426 lines
11 KiB
Plaintext
426 lines
11 KiB
Plaintext
dnl $Id$
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dnl Copyright (c) 1996-2002, Darren Hiebert
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dnl
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dnl This source code is released for free distribution under the terms
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dnl of the GNU General Public License.
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dnl Process this file with autoconf to produce a configure script.
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AC_PREREQ(1.12)
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AC_INIT(ctags.h)
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AC_CONFIG_HEADER(config.h)
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dnl Report system info
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dnl ------------------
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program_name=[`grep 'PROGRAM_NAME *"' ctags.h | sed -e 's/.*"\([^"]*\)".*/\1/'`]
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program_version=[`grep 'PROGRAM_VERSION *"' ctags.h | sed -e 's/.*"\([^"]*\)".*/\1/'`]
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echo "$program_name, version $program_version"
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uname -mrsv 2>/dev/null
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dnl Define convenience macros
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dnl -------------------------
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dnl CHECK_HEADER_DEFINE(LABEL, HEADER [,ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ] ])
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AC_DEFUN(CHECK_HEADER_DEFINE,
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[
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AC_MSG_CHECKING(if $1 is defined in $2)
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AC_EGREP_CPP(yes,
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[#include <$2>
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#ifdef $1
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yes
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#endif
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], [
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AC_MSG_RESULT(yes)
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$3
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], [
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AC_MSG_RESULT(no)
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$4
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]) ])
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dnl Checks for configuration options
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dnl --------------------------------
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AC_ARG_WITH(posix-regex,
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[ --with-posix-regex use Posix regex interface, if available])
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AC_ARG_WITH(readlib,
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[ --with-readlib include readtags library object during install])
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dnl AC_ARG_WITH(perl-regex,
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dnl [ --with-perl-regex use Perl pcre interface, if available])
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AC_ARG_ENABLE(etags,
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[ --enable-etags enable the installation of links for etags])
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AC_ARG_ENABLE(extended-format,
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[ --disable-extended-format
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disable extension flags; use original ctags file
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format only],
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AC_DEFINE(DEFAULT_FILE_FORMAT, 1), AC_DEFINE(DEFAULT_FILE_FORMAT, 2))
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AC_ARG_ENABLE(external-sort,
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[ --disable-external-sort use internal sort algorithm instead of sort program])
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AC_ARG_ENABLE(custom-config,
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[ --enable-custom-config=FILE
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enable custom config file for site-wide defaults])
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AC_ARG_ENABLE(macro-patterns,
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[ --enable-macro-patterns use patterns as default method to locate macros
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instead of line numbers])
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AC_ARG_ENABLE(maintainer-mode,
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[ --enable-maintainer-mode
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use maintainer makefile])
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AC_ARG_ENABLE(shell-globbing,
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[ --enable-shell-globbing=DIR
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does shell expand wildcards (yes|no)? [yes]])
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AC_ARG_ENABLE(tmpdir,
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[ --enable-tmpdir=DIR default directory for temporary files [ARG=/tmp]],
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tmpdir_specified=yes)
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dnl Process configuration options
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dnl -----------------------------
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if test "$enable_maintainer_mode" = yes ; then
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AC_MSG_RESULT(enabling maintainer mode)
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fi
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install_targets="install-ctags"
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AC_MSG_CHECKING(whether to install link to etags)
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if test yes = "$enable_etags"; then
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AC_MSG_RESULT(yes)
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install_targets="$install_targets install-etags"
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else
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AC_MSG_RESULT(no)
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fi
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AC_MSG_CHECKING(whether to install readtags object file)
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if test yes = "$with_readlib"; then
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AC_MSG_RESULT(yes)
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install_targets="$install_targets install-lib"
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else
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AC_MSG_RESULT(no)
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fi
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AC_SUBST(install_targets)
