Doc fix

[bpt/guile.git] / aclocal.m4

dnl aclocal.m4 generated automatically by aclocal 1.1n

dnl  On the NeXT, #including <utime.h> doesn't give you a definition for
dnl  struct utime, unless you #define _POSIX_SOURCE.

AC_DEFUN(GUILE_STRUCT_UTIMBUF, [
  AC_CACHE_CHECK([whether we need POSIX to get struct utimbuf],
    guile_cv_struct_utimbuf_needs_posix,
    [AC_TRY_CPP([
#ifdef __EMX__
#include <sys/utime.h>
#else
#include <utime.h>
#endif
struct utime blah;
],
                guile_cv_struct_utimbuf_needs_posix=no,
		guile_cv_struct_utimbuf_needs_posix=yes)])
  if test "$guile_cv_struct_utimbuf_needs_posix" = yes; then
     AC_DEFINE(UTIMBUF_NEEDS_POSIX)
  fi])




dnl
dnl Apparently, at CMU they have a weird version of libc.h that is
dnl installed in /usr/local/include and conflicts with unistd.h.
dnl In these situations, we should not #include libc.h.
dnl This test arranges to #define LIBC_H_WITH_UNISTD_H iff libc.h is
dnl present on the system, and is safe to #include.
dnl
AC_DEFUN([GUILE_HEADER_LIBC_WITH_UNISTD],
  [
    AC_CHECK_HEADERS(libc.h unistd.h)
    AC_CACHE_CHECK(
      "whether libc.h and unistd.h can be included together",
      guile_cv_header_libc_with_unistd,
      [
        if test "$ac_cv_header_libc_h" = "no"; then
          guile_cv_header_libc_with_unistd="no"
        elif test "$ac_cv_header_unistd.h" = "no"; then
          guile_cv_header_libc_with_unistd="yes"
        else
          AC_TRY_COMPILE(
	    [
#             include <libc.h>
#             include <unistd.h>
	    ],
	    [],
	    [guile_cv_header_libc_with_unistd=yes],
	    [guile_cv_header_libc_with_unistd=no]
          )
        fi
      ]
    )
    if test "$guile_cv_header_libc_with_unistd" = yes; then
      AC_DEFINE(LIBC_H_WITH_UNISTD_H)
    fi
  ]
)

# Do all the work for Automake.  This macro actually does too much --
# some checks are only needed if your package does certain things.
# But this isn't really a big deal.

# serial 1

dnl Usage:
dnl AM_INIT_AUTOMAKE(package,version, [no-define])

AC_DEFUN(AM_INIT_AUTOMAKE,
[AC_REQUIRE([AM_PROG_INSTALL])
PACKAGE=[$1]
AC_SUBST(PACKAGE)
VERSION=[$2]
AC_SUBST(VERSION)
ifelse([$3],,
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
AM_SANITY_CHECK
AC_ARG_PROGRAM
dnl FIXME This is truly gross.
missing_dir=`cd $ac_aux_dir && pwd`
AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
AC_PROG_MAKE_SET])


# serial 1

AC_DEFUN(AM_PROG_INSTALL,
[AC_REQUIRE([AC_PROG_INSTALL])
test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
AC_SUBST(INSTALL_SCRIPT)dnl
])

#
# Check to make sure that the build environment is sane.
#

AC_DEFUN(AM_SANITY_CHECK,
[AC_MSG_CHECKING([whether build environment is sane])
# Just in case
sleep 1
echo timestamp > conftestfile
# Do `set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
   if test "$@" = "X"; then
      # -L didn't work.
      set X `ls -t $srcdir/configure conftestfile`
   fi
   test "[$]2" = conftestfile
   )
then
   # Ok.
   :
else
   AC_MSG_ERROR([newly created file is older than distributed files!
Check your system clock])
fi
rm -f conftest*
AC_MSG_RESULT(yes)])

dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
dnl The program must properly implement --version.
AC_DEFUN(AM_MISSING_PROG,
[AC_MSG_CHECKING(for working $2)
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
if ($2 --version) > /dev/null 2>&1; then
   $1=$2
   AC_MSG_RESULT(found)
else
   $1="$3/missing $2"
   AC_MSG_RESULT(missing)
fi
AC_SUBST($1)])

# Add --enable-maintainer-mode option to configure.
# From Jim Meyering

# serial 1

AC_DEFUN(AM_MAINTAINER_MODE,
[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  dnl maintainer-mode is disabled by default
  AC_ARG_ENABLE(maintainer-mode,
[  --enable-maintainer-mode enable make rules and dependencies not useful
                          (and sometimes confusing) to the casual installer],
      USE_MAINTAINER_MODE=$enableval,
      USE_MAINTAINER_MODE=no)
  AC_MSG_RESULT($USE_MAINTAINER_MODE)
  if test $USE_MAINTAINER_MODE = yes; then
    MAINT=
  else
    MAINT='#M#'
  fi
  AC_SUBST(MAINT)dnl
]
)

# Like AC_CONFIG_HEADER, but automatically create stamp file.

AC_DEFUN(AM_CONFIG_HEADER,
[AC_PREREQ([2.12])
AC_CONFIG_HEADER([$1])
dnl When config.status generates a header, we must update the stamp-h file.
dnl This file resides in the same directory as the config header
dnl that is generated.  We must strip everything past the first ":",
dnl and everything past the last "/".
AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl
changequote([,]))])


