Bug#1003929: ncurses: please make the build reproducible

[Chris Lamb]

Source: ncurses
Version: 6.3-2
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: umask
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0] we noticed that
ncurses could not be built reproducibly.

This is because the README.gz file will retain its group-writeable bit
due to the use of dh_fixperms -Xfoo, and will thus vary when the package
is built with a different umask:

    --rw-r--r--   0 root         (0) root         (0)     7937 2021-03-07 00:08:58.000000 ./usr/libexec/ncurses-examples/README.gz
    +-rw-rw-r--   0 root         (0) root         (0)     7937 2021-03-07 00:08:58.000000 ./usr/libexec/ncurses-examples/README.gz

Patch attached that removes this bit manually, but feel free to go with a
different solution, of course.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-

-------------- next part --------------
--- a/debian/rules	2022-01-18 08:47:42.277389249 +0000
--- b/debian/rules	2022-01-18 09:03:30.547729907 +0000
@@ -508,6 +508,7 @@
 	dh_compress -p$(package-examples) usr/libexec/ncurses-examples/README
 	dh_compress -a -N$(package-examples)
 	dh_fixperms -a -Xusr/libexec/ncurses-examples/README
+	chmod g-w debian/ncurses-examples/usr/libexec/ncurses-examples/README.gz
 	dh_missing -a --fail-missing
 	dh_makeshlibs -p$(package-ti) -V "$(package-ti) $(sodepver)" --add-udeb=$(package-ti)-udeb -- -c4
 	dh_makeshlibs -p$(package-lib) -V "$(package-lib) $(sodepver)" -- -c4