Branch :
## --------------------------------------------------------- ##
## Fake the existence of programs that GNU maintainers use. ##
## --------------------------------------------------------- ##
# AM_MISSING_PROG(NAME, PROGRAM)
AC_DEFUN([AM_MISSING_PROG], [
AC_REQUIRE([AM_MISSING_HAS_RUN])
$1=${$1-"${am_missing_run}$2"}
AC_SUBST($1)])
# Like AM_MISSING_PROG, but only looks for install-sh.
# AM_MISSING_INSTALL_SH()
AC_DEFUN([AM_MISSING_INSTALL_SH], [
AC_REQUIRE([AM_MISSING_HAS_RUN])
if test -z "$install_sh"; then
install_sh="$ac_aux_dir/install-sh"
test -f "$install_sh" || install_sh="$ac_aux_dir/install.sh"
test -f "$install_sh" || install_sh="${am_missing_run}${ac_auxdir}/install-sh"
dnl FIXME: an evil hack: we remove the SHELL invocation from
dnl install_sh because automake adds it back in. Sigh.
install_sh="`echo $install_sh | sed -e 's/\${SHELL}//'`"
fi
AC_SUBST(install_sh)])
# AM_MISSING_HAS_RUN.
# Define MISSING if not defined so far and test if it supports --run.
# If it does, set am_missing_run to use it, otherwise, to nothing.
AC_DEFUN([AM_MISSING_HAS_RUN], [
test x"${MISSING+set}" = xset || \
MISSING="\${SHELL} `CDPATH=: && cd $ac_aux_dir && pwd`/missing"
# Use eval to expand $SHELL
if eval "$MISSING --run :"; then
am_missing_run="$MISSING --run "
else
am_missing_run=
am_backtick='`'
AC_MSG_WARN([${am_backtick}missing' script is too old or missing])
fi
])