* configure.in: Check for standards.texi.

diff --git a/configure.in b/configure.in
index 57d0e01b0d9defe84bf890ff6ef9aaac1a938fde..219e0e6191c1db1b28423ce31b7682d526d33346 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1,6 +1,13 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT(acgeneral.m4)
+
+dnl We use a path for GNU m4 so even if users have another m4 first in
+dnl their path, the installer can configure with a path that has GNU m4
+dnl first and get that path embedded in the installed autoconf and
+dnl autoheader scripts.
 AC_PROGRAMS_PATH(M4, gnum4 gm4 m4, m4)
+
+dnl We use a path for perl so the #! line in autoscan will work.
 AC_PROGRAM_PATH(PERL, perl, no-perl)
 AC_SUBST(PERL)dnl
 AC_SUBST(PROGS)dnl
@@ -9,5 +16,13 @@ if test "$PERL" != no-perl; then
 else
   AC_VERBOSE(autoscan will not be built since perl is not found)
 fi
+
 AC_PROG_INSTALL
+
+# Work with the GNU or Cygnus source tree layout.
+if test -f $srcdir/standards.texi; then
+  standards_info=standards.info standards_dvi=standards.dvi
+fi
+AC_SUBST(standards_info)AC_SUBST(standards_dvi)dnl
+
 AC_OUTPUT(Makefile)