Q2.1.16: SXEmacs crashes in strcat on HP/UX 10

From the problems database (through the former address http://support.mayfield.hp.com/):

     Problem Report: 5003302299
     Status:         Open
     
     System/Model:   9000/700
     Product Name:   HPUX S800 10.0X
     Product Vers:   9245XB.10.00
     
     Description: strcat(3C) may read beyond
     end of source string, can cause SIGSEGV
     
     
     *** PROBLEM TEXT ***
     strcat(3C) may read beyond the source string onto an unmapped page,
     causing a segmentation violation.