[Bug 2055453] [NEW] FTBFS with -Werror=implicit-function-declaration

[Dan Bungert]

Public bug reported:

As part of time_t work, -Werror=implicit-function-declaration is being
set, but that causes the following FTBFS:

https://launchpadlibrarian.net/716768885/buildlog_ubuntu-noble-
armhf.pam_1.5.3-5ubuntu1_BUILDING.txt.gz

In file included from obscure.c:42:
obscure.c: In function ‘password_check’:
support.h:160:9: error: implicit declaration of function ‘pam_overwrite_string’; did you mean ‘_pam_overwrite_n’? [-Werror=implicit-function-declaration]
  160 |         pam_overwrite_string(xx);       \
      |         ^~~~~~~~~~~~~~~~~~~~
obscure.c:151:9: note: in expansion of macro ‘_pam_delete’
  151 |         _pam_delete(newmono);
      |         ^~~~~~~~~~~

** Affects: pam (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2055453

Title:
  FTBFS with -Werror=implicit-function-declaration

Status in pam package in Ubuntu:
  New

Bug description:
  As part of time_t work, -Werror=implicit-function-declaration is being
  set, but that causes the following FTBFS:

  https://launchpadlibrarian.net/716768885/buildlog_ubuntu-noble-
  armhf.pam_1.5.3-5ubuntu1_BUILDING.txt.gz

  In file included from obscure.c:42:
  obscure.c: In function ‘password_check’:
  support.h:160:9: error: implicit declaration of function ‘pam_overwrite_string’; did you mean ‘_pam_overwrite_n’? [-Werror=implicit-function-declaration]
    160 |         pam_overwrite_string(xx);       \
        |         ^~~~~~~~~~~~~~~~~~~~
  obscure.c:151:9: note: in expansion of macro ‘_pam_delete’
    151 |         _pam_delete(newmono);
        |         ^~~~~~~~~~~

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