# AC_PROG_INSTALL

# ---------------

#

# This macro is stolen from Autoconf 2.61a-341.

# It requires `install' to be able to install multiple files at once.

# This file will be obsolete when GCC moves to Autoconf 2.62.

m4_version_prereq([2.62], [],

[

AC_DEFUN([AC_PROG_INSTALL],

[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl

dnl AC_REQUIRE_AUX_FILE([install-sh])dnl  This line does not work with 2.59.

# Find a good install program.  We prefer a C program (faster),

# so one script is as good as another.  But avoid the broken or

# incompatible versions:

# SysV /etc/install, /usr/sbin/install

# SunOS /usr/etc/install

# IRIX /sbin/install

# AIX /bin/install

# AmigaOS /C/install, which installs bootblocks on floppy discs

# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag

# AFS /usr/afsws/bin/install, which mishandles nonexistent args

# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"

# OS/2's system install, which has a completely different semantic

# ./install, which can be erroneously created by make from ./install.sh.

# Reject install programs that cannot install multiple files.

AC_MSG_CHECKING([for a BSD-compatible install])

if test -z "$INSTALL"; then

AC_CACHE_VAL(ac_cv_path_install,

[_AS_PATH_WALK([$PATH],

[# Account for people who put trailing slashes in PATH elements.

case $as_dir/ in

  ./ | .// | /[cC]/* | \

  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \

  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \

  /usr/ucb/* ) ;;

  *)

    # OSF1 and SCO ODT 3.0 have their own names for install.

    # Don't use installbsd from OSF since it installs stuff as root

    # by default.

    for ac_prog in ginstall scoinst install; do

      for ac_exec_ext in '' $ac_executable_extensions; do

	if AS_EXECUTABLE_P(["$as_dir/$ac_prog$ac_exec_ext"]); then

	  if test $ac_prog = install &&

	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then

	    # AIX install.  It has an incompatible calling convention.

	    :

	  elif test $ac_prog = install &&

	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then

	    # program-specific install script used by HP pwplus--don't use.

	    :

	  else

	    rm -rf conftest.one conftest.two conftest.dir

	    echo one > conftest.one

	    echo two > conftest.two

	    mkdir conftest.dir

	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&

	      test -s conftest.one && test -s conftest.two &&

	      test -s conftest.dir/conftest.one &&

	      test -s conftest.dir/conftest.two

	    then

	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"

	      break 3

	    fi

	  fi

	fi

      done

    done

    ;;

esac])

rm -rf conftest.one conftest.two conftest.dir

])dnl

  if test "${ac_cv_path_install+set}" = set; then

    INSTALL=$ac_cv_path_install

  else

    # As a last resort, use the slow shell script.  Don't cache a

    # value for INSTALL within a source directory, because that will

    # break other packages using the cache if that directory is

    # removed, or if the value is a relative name.

    INSTALL=$ac_install_sh

  fi

fi

dnl Do special magic for INSTALL instead of AC_SUBST, to get

dnl relative names right.

AC_MSG_RESULT([$INSTALL])

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.

# It thinks the first close brace ends the variable substitution.

test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

AC_SUBST(INSTALL_PROGRAM)dnl

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'

AC_SUBST(INSTALL_SCRIPT)dnl

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'

AC_SUBST(INSTALL_DATA)dnl

])# AC_PROG_INSTALL

])