--- rpl/configure.ac	2012/07/03 08:23:29	1.36
+++ rpl/configure.ac	2012/07/04 13:44:33	1.37
@@ -38,6 +38,15 @@ CF=gfortran-$with_gcc_version
 F77=gfortran-$with_gcc_version
 ],[])
 
+dnl Checks for Bash
+BASH=$(which bash | sed 's/\//\\\//g')
+
+if test x$BASH = x; then
+	AC_MSG_ERROR([Cannot find bash! You have to install it.])
+fi
+
+AC_SUBST(BASH)
+
 dnl Checks for C compiler
 AC_PROG_CC(gcc)