Now creates modules directory if it didn't exist before.

Added some Dynix compatibility.

Rev: src/configure.in:1.40

src/configure.in

-AC_REVISION("$Id: configure.in,v 1.39 1997/01/12 00:35:51 grubba Exp $")
+AC_REVISION("$Id: configure.in,v 1.40 1997/01/12 02:16:01 grubba Exp $")
 AC_INIT(interpret.c)
 AC_CONFIG_HEADER(machine.h)
 
@@ -176,6 +176,9 @@ fi
 if test -f modules/master_lib_dirs; then
   rm modules/master_lib_dirs
 else : ; fi
+if test -d modules/. ; then : ; else
+  mkdir modules
+fi
 if test $cppflags_is_set$ldflags_is_set = nono -a x${C_INCLUDE_PATH-} = x ; then
   for d in /usr/gnu /opt/gnu /usr/local /sw/gnu /sw
   do
@@ -183,14 +186,20 @@ if test $cppflags_is_set$ldflags_is_set = nono -a x${C_INCLUDE_PATH-} = x ; then
       echo Adding $d/lib to the library-path
       LDFLAGS="${LDFLAGS} -L$d/lib"
       echo $d/lib >>modules/master_lib_dirs
+    else
+      :
     fi
 
     if test -d "$d/include" ; then
       echo Adding $d/include to the include-path
       CPPFLAGS="${CPPFLAGS} -I$d/include"
+    else
+      :
     fi
   done
   export LDFLAGS CPPFLAGS
+else
+  :
 fi
 
 #############################################################################