Description of problem:
See also:

https://sourceware.org/glibc/wiki/Release/2.36#Usage_of_.3Clinux.2Fmount.h.3E_and_.3Csys.2Fmount.h.3E

stress-ng ends up mixing linux/mount.h and sys/mount.h because of which build fails against the latest glibc:

https://download.copr.fedorainfracloud.org/results/siddhesh/mpb.1/fedora-rawhide-x86_64/04659418-stress-ng/builder-live.log.gz

gcc -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64  -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wall -Wextra -DVERSION='"0.14.02"' -O2 -std=gnu99  -Wall -Wextra -DVERSION='"0.14.02"' -O2 -std=gnu99  -c -o core-helper.o core-helper.c
In file included from core-helper.c:20:
stress-ng.h:39: warning: "_FORTIFY_SOURCE" redefined
   39 | #define _FORTIFY_SOURCE 2
      | 
<command-line>: note: this is the location of the previous definition
In file included from /usr/include/linux/fs.h:19,
                 from core-helper.c:59:
/usr/include/linux/mount.h:95:6: error: redeclaration of 'enum fsconfig_command'
   95 | enum fsconfig_command {
      |      ^~~~~~~~~~~~~~~~
In file included from core-helper.c:43:
/usr/include/sys/mount.h:189:6: note: originally defined here
  189 | enum fsconfig_command
      |      ^~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:96:9: error: redeclaration of enumerator 'FSCONFIG_SET_FLAG'
   96 |         FSCONFIG_SET_FLAG       = 0,    /* Set parameter, supplying no value */
      |         ^~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:191:3: note: previous definition of 'FSCONFIG_SET_FLAG' with type 'enum fsconfig_command'
  191 |   FSCONFIG_SET_FLAG       = 0,    /* Set parameter, supplying no value */
      |   ^~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:97:9: error: redeclaration of enumerator 'FSCONFIG_SET_STRING'
   97 |         FSCONFIG_SET_STRING     = 1,    /* Set parameter, supplying a string value */
      |         ^~~~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:193:3: note: previous definition of 'FSCONFIG_SET_STRING' with type 'enum fsconfig_command'
  193 |   FSCONFIG_SET_STRING     = 1,    /* Set parameter, supplying a string value */
      |   ^~~~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:98:9: error: redeclaration of enumerator 'FSCONFIG_SET_BINARY'
   98 |         FSCONFIG_SET_BINARY     = 2,    /* Set parameter, supplying a binary blob value */
      |         ^~~~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:195:3: note: previous definition of 'FSCONFIG_SET_BINARY' with type 'enum fsconfig_command'
  195 |   FSCONFIG_SET_BINARY     = 2,    /* Set parameter, supplying a binary blob value */
      |   ^~~~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:99:9: error: redeclaration of enumerator 'FSCONFIG_SET_PATH'
   99 |         FSCONFIG_SET_PATH       = 3,    /* Set parameter, supplying an object by path */
      |         ^~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:197:3: note: previous definition of 'FSCONFIG_SET_PATH' with type 'enum fsconfig_command'
  197 |   FSCONFIG_SET_PATH       = 3,    /* Set parameter, supplying an object by path */
      |   ^~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:100:9: error: redeclaration of enumerator 'FSCONFIG_SET_PATH_EMPTY'
  100 |         FSCONFIG_SET_PATH_EMPTY = 4,    /* Set parameter, supplying an object by (empty) path */
      |         ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:199:3: note: previous definition of 'FSCONFIG_SET_PATH_EMPTY' with type 'enum fsconfig_command'
  199 |   FSCONFIG_SET_PATH_EMPTY = 4,    /* Set parameter, supplying an object by (empty) path */
      |   ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:101:9: error: redeclaration of enumerator 'FSCONFIG_SET_FD'
  101 |         FSCONFIG_SET_FD         = 5,    /* Set parameter, supplying an object by fd */
      |         ^~~~~~~~~~~~~~~
/usr/include/sys/mount.h:201:3: note: previous definition of 'FSCONFIG_SET_FD' with type 'enum fsconfig_command'
  201 |   FSCONFIG_SET_FD         = 5,    /* Set parameter, supplying an object by fd */
      |   ^~~~~~~~~~~~~~~
/usr/include/linux/mount.h:102:9: error: redeclaration of enumerator 'FSCONFIG_CMD_CREATE'
  102 |         FSCONFIG_CMD_CREATE     = 6,    /* Invoke superblock creation */
      |         ^~~~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:203:3: note: previous definition of 'FSCONFIG_CMD_CREATE' with type 'enum fsconfig_command'
  203 |   FSCONFIG_CMD_CREATE     = 6,    /* Invoke superblock creation */
      |   ^~~~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:103:9: error: redeclaration of enumerator 'FSCONFIG_CMD_RECONFIGURE'
  103 |         FSCONFIG_CMD_RECONFIGURE = 7,   /* Invoke superblock reconfiguration */
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:205:3: note: previous definition of 'FSCONFIG_CMD_RECONFIGURE' with type 'enum fsconfig_command'
  205 |   FSCONFIG_CMD_RECONFIGURE = 7,   /* Invoke superblock reconfiguration */
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:129:8: error: redefinition of 'struct mount_attr'
  129 | struct mount_attr {
      |        ^~~~~~~~~~
/usr/include/sys/mount.h:161:8: note: originally defined here
  161 | struct mount_attr
      |        ^~~~~~~~~~