escape backslash

diff --git a/m4/psi_const.m4 b/m4/psi_const.m4
index 8ea5c1f4491510e6e430fa3beea4795900a0acfc..900b536e6d437b8362292c07a6263459364883c7 100644 (file)
--- a/m4/psi_const.m4
+++ b/m4/psi_const.m4
@@ -12,7 +12,7 @@ EOF
 psi_add_int_const() {
        grep -q "\"psi\\\\\\\\$1\"" $PSI_CONSTS \
                || cat >>$PSI_CONSTS <<EOF
-       {PSI_T_INT, "int", "psi\\$1", "$2", PSI_T_NUMBER}, 
+       {PSI_T_INT, "int", "psi\\\\$1", "$2", PSI_T_NUMBER}, 
 EOF
 }