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dnl Process this file with autoconf to produce a configure script

AC_PREREQ(2.13)

AC_INIT(pexecute.c)

dnl We use these options to decide which functions to include.

AC_ARG_WITH(target-subdir,

[  --with-target-subdir=SUBDIR      Configuring in a subdirectory])

AC_ARG_WITH(cross-host,

[  --with-cross-host=HOST           Configuring with a cross compiler])

AC_ARG_WITH(newlib,

[  --with-newlib                    Configuring with newlib])

if test "${srcdir}" = "."; then

  if test -z "${with_target_subdir}"; then

    libiberty_topdir="${srcdir}/.."

  else

    if test "${with_target_subdir}" != "."; then

      libiberty_topdir="${srcdir}/${with_multisrctop}../.."

    else

      libiberty_topdir="${srcdir}/${with_multisrctop}.."

    fi

  fi

else

  libiberty_topdir="${srcdir}/.."

fi

AC_CONFIG_AUX_DIR($libiberty_topdir)

AC_CANONICAL_HOST

dnl When we start using automake:

dnl AM_INIT_AUTOMAKE(libiberty, 1.0)

dnl These must be called before AM_PROG_LIBTOOL, because it may want

dnl to call AC_CHECK_PROG.

AC_CHECK_TOOL(AR, ar)

AC_CHECK_TOOL(RANLIB, ranlib, :)

# FIXME: We temporarily define our own version of AC_PROG_CC.  This is

# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We

# are probably using a cross compiler, which will not be able to fully

# link an executable.  This should really be fixed in autoconf

# itself.

AC_DEFUN(LIB_AC_PROG_CC,

[AC_BEFORE([$0], [AC_PROG_CPP])dnl

AC_PROVIDE([AC_PROG_CC])

AC_CHECK_PROG(CC, gcc, gcc)

if test -z "$CC"; then

  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)

  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])

fi

AC_PROG_CC_GNU

if test $ac_cv_prog_gcc = yes; then

  GCC=yes

  ac_libiberty_warn_cflags='-W -Wall -Wtraditional'

dnl Check whether -g works, even if CFLAGS is set, in case the package

dnl plays around with CFLAGS (such as to build both debugging and

dnl normal versions of a library), tasteless as that idea is.

  ac_test_CFLAGS="${CFLAGS+set}"

  ac_save_CFLAGS="$CFLAGS"

  CFLAGS=

  AC_PROG_CC_G

  if test "$ac_test_CFLAGS" = set; then

    CFLAGS="$ac_save_CFLAGS"

  elif test $ac_cv_prog_cc_g = yes; then

    CFLAGS="-g -O2"

  else

    CFLAGS="-O2"

  fi

else

  GCC=

  ac_libiberty_warn_cflags=

  test "${CFLAGS+set}" = set || CFLAGS="-g"

fi

])

AC_SUBST(ac_libiberty_warn_cflags)

LIB_AC_PROG_CC

AC_ISC_POSIX

dnl When we start using libtool:

dnl Default to a non shared library.  This may be overridden by the

dnl configure option --enable-shared.

dnl AM_DISABLE_SHARED

dnl When we start using libtool:

dnl AM_PROG_LIBTOOL

dnl When we start using automake:

dnl AM_CONFIG_HEADER(config.h:config.in)

AC_CONFIG_HEADER(config.h:config.in)

dnl When we start using automake:

dnl AM_MAINTAINER_MODE

dnl AC_EXEEXT

dnl When we start using automake:

dnl AM_PROG_INSTALL

AC_PROG_INSTALL

. ${srcdir}/config.table

host_makefile_frag=${frag}

AC_SUBST_FILE(host_makefile_frag)

# It's OK to check for header files.  Although the compiler may not be

# able to link anything, it had better be able to at least compile

# something.

AC_CHECK_HEADERS(sys/file.h sys/param.h stdlib.h string.h unistd.h strings.h sys/time.h sys/resource.h sys/stat.h)

