[MacPorts] #60676: Install from source --with-no-root-privileges fails on Catalina - 'couldn't create error file for command: permission denied'

[MacPorts]

#60676: Install from source --with-no-root-privileges fails on Catalina - 'couldn't
create error file for command: permission denied'
----------------------+--------------------
 Reporter:  chucko58  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  base      |    Version:  2.6.2
 Keywords:            |       Port:
----------------------+--------------------
 I'm trying to install MacPorts 2.6.2 from source without root privileges
 on Catalina (macOS 10.15.5). This is a US Gov't owned computer and the
 system is heavily locked down.

 I do my usual workaround for the user fullname containing backslashes
 (gov't insists on using MS Active Directory), then I hit this problem:

 {{{
 /Users/cfry/MacPorts/libexec/macports/bin/tclsh8.5
 ./src/upgrade_sources_conf_default.tcl "/Users/cfry/MacPorts"
 couldn't create error file for command: permission denied
     while executing
 "open "|$mktemp -t macports_sources_upgrade.XXXXXXXXXX" r"
     invoked from within
 "set mktempChannel [open "|$mktemp -t macports_sources_upgrade.XXXXXXXXXX"
 r]"
     (file "./src/upgrade_sources_conf_default.tcl" line 31)
 make: *** [install] Error 1
 bebop-tango:MacPorts-2.6.2 cfry$
 }}}

 I searched the archives and it appears the way to get past this is to open
 up permissions on the temp directory. But I can't:
 {{{
 bebop-tango:MacPorts-2.6.2 cfry$ temp="$(mktemp -t foo)"
 bebop-tango:MacPorts-2.6.2 cfry$ echo "$temp"
 /var/folders/qx/q_vy827n3tq37jvt8c02pfpczpxbgs/T/foo.LkkIu6ai
 bebop-tango:MacPorts-2.6.2 cfry$ ls -l "$temp"
 -rw-------  1 cfry  1286109195  0 Jun 17 18:11
 /var/folders/qx/q_vy827n3tq37jvt8c02pfpczpxbgs/T/foo.LkkIu6ai
 bebop-tango:MacPorts-2.6.2 cfry$ ls -ld "$(dirname "$temp")"
 drwx------@ 93 cfry  1286109195  2976 Jun 17 18:11
 /var/folders/qx/q_vy827n3tq37jvt8c02pfpczpxbgs/T
 bebop-tango:MacPorts-2.6.2 cfry$ chmod a+rwx "$(dirname "$temp")"
 chmod: Unable to change file mode on
 /var/folders/qx/q_vy827n3tq37jvt8c02pfpczpxbgs/T: Operation not permitted
 bebop-tango:MacPorts-2.6.2 cfry$
 }}}

 I don't read tcl well enough to understand what the line in question is
 doing, but if all it's trying to do is get the name of a temp file from
 'mktemp -t' as I suspect, I am at a loss to explain why it doesn't work.

-- 
Ticket URL: <https://trac.macports.org/ticket/60676>
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