--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libvtv/acinclude.m4	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,47 @@
+dnl ----------------------------------------------------------------------
+dnl This whole bit snagged from libgfortran.
+
+sinclude(../libtool.m4)
+dnl The lines below arrange for aclocal not to bring an installed
+dnl libtool.m4 into aclocal.m4, while still arranging for automake to
+dnl add a definition of LIBTOOL to Makefile.in.
+ifelse(,,,[AC_SUBST(LIBTOOL)
+AC_DEFUN([AM_PROG_LIBTOOL])
+])
+
+
+
+dnl
+dnl Initialize the rest of the library configury.  At this point we have
+dnl variables like $host.
+dnl
+dnl Substs:
+dnl  libvtv_builddir     (absolute path)
+dnl  libvtv_srcdir       (absolute path)
+dnl  toplevel_builddir    (absolute path)
+dnl  toplevel_srcdir      (absolute path)
+dnl  with_cross_host
+dnl  with_newlib
+dnl  with_target_subdir
+dnl plus
+dnl  - the variables in LIBVTV_CHECK_HOST / configure.host
+dnl  - default settings for all AM_CONDITIONAL test variables
+dnl  - lots of tools, like CC and CXX
+dnl
+AC_DEFUN([LIBVTV_CONFIGURE], [
+
+  # These need to be absolute paths, yet at the same time need to
+  # canonicalize only relative paths, because then amd will not unmount
+  # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
+  libvtv_builddir=`${PWDCMD-pwd}`
+  case $srcdir in
+    [\\/$]* | ?:[\\/]*) libvtv_srcdir=${srcdir} ;;
+    *) libvtv_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
+  esac
+  toplevel_builddir=${libvtv_builddir}/..
+  toplevel_srcdir=${libvtv_srcdir}/..
+  AC_SUBST(libvtv_builddir)
+  AC_SUBST(libvtv_srcdir)
+  AC_SUBST(toplevel_builddir)
+  AC_SUBST(toplevel_srcdir)
+])