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I hope you can help me. For my class project, I'm suppose to identify and fix GHOST vulnerability in GLIBC in Ubuntu 12.04; I did that. However, the instructor doesn't want the fix by just upgrading the glibc version (by doing $apt-get upgrade.) He wants us to fix the source file and then configure it and install it. Here is what I did:

1) I downloaded the source file from https://ftp.gnu.org/gnu/libc/glibc 2.17.tar.gz and it is stored it in my /Downloads.

2) then, I did $tar xvzf glibc-2.17.tar.gz

3) then, I did $cd ~/Downloads/glibc-2.17

4) I did my edits in the ~/Downloads/glibc-2.17/nss/digits_dots file

5) then, I did $./configure

here I got an error saying configure: error: you must configure in a separate build directory

6) So, I did $mkdir glibc-build

7) then, I did $cd ~/Downloads/glibc-build

8) then, I did $../glibc-2.17/configure

9) then, I did $make but it said (make: *** no targets specified and no makefile found. stop)

I really am lost here, could someone tell me what are the next procedures, i.e. how I can configure, make, and install my edits. Please help.

Thank you

  • Did step 8) complete without any errors? – steeldriver Apr 1 '17 at 20:38
  • There were no errors, but there were lots of (no's) as a result of checking. I checked ~/Downloads/glibc-builds/config.log, and it checked for make and found it in /usr/bin/make – Mona Apr 1 '17 at 21:17
  • how can i upload a snapshot ? – Mona Apr 1 '17 at 21:18
  • IIRC the configure script declines to create Makefiles for the default install prefix (to stop users screwing up their systems): did you choose a different prefix, or override with --disable-sanity-checks (which I don't recommend, for obvious reasons)? – steeldriver Apr 1 '17 at 21:30
  • Sorry! I just checked again... There was a configuration error... It says: – Mona Apr 1 '17 at 21:51

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