Solaris 10 10/09 Release: In previous Solaris releases, you could apply ACL inheritance so that all files are created with 0664 or 0666 permissions. In this release, if you want to optionally include the execute bit from the file creation mode into the inherited ACL, you can set the aclinherit mode to pass the execute permission to the inherited ACL.
If aclinherit=passthrough-x is enabled on a ZFS dataset, you can include execute permission for an output file that is generated from cc or gcc compiler tools. If the inherited ACL does not include execute permission, then the executable output from the compiler won't be executable until you use the chmod command to change the file's permissions.
For more information, see Example 8–12.