A patch to prevent segmentation faults in Open Babel.

openbabel-parsmart.diff

diff --git a/src/parsmart.cpp b/src/parsmart.cpp
index 120963e..22fe56e 100644
--- a/src/parsmart.cpp
+++ b/src/parsmart.cpp
@@ -1181,7 +1181,6 @@ namespace OpenBabel
                 FreeAtomExpr(expr1);
                 return (AtomExpr*)0;
               }
-            delete expr1;
             expr1 = BuildAtomBin(AE_ANDLO,expr1,expr2);
           }
         return expr1;
@@ -1282,7 +1281,6 @@ namespace OpenBabel
                 FreeBondExpr(expr1);
                 return (BondExpr*)0;
               }
-            delete expr1;
             expr1 = BuildBondBin(BE_ANDLO,expr1,expr2);
           }
         return expr1;