline=crlf)
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AC_ARG_ENABLE(newline-is-anycrlf,
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AS_HELP_STRING([--enable-newline-is-anycrlf],
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[use CR, LF, or CRLF as newline sequence]),
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ac_pcre2_newline=anycrlf)
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AC_ARG_ENABLE(newline-is-any,
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AS_HELP_STRING([--enable-newline-is-any],
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[use any valid Unicode newline sequence]),
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ac_pcre2_newline=any)
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enable_newline="$ac_pcre2_newline"
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# Handle --enable-bsr-anycrlf
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AC_ARG_ENABLE(bsr-anycrlf,
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AS_HELP_STRING([--enable-bsr-anycrlf],
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[\R matches only CR, LF, CRLF by default]),
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, enable_bsr_anycrlf=no)
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# Handle --enable-never-backslash-C
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AC_ARG_ENABLE(never-backslash-C,
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AS_HELP_STRING([--enable-never-backslash-C],
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[use of \C causes an error]),
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, enable_never_backslash_C=no)
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# Handle --enable-ebcdic
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AC_ARG_ENABLE(ebcdic,
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AS_HELP_STRING([--enable-ebcdic],
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[assume EBCDIC coding rather than ASCII; incompatible with --enable-utf; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
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, enable_ebcdic=no)
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# Handle --enable-ebcdic-nl25
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AC_ARG_ENABLE(ebcdic-nl25,
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AS_HELP_STRING([--enable-ebcdic-nl25],
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[set EBCDIC code for NL to 0x25 instead of 0x15; it implies --enable-ebcdic]),
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, enable_ebcdic_nl25=no)
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# Handle --disable-stack-for-recursion
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AC_ARG_ENABLE(stack-for-recursion,
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AS_HELP_STRING([--disable-stack-for-recursion],
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[don't use stack recursion when matching]),
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, enable_stack_for_recursion=yes)
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# Handle --enable-pcre2grep-libz
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AC_ARG_ENABLE(pcre2grep-libz,
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AS_HELP_STRING([--enable-pcre2grep-libz],
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[link pcre2grep with libz to handle .gz files]),
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, enable_pcre2grep_libz=no)
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# Handle --enable-pcre2grep-libbz2
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AC_ARG_ENABLE(pcre2grep-libbz2,
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AS_HELP_STRING([--enable-pcre2grep-libbz2],
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[link pcre2grep with libbz2 to handle .bz2 files]),
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, enable_pcre2grep_libbz2=no)
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# Handle --with-pcre2grep-bufsize=N
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AC_ARG_WITH(pcre2grep-bufsize,
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AS_HELP_STRING([--with-pcre2grep-bufsize=N],
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[pcre2grep buffer size (default=20480, minimum=8192)]),
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, with_pcre2grep_bufsize=20480)
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# Handle --enable-pcre2test-libedit
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AC_ARG_ENABLE(pcre2test-libedit,
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AS_HELP_STRING([--enable-pcre2test-libedit],
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[link pcre2test with libedit]),
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, enable_pcre2test_libedit=no)
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# Handle --enable-pcre2test-libreadline
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AC_ARG_ENABLE(pcre2test-libreadline,
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AS_HELP_STRING([--enable-pcre2test-libreadline],
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[link pcre2test with libreadline]),
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, enable_pcre2test_libreadline=no)
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# Handle --with-link-size=N
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AC_ARG_WITH(link-size,
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AS_HELP_STRING([--with-link-size=N],
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[internal link size (2, 3, or 4 allowed; default=2)]),
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, with_link_size=2)
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# Handle --with-parens-nest-limit=N
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AC_ARG_WITH(parens-nest-limit,
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AS_HELP_STRING([--with-parens-nest-limit=N],
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[nested parentheses limit (default=250)]),
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, with_parens_nest_limit=250)
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# Handle --with-match-limit=N
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AC_ARG_WITH(match-limit,
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AS_HELP_STRING([--with-match-limit=N],
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[default limit on internal looping (default=10000000)]),
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, with_match_limit=10000000)
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# Handle --with-match-limit_recursion=N
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#
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# Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
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# symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
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# value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
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# different numeric value (or even the same numeric value as MATCH_LIMIT,
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# though no longer defined in terms of the latter).