AC_HEADER_SYS_WAIT

# This is the list of functions which libiberty will provide if they

# are not available on the host.

funcs="asprintf"

funcs="$funcs atexit"

funcs="$funcs basename"

funcs="$funcs bcmp"

funcs="$funcs bcopy"

funcs="$funcs bzero"

funcs="$funcs calloc"

funcs="$funcs clock"

funcs="$funcs getcwd"

funcs="$funcs getpagesize"

funcs="$funcs index"

funcs="$funcs insque"

funcs="$funcs memchr"

funcs="$funcs memcmp"

funcs="$funcs memcpy"

funcs="$funcs memmove"

funcs="$funcs memset"

funcs="$funcs mkstemps"

funcs="$funcs putenv"

funcs="$funcs random"

funcs="$funcs rename"

funcs="$funcs rindex"

funcs="$funcs setenv"

funcs="$funcs sigsetmask"

funcs="$funcs strcasecmp"

funcs="$funcs strchr"

funcs="$funcs strdup"

funcs="$funcs strncasecmp"

funcs="$funcs strrchr"

funcs="$funcs strstr"

funcs="$funcs strtod"

funcs="$funcs strtol"

funcs="$funcs strtoul"

funcs="$funcs tmpnam"

funcs="$funcs vasprintf"

funcs="$funcs vfprintf"

funcs="$funcs vprintf"

funcs="$funcs vsprintf"

funcs="$funcs waitpid"

# Also in the old function.def file: alloca, vfork, getopt.

vars="sys_errlist sys_nerr sys_siglist"

checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"

# These are neither executed nor required, but they help keep

# autoheader happy without adding a bunch of text to acconfig.h.

if test "x" = "y"; then

  AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bzero calloc clock getcwd)

  AC_CHECK_FUNCS(getpagesize index insque mkstemps memchr memcmp memcpy memmove)

  AC_CHECK_FUNCS(memset putenv random rename rindex sigsetmask strcasecmp)

  AC_CHECK_FUNCS(setenv strchr strdup strncasecmp strrchr strstr strtod strtol)

  AC_CHECK_FUNCS(strtoul tmpnam vasprintf vfprintf vprintf vsprintf waitpid)

  AC_DEFINE(HAVE_SYS_ERRLIST)

  AC_DEFINE(HAVE_SYS_NERR)

  AC_DEFINE(HAVE_SYS_SIGLIST)

  AC_CHECK_FUNCS(getrusage on_exit psignal strerror strsignal sysconf times)

  AC_CHECK_FUNCS(sbrk gettimeofday)

fi

# For each of these functions, if the host does not provide the

# function we want to put FN.o in LIBOBJS, and if the host does

# provide the function, we want to define HAVE_FN in config.h.  Also,

# if the host does not provide alloca, we set ALLOCA to alloca.o

setobjs=

CHECK=

if test -n "${with_target_subdir}"; then

  # We are being configured as a target library.  AC_REPLACE_FUNCS

  # may not work correctly, because the compiler may not be able to

  # link executables.  Note that we may still be being configured

  # native.

  # If we are being configured for newlib, we know which functions

  # newlib provide and which ones we will be expected to provide.

  if test "x${with_newlib}" = "xyes"; then

    ALLOCA="alloca.o"

    LIBOBJS="asprintf.o basename.o insque.o random.o strdup.o vasprintf.o"

    for f in $funcs; do

      case "$f" in

        asprintf | basename | insque | random | strdup | vasprintf)

          ;;

        *)

          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`

          AC_DEFINE_UNQUOTED($n)

          ;;

      esac

    done

    # newlib doesnt provide any of the variables in $vars, so we

    # dont have to check them here.

    # Of the functions in $checkfuncs, newlib only has strerror.

    AC_DEFINE(HAVE_STRERROR)

    setobjs=yes

  fi

else

   # Not a target library, so we set things up to run the test suite.

   CHECK=check-cplus-dem

fi

AC_SUBST(CHECK)

if test -z "${setobjs}"; then

  case "${host}" in

  *-*-vxworks*)

    # Handle VxWorks configuration specially, since on VxWorks the

    # libraries are actually on the target board, not in the file

    # system.

    LIBOBJS="basename.o getpagesize.o insque.o random.o strcasecmp.o"

    LIBOBJS="$LIBOBJS strncasecmp.o strdup.o vfork.o waitpid.o vasprintf.o"

    for f in $funcs; do

      case "$f" in

        basename | getpagesize | insque | random | strcasecmp)

          ;;

        strncasecmp | strdup | vfork | waitpid | vasprintf)

          ;;

        *)

          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`

          AC_DEFINE_UNQUOTED($n)

