tcsh-6.19.00-024-use-sysmalloc.patch added
    
      This will force tcsh to use system malloc instead of builtin malloc,
      and is related to BZ: #1303323
    
      > Detect __GLIBC__ so it uses sysmalloc from <features.h>
      > https://bugzilla.redhat.com/show_bug.cgi?id=1303323