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if test "$enable_custom_config" = no -o "$enable_custom_config" = yes ; then
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AC_MSG_RESULT(no name supplied for custom configuration file)
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elif test -n "$enable_custom_config" ; then
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AC_DEFINE_UNQUOTED(CUSTOM_CONFIGURATION_FILE, "$enable_custom_config")
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AC_MSG_RESULT($enable_custom_config will be used as custom configuration file)
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fi
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if test "$enable_macro_patterns" = yes ; then
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AC_DEFINE(MACROS_USE_PATTERNS)
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AC_MSG_RESULT(tag file will use patterns for macros by default)
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fi
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dnl Checks for programs
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dnl -------------------
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AC_PROG_CC
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case `uname` in
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HP-UX)
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AC_MSG_CHECKING(HP-UX native compiler)
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if test "$CC" = "cc"; then
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AC_MSG_RESULT(yes; adding compiler options for ANSI support)
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CFLAGS="$CFLAGS -Aa -D_HPUX_SOURCE"
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else
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AC_MSG_RESULT(no)
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fi
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;;
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SunOS)
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if uname -r | grep '5\.' >/dev/null 2>&1; then
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AC_MSG_CHECKING(Solaris native compiler)
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if test "$CC" = "cc" -a "`which cc`" = "/usr/ucb/cc"; then
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AC_MSG_RESULT(yes; adding compiler option for ANSI support)
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CC="$CC -Xa"
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else
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AC_MSG_RESULT(no)
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fi
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fi
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;;
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esac
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AC_PROG_LN_S
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AC_CHECK_PROG(STRIP, strip, strip, :)
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dnl Checks for operating environment
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dnl --------------------------------
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dnl Check for temporary directory
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AC_MSG_CHECKING(directory to use for temporary files)
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if test -n "$enable_tmpdir"; then
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tmpdir="$enable_tmpdir"
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elif test -n "$TMPDIR"; then
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tmpdir="$TMPDIR"
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elif test -n "$TMPDIR"; then
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tmpdir="$TMPDIR"
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elif test -n "$TMP"; then
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tmpdir="$TMP"
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elif test -n "$TEMP"; then
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tmpdir="$TEMP"
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elif test -d "c:/"; then
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tmpdir="c:/"
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else
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tmpdir="/tmp"
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fi
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if test -d $tmpdir ; then
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AC_MSG_RESULT($tmpdir)
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AC_DEFINE_UNQUOTED(TMPDIR, "$tmpdir")
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else
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AC_MSG_ERROR($tmpdir does not exist)
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fi
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dnl Check whether system supports #! scripts
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AC_SYS_INTERPRETER
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if test yes = "$interpval"; then
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AC_DEFINE(SYS_INTERPRETER)
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fi
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dnl Test for case-insensitive filenames
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AC_MSG_CHECKING(for case-insensitive filenames)
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touch conftest.cif
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if test -f CONFTEST.CIF; then
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AC_MSG_RESULT(yes)
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AC_DEFINE(CASE_INSENSITIVE_FILENAMES)
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else
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AC_MSG_RESULT(no)
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fi
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rm -f conftest.cif
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AC_MSG_CHECKING(selected sort method)
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if test no = "$enable_external_sort"; then
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AC_MSG_RESULT(simple internal algorithm)
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else
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AC_MSG_RESULT(external sort utility)
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enable_external_sort=no
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AC_CHECK_PROG(sort_found, sort, yes, no)
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if test "$sort_found" = yes ; then
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AC_MSG_CHECKING(if sort accepts our command line)
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touch ${tmpdir}/sort.test
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sort -u -f -o ${tmpdir}/sort.test ${tmpdir}/sort.test 1>/dev/null 2>&1
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if test $? -ne 0 ; then
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AC_MSG_RESULT(no)
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else
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AC_MSG_RESULT(yes)