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#
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AC_ARG_WITH(match-limit-recursion,
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AS_HELP_STRING([--with-match-limit-recursion=N],
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[default limit on internal recursion (default=MATCH_LIMIT)]),
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, with_match_limit_recursion=MATCH_LIMIT)
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# Handle --enable-valgrind
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AC_ARG_ENABLE(valgrind,
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AS_HELP_STRING([--enable-valgrind],
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[valgrind support]),
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, enable_valgrind=no)
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# Enable code coverage reports using gcov
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AC_ARG_ENABLE(coverage,
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AS_HELP_STRING([--enable-coverage],
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[enable code coverage reports using gcov]),
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, enable_coverage=no)
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# Set the default value for pcre2-8
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if test "x$enable_pcre2_8" = "xunset"
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then
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enable_pcre2_8=yes
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fi
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# Set the default value for pcre2-16
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if test "x$enable_pcre2_16" = "xunset"
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then
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enable_pcre2_16=no
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fi
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# Set the default value for pcre2-32
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if test "x$enable_pcre2_32" = "xunset"
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then
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enable_pcre2_32=no
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fi
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# Make sure at least one library is selected
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if test "x$enable_pcre2_8$enable_pcre2_16$enable_pcre2_32" = "xnonono"
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then
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AC_MSG_ERROR([At least one of the 8, 16 or 32 bit libraries must be enabled])
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fi
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# Unicode is enabled by default.
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if test "x$enable_unicode" = "xunset"
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then
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enable_unicode=yes
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fi
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# Convert the newline identifier into the appropriate integer value. These must
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# agree with the PCRE2_NEWLINE_xxx values in pcre2.h.
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case "$enable_newline" in
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cr) ac_pcre2_newline_value=1 ;;
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lf) ac_pcre2_newline_value=2 ;;
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crlf) ac_pcre2_newline_value=3 ;;
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any) ac_pcre2_newline_value=4 ;;
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anycrlf) ac_pcre2_newline_value=5 ;;
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*)
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AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
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;;
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esac
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# --enable-ebcdic-nl25 implies --enable-ebcdic
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if test "x$enable_ebcdic_nl25" = "xyes"; then
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enable_ebcdic=yes
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fi
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# Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
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# Also check that UTF support is not requested, because PCRE2 cannot handle
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# EBCDIC and UTF in the same build. To do so it would need to use different
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# character constants depending on the mode. Also, EBCDIC cannot be used with
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# 16-bit and 32-bit libraries.
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#
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if test "x$enable_ebcdic" = "xyes"; then
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enable_rebuild_chartables=yes
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if test "x$enable_unicode" = "xyes"; then
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AC_MSG_ERROR([support for EBCDIC and Unicode cannot be enabled at the same time])
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fi
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if test "x$enable_pcre2_16" = "xyes" -o "x$enable_pcre2_32" = "xyes"; then
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AC_MSG_ERROR([EBCDIC support is available only for the 8-bit library])
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fi
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fi
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# Check argument to --with-link-size
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case "$with_link_size" in
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2|3|4) ;;
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*)
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AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option])
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;;
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esac
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AH_TOP([
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/* PCRE2 is written in Standard C, but there are a few non-standard things it
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can cope with, allowing it to run on SunOS4 and other "close to standard"
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systems.
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In environments that support the GNU autotools, config.h.in is converted into
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config.h by the "configure" script. In environments that use CMake,
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config-cmake.in is converted into config.h. If you are going to build PCRE2 "by
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hand" without using "configure" or CMake, you should copy the distributed
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config.h.generic to config.h, and edit the macro definitions to be the way you
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need them. You must then add -DHAVE_CONFIG_H to all of your compile commands,
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so that config.h is included at the start of every source.
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Alternatively, you can avoid editing by using -D on the compiler command line
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to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H,
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but if you do, default values will be taken from config.h for non-boolean
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macros that are not defined on the command line.
