36af74cb25
Some manual changes done to the library were lost with this update. They will be added in the next commit.
974 lines
36 KiB
Plaintext
974 lines
36 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, [23])
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m4_define(pcre2_prerelease, [])
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m4_define(pcre2_date, [2017-02-14])
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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, [5:0:5])
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m4_define(libpcre2_16_version, [5:0:5])
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m4_define(libpcre2_32_version, [5:0:5])
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m4_define(libpcre2_posix_version, [1:1:0])
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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 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="$CFLAGS"
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_USE_SYSTEM_EXTENSIONS
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if test "x$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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# 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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# 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)
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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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# 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 initial buffer size (default=20480, minimum=8192)]),
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, with_pcre2grep_bufsize=20480)
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# Handle --with-pcre2grep-max-bufsize=N
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AC_ARG_WITH(pcre2grep-max-bufsize,
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AS_HELP_STRING([--with-pcre2grep-max-bufsize=N],
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[pcre2grep maximum buffer size (default=1048576, minimum=8192)]),
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, with_pcre2grep_max_bufsize=1048576)
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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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[enable 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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# Handle --enable-fuzz-support
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AC_ARG_ENABLE(fuzz_support,
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AS_HELP_STRING([--enable-fuzz-support],
|
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[enable fuzzer support]),
|
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, enable_fuzz_support=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
|
|
# 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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|
#
|
|
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
|
|
if test "x$enable_pcre2_16" = "xyes" -o "x$enable_pcre2_32" = "xyes"; then
|
|
AC_MSG_ERROR([EBCDIC support is available only for the 8-bit library])
|
|
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
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|
|
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.
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|
|
|
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. */])
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|
|
# 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])
|
|
AC_CHECK_HEADERS([sys/wait.h], [HAVE_SYS_WAIT_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")
|
|
AM_CONDITIONAL(WITH_FUZZ_SUPPORT, test "x$enable_fuzz_support" = "xyes")
|
|
|
|
if test "$enable_fuzz_support" = "yes" -a "$enable_pcre2_8" = "no"; then
|
|
echo "** ERROR: Fuzzer support requires the 8-bit library"
|
|
exit 1
|
|
fi
|
|
|
|
# Checks for typedefs, structures, and compiler characteristics.
|
|
|
|
AC_C_CONST
|
|
AC_TYPE_SIZE_T
|
|
|
|
# Checks for library functions.
|
|
|
|
AC_CHECK_FUNCS(bcopy memmove strerror mkostemp secure_getenv)
|
|
|
|
# Check for the availability of libz (aka zlib)
|
|
|
|
AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
|
|
AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
|
|
|
|
# Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
|
|
# as for libz. However, this had the following problem, diagnosed and fixed by
|
|
# a user:
|
|
#
|
|
# - libbz2 uses the Pascal calling convention (WINAPI) for the functions
|
|
# under Win32.
|
|
# - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
|
|
# therefore missing the function definition.
|
|
# - The compiler thus generates a "C" signature for the test function.
|
|
# - The linker fails to find the "C" function.
|
|
# - PCRE2 fails to configure if asked to do so against libbz2.
|
|
#
|
|
# Solution:
|
|
#
|
|
# - Replace the AC_CHECK_LIB test with a custom test.
|
|
|
|
AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
|
|
# Original test
|
|
# AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
|
|
#
|
|
# Custom test follows
|
|
|
|
AC_MSG_CHECKING([for libbz2])
|
|
OLD_LIBS="$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
|
|
|
|
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. Note that this will
|
|
have no effect unless SUPPORT_JIT is also defined.])
|
|
fi
|
|
|
|
if test "$enable_pcre2grep_callout" = "yes"; then
|
|
if test "$HAVE_WINDOWS_H" != "1"; then
|
|
if test "$HAVE_SYS_WAIT_H" != "1"; then
|
|
AC_MSG_ERROR([Callout script support needs sys/wait.h.])
|
|
fi
|
|
fi
|
|
AC_DEFINE([SUPPORT_PCRE2GREP_CALLOUT], [], [
|
|
Define to any value to enable callout script support in pcre2grep.])
|
|
fi
|
|
|
|
if test "$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
|
|
|
|
if test $with_pcre2grep_max_bufsize -lt $with_pcre2grep_bufsize ; then
|
|
with_pcre2grep_max_bufsize="$with_pcre2grep_bufsize"
|
|
else
|
|
if test $? -gt 1 ; then
|
|
AC_MSG_ERROR([Bad value for --with-pcre2grep-max-bufsize])
|
|
fi
|
|
fi
|
|
|
|
AC_DEFINE_UNQUOTED([PCRE2GREP_BUFSIZE], [$with_pcre2grep_bufsize], [
|
|
The value of PCRE2GREP_BUFSIZE is the starting size of the buffer used by
|
|
pcre2grep to hold parts of the file it is searching. The buffer will be
|
|
expanded up to PCRE2GREP_MAX_BUFSIZE if necessary, for files containing very
|
|
long lines. The actual amount of memory used by pcre2grep is three times this
|
|
number, because it allows for the buffering of "before" and "after" lines.])
|
|
|
|
AC_DEFINE_UNQUOTED([PCRE2GREP_MAX_BUFSIZE], [$with_pcre2grep_max_bufsize], [
|
|
The value of PCRE2GREP_MAX_BUFSIZE specifies the maximum size of the buffer
|
|
used by pcre2grep to hold parts of the file it is searching. The actual
|
|
amount of memory used by pcre2grep is three times this number, because it
|
|
allows for the buffering of "before" and "after" lines.])
|
|
|
|
if test "$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}
|
|
Initial buffer size for pcre2grep .. : ${with_pcre2grep_bufsize}
|
|
Maximum buffer size for pcre2grep .. : ${with_pcre2grep_max_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}
|
|
Fuzzer support ..................... : ${enable_fuzz_support}
|
|
|
|
EOF
|
|
|
|
dnl end configure.ac
|