Note that this patch for aligning the return value of sbrk() is for Solaris for Intel (https://www.oracle.com/servers/x86/). However the patch is not very machine specific because this is based on the SUS (Single UNIX Specification) so the patch may equally apply to a whole range of different servers and UNIX workstations from the many members of the OpenGroup (https://%5Bwww.opengroup.org%5D(https://www.opengroup.org/)/)