# serial 4 AM_PROG_LIBTOOL
AC_DEFUN(AM_PROG_LIBTOOL,
[AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_RANLIB])

# Always use our own libtool.
LIBTOOL='$(top_builddir)/libtool'
AC_SUBST(LIBTOOL)

dnl Allow the --disable-shared flag to stop us from building shared libs.
AC_ARG_ENABLE(shared,
[  --enable-shared         build shared libraries [default=yes]],
test "$enableval" = no && libtool_shared=" --disable-shared",
libtool_shared=)

libtool_flags="$libtool_shared"
test "$silent" = yes && libtool_flags="$libtool_flags --silent"
test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"

[case "$host" in
*-*-irix6*)
  # For IRIX 6, ld needs -n32 if cc uses it.
  if echo " $CC $CFLAGS " | egrep -e '[ 	]-n32[	 ]' > /dev/null; then
    LD="${LD-ld} -n32"
  fi
  ;;

*-*-sco3.2v5*)
  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
  CFLAGS="$CFLAGS -belf"
  ;;
esac]

# Actually configure libtool.  ac_aux_dir is where install-sh is found.
CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig \
$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
|| AC_MSG_ERROR([libtool configure failed])
])

dnl
dnl CY_AC_WITH_THREADS determines which thread library the user intends
dnl to put underneath guile.  Pass it the path to find the guile top-level
dnl source directory.  Eg CY_AC_WITH_THREADS(../..) for tcl/unix.
dnl

AC_DEFUN([CY_AC_WITH_THREADS],[
AC_CACHE_CHECK("threads package type",cy_cv_threads_package,[
AC_CACHE_VAL(cy_cv_threads_cflags,[
AC_CACHE_VAL(cy_cv_threads_libs,[
use_threads=no;
AC_ARG_WITH(threads,[  --with-threads          thread interface],
            use_threads=$withval, use_threads=no)
test -n "$use_threads" || use_threads=qt
threads_package=unknown
if test "$use_threads" != no; then
dnl
dnl Test for the qt threads package - used for cooperative threads
dnl This may not necessarily be built yet - so just check for the
dnl header files.
dnl
  if test "$use_threads" = yes || test "$use_threads" = qt; then
     # Look for qt in source directory. 
     if test -f $srcdir/qt/qt.c; then
	qtsrcdir="`(cd $srcdir; pwd)`/qt"
	threads_package=COOP
	cy_cv_threads_cflags="-I$qtsrcdir -I../qt"
	cy_cv_threads_libs="../qt/libqt.a"
     fi
  else
     if test -f $use_threads/qt.c; then
	# FIXME seems as though we should try to use an installed qt here.
	threads_package=COOP
	cy_cv_threads_cflags="-I$use_threads -I../qt"
	cy_cv_threads_libs="../qt/libqt.a"
     fi
  fi
  if test "$use_threads" = pthreads; then
     # Look for pthreads in srcdir.  See above to understand why
     # we always set threads_package.
     if test -f $srcdir/../../pthreads/pthreads/queue.c \
	  || test -f $srcdir/../pthreads/pthreads/queue.c; then
	threads_package=MIT
	cy_cv_threads_cflags="-I$srcdir/../../pthreads/include"
	cy_cv_threads_libs="-L../../pthreads/lib -lpthread"
     fi
  fi
  saved_CPP="$CPPFLAGS"
  saved_LD="$LDFLAGS"
  saved_LIBS="$LIBS"
  if test "$threads_package" = unknown; then
dnl
dnl Test for the FSU threads package
dnl
    CPPFLAGS="-I$use_threads/include"
    LDFLAGS="-L$use_threads/lib"
    LIBS="-lgthreads -lmalloc"
    AC_TRY_LINK([#include <pthread.h>],[
pthread_equal(NULL,NULL);
], threads_package=FSU)
  fi
  if test "$threads_package" = unknown; then
dnl
dnl Test for the MIT threads package
dnl
    LIBS="-lpthread"
    AC_TRY_LINK([#include <pthread.h>],[
pthread_equal(NULL,NULL);
], threads_package=MIT)
  fi
  if test "$threads_package" = unknown; then
dnl
dnl Test for the PCthreads package
dnl
    LIBS="-lpthreads"
    AC_TRY_LINK([#include <pthread.h>],[
pthread_equal(NULL,NULL);
], threads_package=PCthreads)
  fi
dnl
dnl Set the appropriate flags!
dnl 
  cy_cv_threads_cflags="$CPPFLAGS $cy_cv_threads_cflags"
  cy_cv_threads_libs="$LDFLAGS $LIBS $cy_cv_threads_libs"
  cy_cv_threads_package=$threads_package
  CPPFLAGS="$saved_CPP"
  LDFLAGS="$saved_LD"
  LIBS="$saved_LIBS"
  if test "$threads_package" = unknown; then
    AC_MSG_ERROR("cannot find thread library installation")
  fi
fi
])
])
],
dnl
dnl Set flags according to what is cached.
dnl
CPPFLAGS="$cy_cv_threads_cflags"
LIBS="$cy_cv_threads_libs"
)
])