--- install/m4/x_ac_qe_f90.m4.orig	2016-04-21 14:04:19.000000000 -0400
+++ install/m4/x_ac_qe_f90.m4	2016-04-21 14:56:02.000000000 -0400
@@ -262,6 +262,18 @@
         test_fflags="`echo $f90flags | sed 's/\$([[^)]]*)//g'`"
 fi
 
+AC_MSG_CHECKING([whether the Fortran compiler can perform preprocessing])
+acx_save_FCFLAGS="$FCFLAGS"
+FCFLAGS="$F90FLAGS"
+AC_LANG_PUSH(Fortran)
+AC_COMPILE_IFELSE( AC_LANG_PROGRAM( [], [
+#define SUBSTME integer
+SUBSTME :: ii
+ ]),
+ [have_cpp=1; AC_MSG_RESULT([yes])],[have_cpp=0; AC_MSG_RESULT([no])])
+AC_LANG_POP(Fortran)
+FCFLAGS="$acx_save_FCFLAGS"
+
 AC_SUBST(pre_fdflags)
 AC_SUBST(f90flags)
 AC_SUBST(fflags)