          ;;

      esac

    done

    # VxWorks doesn't provide any of the variables in $vars, so we

    # don't have to check them here.

    # Of the functions in $checkfuncs, VxWorks only has strerror.

    AC_DEFINE(HAVE_STRERROR)

    setobjs=yes

    ;;

  esac

fi

if test -z "${setobjs}"; then

  case "${host}" in

  *-*-cygwin*)

    # The Cygwin library actually uses a couple of files from

    # libiberty when it is built.  If we are building a native

    # Cygwin, and we run the tests, we will appear to have these

    # files.  However, when we go on to build winsup, we will wind up

    # with a library which does not have the files, since they should

    # have come from libiberty.

    # We handle this by removing the functions the winsup library

    # provides from our shell variables, so that they appear to be

    # missing.

    funcs="`echo $funcs | sed -e 's/random//'`"

    LIBOBJS="$LIBOBJS random.o"

    vars="`echo $vars | sed -e 's/sys_siglist//'`"

    checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"

    ;;

  *-*-mingw32*)

    # Under mingw32, sys_nerr and sys_errlist exist, but they are

    # macros, so the test below won't find them.

    vars="`echo $vars | sed -e 's/sys_nerr//' -e 's/sys_errlist//'`"

    AC_DEFINE(HAVE_SYS_NERR)

    AC_DEFINE(HAVE_SYS_ERRLIST)

    ;;

  *-*-uwin*)

    # Under some versions of uwin, vfork is notoriously buggy and the test

    # can hang configure; on other versions, vfork exists just as a stub.

    # FIXME: This should be removed once vfork in uwin's runtime is fixed.

    ac_cv_func_vfork_works=no

    # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are

    # macros (actually, these are imported from a DLL, but the end effect

    # is the same), so the test below won't find them.

    AC_DEFINE(HAVE_SYS_NERR)

    AC_DEFINE(HAVE_SYS_ERRLIST)

    ;;

  esac

  # We haven't set the list of objects yet.  Use the standard autoconf

  # tests.  This will only work if the compiler works.

  AC_PROG_CC_WORKS

  AC_REPLACE_FUNCS($funcs)

  case "${host}" in

  *-*-interix)

    # On Interix, it wrongly concludes that the MSVC compiler supports alloca.

    # (MSVC does on Win32, not on Interix.)

    # This should be temporary.

    ac_cv_header_alloca_h=no

    ac_cv_func_alloca_works=no

    ALLOCA=alloca.o

    cat >> confdefs.h <<\EOF

#define C_ALLOCA 1

EOF

    cat >> confdefs.h <

#define STACK_DIRECTION -1

EOF

    ;;

  *)

    AC_FUNC_ALLOCA

    ;;

  esac

  AC_FUNC_VFORK

  if test $ac_cv_func_vfork_works = no; then

    LIBOBJS="$LIBOBJS vfork.o"

  fi

  for v in $vars; do

    AC_MSG_CHECKING([for $v])

    AC_CACHE_VAL(libiberty_cv_var_$v,

      [AC_TRY_LINK([int *p;], [extern int $v; p = &$v;],

                   [eval "libiberty_cv_var_$v=yes"],

                   [eval "libiberty_cv_var_$v=no"])])

    if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then

      AC_MSG_RESULT(yes)

      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`

      AC_DEFINE_UNQUOTED($n)

    else

      AC_MSG_RESULT(no)

    fi

  done

  AC_CHECK_FUNCS($checkfuncs)

fi

# Install a library built with a cross compiler in $(tooldir) rather

# than $(libdir).

if test -z "${with_cross_host}"; then

  INSTALL_DEST=libdir

else

  INSTALL_DEST=tooldir

fi

AC_SUBST(INSTALL_DEST)

# We need multilib support, but only if configuring for the target.

AC_OUTPUT(Makefile testsuite/Makefile,

[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h

if test -n "$CONFIG_FILES"; then

  if test -n "${with_target_subdir}"; then

    # FIXME: We shouldn't need to set ac_file

    ac_file=Makefile

    . ${libiberty_topdir}/config-ml.in

  fi

fi],

srcdir=${srcdir}

host=${host}

target=${target}

with_target_subdir=${with_target_subdir}

with_multisubdir=${with_multisubdir}

ac_configure_args="--enable-multilib ${ac_configure_args}"

CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}

libiberty_topdir=${libiberty_topdir}

)