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Editing: README.tests

Date: Sat, 22 Apr 2000 06:07:06 -0600 (MDT) From: "Nelson H. F. Beebe" <beebe@math.utah.edu> Cc: beebe@math.utah.edu, sysstaff@math.utah.edu, othmer@math.utah.edu Subject: gawk-3.0.4 and a GNU/Linux gotcha Yesterday, I was assisting a colleague install some software on his GNU/Linux machine for which uname -r reports 2.2.14. A (mis)feature of this system, which I've never encountered before, broke the build of one of my programs, and also of gawk-3.0.4. Namely, the kernel will not execute anything that resides in /tmp, though it will if the same script is in /usr/tmp! % cat /tmp/foo.sh #! /bin/sh echo hello ls -l /tmp/foo.sh -rwxr-xr-x 1 othmer math 22 Apr 21 10:34 /tmp/foo.sh* % /tmp/foo.sh bash: /tmp/foo.sh: Permission denied % cp /tmp/foo.sh /usr/tmp % /usr/tmp/foo.sh hello Thus, programs that do a temporary install in /tmp, as some of mine do in order to run the validation suite, will fail. gawk-3.0.4, and likely other gawk versions, hits this problem too. It fails because test/poundbang starts with #! /tmp/gawk -f I tracked down where it comes from: % grep /tmp /etc/fstab /dev/hda3 /tmp ext2 rw,nosuid,noexec,nouser,auto,async,nodev 1 1 !!!!!! Since this is done via a mount command, potentially ANY directory tree could be mounted with noexec.
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