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AC_DEFINE(EXTERNAL_SORT)
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enable_external_sort=yes
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fi
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rm -f ${tmpdir}/sort.test
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fi
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fi
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if test "$enable_external_sort" != yes ; then
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AC_MSG_RESULT(using internal sort algorithm as fallback)
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fi
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dnl Checks for header files
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dnl -----------------------
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AC_CHECK_HEADERS(dirent.h fcntl.h fnmatch.h stat.h stdlib.h string.h)
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AC_CHECK_HEADERS(time.h types.h unistd.h)
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AC_CHECK_HEADERS(sys/dir.h sys/stat.h sys/times.h sys/types.h)
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dnl Checks for header file macros
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dnl -----------------------------
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CHECK_HEADER_DEFINE(L_tmpnam, stdio.h,, AC_DEFINE(L_tmpnam, 20))
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CHECK_HEADER_DEFINE(INT_MAX, limits.h,,
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CHECK_HEADER_DEFINE(MAXINT, limits.h,
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AC_DEFINE(INT_MAX, MAXINT), AC_DEFINE(INT_MAX, 32767)))
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dnl Checks for typedefs
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dnl -------------------
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AC_TYPE_SIZE_T
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AC_TYPE_OFF_T
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AC_MSG_CHECKING(for fpos_t)
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AC_EGREP_HEADER(fpos_t, stdio.h, AC_MSG_RESULT(yes),
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[
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AC_MSG_RESULT(no)
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AC_DEFINE(fpos_t, long)
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])
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AC_MSG_CHECKING(for clock_t)
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AC_EGREP_HEADER(clock_t, time.h, AC_MSG_RESULT(yes),
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[
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AC_MSG_RESULT(no)
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AC_DEFINE(clock_t, long)
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])
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dnl Checks for compiler characteristics
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dnl -----------------------------------
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dnl AC_CYGWIN
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dnl AC_MINGW32
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AC_C_CONST
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AC_OBJEXT
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AC_EXEEXT
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AC_MSG_CHECKING(if struct stat contains st_ino)
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AC_TRY_COMPILE([#include <sys/stat.h>], [
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struct stat st;
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stat(".", &st);
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if (st.st_ino > 0)
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exit(0);
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], have_st_ino=yes, have_st_ino=no)
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AC_MSG_RESULT($have_st_ino)
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if test yes = "$have_st_ino"; then
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AC_DEFINE(HAVE_STAT_ST_INO)
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fi
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dnl Checks for library functions
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dnl ----------------------------
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AC_CHECK_FUNCS(fnmatch)
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AC_CHECK_FUNCS(strstr)
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AC_CHECK_FUNCS(strcasecmp stricmp, break)
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AC_CHECK_FUNCS(strncasecmp strnicmp, break)
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AC_CHECK_FUNCS(fgetpos, have_fgetpos=yes)
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dnl SEEK_SET should be in stdio.h, but may be in unistd.h on SunOS 4.1.x
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if test "$have_fgetpos" != yes ; then
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CHECK_HEADER_DEFINE(SEEK_SET, stdio.h,,
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CHECK_HEADER_DEFINE(SEEK_SET, unistd.h,,
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AC_DEFINE(SEEK_SET, 0)))
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fi
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AC_CHECK_FUNCS(mkstemp, have_mkstemp=yes)
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if test "$have_mkstemp" != yes ; then
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AC_CHECK_FUNCS(tempnam, have_tempnam=yes)
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fi
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if test "$have_mkstemp" != yes -a "$have_tempnam" != yes; then
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AC_CHECK_FUNCS(chmod)
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if test "$tmpdir_specified" = yes ; then
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AC_MSG_RESULT(use of tmpnam overrides temporary directory selection)
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fi
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fi
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AC_CHECK_FUNCS(opendir findfirst _findfirst, break)
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AC_CHECK_FUNCS(strerror)
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AC_CHECK_FUNCS(clock times, break)
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AC_CHECK_FUNCS(remove, have_remove=yes,
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CHECK_HEADER_DEFINE(remove, unistd.h,, AC_DEFINE(remove, unlink)))
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AC_CHECK_FUNCS(truncate, have_truncate=yes)
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dnl === Cannot nest AC_CHECK_FUNCS() calls
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if test "$have_truncate" != yes ; then
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AC_CHECK_FUNCS(ftruncate, have_ftruncate=yes)
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if test "$have_ftruncate" != yes ; then
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AC_CHECK_FUNCS(chsize)
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fi
