gnu/packages/patches/casync-renameat2-declaration.patch

   1 Fix build failure on glibc 2.28 where 'renameat2' would end up being
   2 declared twice: <https://github.com/systemd/casync/issues/166>.
   3
   4 From 625244ca47e8ee1375d2d0092271bfd13b0913ea Mon Sep 17 00:00:00 2001
   5 From: Daniel Mack <daniel@zonque.org>
   6 Date: Tue, 13 Nov 2018 17:52:48 +0100
   7 Subject: [PATCH] meson.build: pass -D_GNU_SOURCE when checking for functions
   8
   9 As described in #166, -D_GNU_SOURCE needs to be passed to the meson function
  10 availability checker. h/t to @tomeon for providing a link to the solution as
  11 well.
  12 ---
  13  meson.build | 2 +-
  14  1 file changed, 1 insertion(+), 1 deletion(-)
  15
  16 diff --git a/meson.build b/meson.build
  17 index f42ed16..c0f741e 100644
  18 --- a/meson.build
  19 +++ b/meson.build
  20 @@ -78,6 +78,6 @@ foreach ident : [
  21          ['copy_file_range',   '''#include <sys/syscall.h>
  22                                   #include <unistd.h>'''],
  23  ]
  24 -        have = cc.has_function(ident[0], prefix : ident[1])
  25 +        have = cc.has_function(ident[0], args : '-D_GNU_SOURCE', prefix : ident[1])
  26          conf.set10('HAVE_' + ident[0].to_upper(), have)
  27  endforeach