fixed configure.in when zarith is installed in subdirectory zarith

1ce26290 · Jean-Christophe Filliâtre · 9dcd1891 · 1ce26290
Commit 1ce26290 authored Mar 24, 2014 by Jean-Christophe Filliâtre
--- a/configure.in
+++ b/configure.in
@@ -354,7 +354,7 @@ if test "$enable_zarith" = yes; then
         AC_MSG_WARN([Lib Zarith not found, using Nums instead.])
         reason_zarith=" (zarith not found)"
      else
-         BIGINTINCLUDE="+zarith"
+         BIGINTINCLUDE="-I +zarith"
      fi
   fi
 fi