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fi
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AC_CHECK_FUNCS(setenv, have_setenv=yes)
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dnl === Cannot nest AC_CHECK_FUNCS() calls
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if test "$have_setenv" != yes ; then
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AC_CHECK_FUNCS(putenv, have_putenv=yes)
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if test "$have_putenv" = yes ; then
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AC_EGREP_HEADER(putenv, stdlib.h, have_putenv_prototype=yes)
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if test "$have_putenv_prototype" = yes ; then
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AC_MSG_CHECKING(putenv prototype)
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AC_EGREP_HEADER([[^A-Za-zo-9_]putenv[ ]*\(.*const.*\)[ ]*;],
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stdlib.h, AC_MSG_RESULT(correct),
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[
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AC_MSG_RESULT(no const)
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AC_DEFINE(NON_CONST_PUTENV_PROTOTYPE)
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])
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fi
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fi
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fi
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dnl
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dnl if test yes = "$CYGWIN"; then with_posix_regex=no; fi
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if test no != "$with_posix_regex"; then
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AC_CHECK_FUNCS(regcomp)
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AC_MSG_CHECKING(if regcomp works)
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AC_TRY_RUN([
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#include <sys/types.h>
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#include <regex.h>
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main() {
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regex_t patbuf;
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exit (regcomp (&patbuf, "/hello/", 0) != 0);
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}],regcomp_works=yes,regcomp_works=no,AC_DEFINE(CHECK_REGCOMP))
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AC_MSG_RESULT($regcomp_works)
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if test yes != "$regcomp_works"; then
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AC_DEFINE(REGCOMP_BROKEN)
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fi
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fi
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dnl if test yes = "$with_perl_regex"; then
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dnl AC_MSG_CHECKING(for Perl regex library)
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dnl pcre_candidates="$with_perl_regex $HOME/local/lib* /usr*/local/lib* /usr/lib*"
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dnl for lib in $pcre_candidates; do
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dnl if test -f $lib/libpcreposix.so; then
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dnl pcre_lib="-L$lib -lpcreposix"
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dnl break
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dnl elif test -f $lib/libpcreposix.a; then
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dnl pcre_lib="$lib/libpcreposix.a"
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dnl break
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dnl fi
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dnl done
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dnl if test -z "$pcre_lib"; then
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dnl AC_MSG_RESULT(not found)
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dnl else
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dnl AC_MSG_RESULT($lib)
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dnl AC_DEFINE(HAVE_REGCOMP)
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dnl LDFLAGS="$LDFLAGS $pcre_lib"
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dnl have_regex=yes
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dnl fi
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dnl fi
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dnl Checks for missing prototypes
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dnl -----------------------------
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AC_CHECKING(for missing prototypes)
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AC_DEFUN(CHECK_PROTO, [AC_EGREP_HEADER([[^A-Za-z0-9_]$1([ ]+[A-Za-z0-9_]*)?\(], $2,, AC_DEFINE(patsubst([NEED_PROTO_NAME], [NAME], translit($1, [a-z], [A-Z]))) AC_MSG_RESULT(adding prototype for $1))])
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if test "$have_remove" = yes ; then
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CHECK_PROTO(remove, stdio.h)
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else
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CHECK_PROTO(unlink, unistd.h)
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fi
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CHECK_PROTO(malloc, stdlib.h)
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CHECK_PROTO(getenv, stdlib.h)
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CHECK_PROTO(stat, sys/stat.h)
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CHECK_PROTO(lstat, sys/stat.h)
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if test "$have_fgetpos" = yes ; then
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CHECK_PROTO(fgetpos, stdio.h)
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fi
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if test "$have_truncate" = yes ; then
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CHECK_PROTO(truncate, unistd.h)
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fi
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if test "$have_ftruncate" = yes ; then
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CHECK_PROTO(ftruncate, unistd.h)
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fi
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dnl Output files
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dnl ------------
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rm -f Makefile
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if test "$enable_maintainer_mode" = yes ; then
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AC_MSG_RESULT(creating maintainer Makefile)
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ln -s maintainer.mak Makefile
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makefile_out=
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else
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makefile_out=Makefile
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fi
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AC_OUTPUT($makefile_out)
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dnl vim:ts=4:sw=4:
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