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Boolean macros such as HAVE_STDLIB_H and SUPPORT_PCRE2_8 should either be defined
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(conventionally to 1) for TRUE, and not defined at all for FALSE. All such
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macros are listed as a commented #undef in config.h.generic. Macros such as
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MATCH_LIMIT, whose actual value is relevant, have defaults defined, but are
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surrounded by #ifndef/#endif lines so that the value can be overridden by -D.
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PCRE2 uses memmove() if HAVE_MEMMOVE is defined; otherwise it uses bcopy() if
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HAVE_BCOPY is defined. If your system has neither bcopy() nor memmove(), make
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sure both macros are undefined; an emulation function will then be used. */])
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# Checks for header files.
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AC_HEADER_STDC
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AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h)
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AC_CHECK_HEADERS([windows.h], [HAVE_WINDOWS_H=1])
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AC_CHECK_HEADERS([sys/wait.h], [HAVE_SYS_WAIT_H=1])
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# Conditional compilation
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AM_CONDITIONAL(WITH_PCRE2_8, test "x$enable_pcre2_8" = "xyes")
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AM_CONDITIONAL(WITH_PCRE2_16, test "x$enable_pcre2_16" = "xyes")
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AM_CONDITIONAL(WITH_PCRE2_32, test "x$enable_pcre2_32" = "xyes")
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AM_CONDITIONAL(WITH_DEBUG, test "x$enable_debug" = "xyes")
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AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
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AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
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AM_CONDITIONAL(WITH_UNICODE, test "x$enable_unicode" = "xyes")
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AM_CONDITIONAL(WITH_VALGRIND, test "x$enable_valgrind" = "xyes")
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# Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_SIZE_T
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# Checks for library functions.
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AC_CHECK_FUNCS(bcopy memmove strerror)
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# Check for the availability of libz (aka zlib)
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AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
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AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
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# Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
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# as for libz. However, this had the following problem, diagnosed and fixed by
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# a user:
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#
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# - libbz2 uses the Pascal calling convention (WINAPI) for the functions
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# under Win32.
|
|
# - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
|
|
# therefore missing the function definition.
|
|
# - The compiler thus generates a "C" signature for the test function.
|
|
# - The linker fails to find the "C" function.
|
|
# - PCRE2 fails to configure if asked to do so against libbz2.
|
|
#
|
|
# Solution:
|
|
#
|
|
# - Replace the AC_CHECK_LIB test with a custom test.
|
|
|
|
AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
|
|
# Original test
|
|
# AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
|
|
#
|
|
# Custom test follows
|
|
|
|
AC_MSG_CHECKING([for libbz2])
|
|
OLD_LIBS="$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
|
|
|
|
# Currently pcre2grep callout string is not supported under Windows.
|
|
|
|
if test "$enable_pcre2grep_callout" = "yes"; then
|
|
if test "$HAVE_WINDOWS_H" != "1"; then
|
|
if test "$HAVE_SYS_WAIT_H" != "1"; then
|
|
AC_MSG_ERROR([Callout script support needs sys/wait.h.])
|
|
fi
|
|
AC_DEFINE([SUPPORT_PCRE2GREP_CALLOUT], [], [
|
|
Define to any value to enable callout script support in pcre2grep.])
|
|
else
|
|
AC_MSG_WARN([Callout script support is not available for Windows: disabled])
|
|
enable_pcre2grep_callout=no
|
|
fi
|
|
fi
|
|
|
|
if test "$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 "$enable_bsr_anycrlf" = "yes"; then
|
|
AC_DEFINE([BSR_ANYCRLF], [], [
|
|
By default, the \R escape sequence matches any Unicode line ending
|
|
character or sequence of characters. If BSR_ANYCRLF is defined (to any
|
|
value), this is changed so that backslash-R matches only CR, LF, or CRLF.
|
|
The build-time default can be overridden by the user of PCRE2 at runtime.])
|
|
fi
|
|
|
|
if test "$enable_never_backslash_C" = "yes"; then
|
|
AC_DEFINE([NEVER_BACKSLASH_C], [], [
|
|
Defining NEVER_BACKSLASH_C locks out the use of \C in all patterns.])
|
|
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}
|
|
\C is disabled .................. : ${enable_never_backslash_C}
|
|
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}
|
|
Enable callouts in pcre2grep .... : ${enable_pcre2grep_callout}
|
|
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
|