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daemon: Don't include <linux/fs.h>.

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As of GNU libc 2.29, <sys/mount.h> declares all the constants and
functions we need, so there's no use in including <linux/fs.h> anymore.
This silences annoying warnings like this one:

  In file included from nix/libstore/local-store.cc:32:0:
  /gnu/store/…-linux-libre-headers-4.19.56/include/linux/fs.h:108:0: warning: "MS_RDONLY" redefined
   #define MS_RDONLY  1 /* Mount read-only */

  In file included from nix/libstore/local-store.cc:28:0:
  /gnu/store/…-glibc-2.29/include/sys/mount.h:36:0: note: this is the location of the previous definition
   #define MS_RDONLY MS_RDONLY

* config-daemon.ac: Remove check for <linux/fs.h>.
* nix/libstore/build.cc: Remove conditional inclusion of <linux/fs.h>.
* nix/libstore/local-store.cc: Remove "#if HAVE_LINUX_FS_H" and
inclusion of <linux/fs.h>.
This commit is contained in:
Ludovic Courtès 2019-11-13 11:44:34 +01:00
parent 887fd835a7
commit 298fb2907e
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3 changed files with 0 additions and 11 deletions
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3
config-daemon.ac
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@ -115,9 +115,6 @@ if test "x$guix_build_daemon" = "xyes"; then
dnl to do i686-linux builds on x86_64-linux machines.
AC_CHECK_HEADERS([sys/personality.h])
dnl Check for <linux/fs.h> (for immutable file support).
AC_CHECK_HEADERS([linux/fs.h])
dnl Determine the appropriate default list of substitute URLs (GnuTLS
dnl is required so we can default to 'https'.)
guix_substitute_urls="https://ci.guix.gnu.org"